Digital Commons Network^™

Range Expansion Of A Locally Endangered Mustelid (Eira Barbara) In Southern Mexico, Fernando Ruiz-Gutiérrez, Enrique Vázquez-Arroyo, Cuauhtémoc Chávez

Western North American Naturalist

We documented the occurrence of Eira barbara in the municipalities of Tecpán de Galeana and Petatlán, state of Guerrero, Mexico. Our records represent a 450-km range expansion from the most recent northern occurrences of this species in the Mexican Pacific coast states.


Se documentó la presencia del viejo de monte (Eira barbara) en los municipios de Tecpán de Galeana y Petatlán, Guerrero, México. Estos registros representan un aumento de su área de distribución al norte en 450-km de los registros más recientes de la especie en la costa del Pacífico Mexicano.

Silver-Haired Bats Associated With Abandoned Mines In Colorado Provide Insights Into Winter Habitat And Roost Use, Lea' R. Bonewell, Mark A. Hayes, Nancy Lamantia-Olson, Elijah Wostl, Kirk W. Navo

Western North American Naturalist

Herein we present the first published records (N = 5) of silver-haired bats (Lasionycteris noctivagans) roosting in abandoned mines in Colorado during winter. The records are based on internal surveys of abandoned mines during the winter period from 2004 to 2008. These noteworthy records provide insights into the winter roosting ecology and habitat use of this species in southwestern Colorado.


Presentamos aquí los primeros registros publicados (N = 5) de murciélagos de pelo plateado (Lasionycteris noctivagans) que se refugian, durante el invierno, en minas abandonadas de Colorado. Los registros están basados en inspecciones internas …

"The Way Of Man Is Not In Himself": Reflections On Humanistic Psychology, Same-Sex Attraction, And Safe Spaces, Richard N. Williams

Issues in Religion and Psychotherapy

No abstract provided.

Child Sexual Abuse And Depression In Late Life For Men: A Population-Based, Longitudinal Analysis, Scott D. Easton, Jooyoung Kong, Matt C. Gregas, Ce Shen, Kevin Shafer

Faculty Publications

Objective: Research investigating long-term effects of childhood sexual abuse (CSA) on mental health for men is vastly underdeveloped. This study strengthened the knowledge base by examining: (a) long-term trajectories of depressive symptoms for men with and without a history of CSA, and (b) moderating effects of social support over time.

Method: We analyzed multiple waves of data from the Wisconsin Longitudinal Study. The sample (N = 2,451) consisted of men with histories of CSA and a stratified, randomly sampled comparison group. Growth curve modeling was employed for analyses.

Results: After controlling for demographic, parental, and health factors, men with …

Landscape Movements By Two Species Of Migratory Nectar-Feeding Bats (Leptonycteris) In A Northern Area Of Seasonal Sympatry, Michael A. Bogan, Paul Cryan, Christa D. Weise, Ernest W. Valdez

Western North American Naturalist

Animals often migrate to exploit seasonally ephemeral food. Three species of nectar-feeding phyllostomid bats migrate north from Mexico into deserts of the United States each spring and summer to feed on blooms of columnar cactus and century plants (Agave spp.). However, the habitat needs of these important desert pollinators are poorly understood. We followed the nighttime movements of 2 species of long-nosed bats (Leptonycteris yerbabuenae and L. nivalis) in an area of late-summer sympatry at the northern edges of their migratory ranges. We radio-tracked bats in extreme southwestern New Mexico during 22 nights over 2 summers and …

Responses Of Small Mammal Communities To Pinyon-Juniper Habitat Treatments, Mark E. Peterson, Cynthia E. Rebar, Karen S. Eisenhart, Denise I. Stetson

Western North American Naturalist

Small mammals should be considered in wildlife management decisions because they are an important component of ecosystems. We examined small mammal population abundances (N) on 4 habitat treatment types in Colorado pinyon pine (Pinus edulis)–Utah juniper ( Juniperus osteosperma) woodlands on the Uncompahgre Plateau, Montrose, Colorado. We trapped small mammals in Sherman live traps on 4 habitat treatment types—including 2 types of management treatments (chaining, roller chop), sites with high drought-related mortality of pinyon pine, and sites of mature pinyon-juniper (PJ) woodland—on 3 mesas. We modeled detection probability of deer mice (Peromyscus maniculatus) …

Religion And Esotericism Among Students: A Crosscultural Comparative Study, Franz Höllinger, Timothy B. Smith

Faculty Publications

Analyzing the results of a study on religious and esoteric beliefs and practice among university students from five European and five American countries, we found that the level of religiousness of students depends very much on their cultural environment: the level of religiosity and esoteric beliefs is significantly higher among North- and South-American students than among European students. On the other hand, Asian spiritual techniques and esoteric methods of healing are practiced more frequently by students in North-Western European countries. In the second part of the paper, we examine the relationship between academic discipline and religious worldviews. According to our …

Positive Parenting Of Children With Developmental Disabilities: A Meta-Analysis, Tina Taylor, Timothy B. Smith, Byran B. Korth, Susanne Olsen Roper, Barbara Mandleco

Faculty Publications

Although a large body of literature exists supporting the relationship between positive parenting and child outcomes for typically developing children, there are reasons to analyze separately the relevant literature specific to children with developmental disabilities. However, that literature has not been synthesized in any systematic review. This study examined the association between positive parenting attributes and outcomes of young children with developmental disabilities through meta-analytic aggregation of effect sizes across 14 studies including 576 participants. The random effects weighted average effect size was r = .22 (SE = .06, p < .001), indicative of a moderate association between positive parenting attributes and child outcomes. Publication bias did not appear to be a substantial threat to the results. There was a trend for studies with more mature parents to have effect sizes of higher magnitude than studies with young parents. The results provide support for efforts to evaluate and promote effective parenting skills when providing services for young children with disabilities.

Elevated Expression Of Hypoxanthine Guanine Phosphoribosyltransferase Within Malignant Tissue, Michelle H. Townsend, Abigail M. Felsted, Zachary E. Ence, Stephen R. Piccolo, Richard A. Robison, Kim L. O'Neill

Faculty Publications

Hypoxanthine Guanine Phosphoribosyltransferase (HPRT) is a housekeeping enzyme involved in the purine synthesis of guanine and inosine in the salvage pathway. While other salvage pathway enzymes, such as TK1, have been established as biomarkers for both cancer cell proliferation and cancer development, little research been done to evaluate whether HPRT has the same potential as a cancer biomarker. We designed this study to determine if HPRT has value as an identifier of malignancy within the most common types of cancer. We utilized histological samples from lung, colon, prostate, and breast cancer with additional normal tissue to evaluate whether there was …

Super Science Infographics: Life Science Through Infographics, Ariel Woodbury

Children's Book and Media Review

Do you have what it takes to be a life scientist? This book introduces many of the main concepts such as evolution, what defines life, fossils, types of life, DNA, cell reproduction, food webs, and more. In addition to the general topics, Life Science Through Infographics includes interesting statistics and fun facts throughout the book.

Rattlesnake Nuisance Removals And Urban Expansion In Phoenix, Arizona, Steven L. Pitts, Bryan D. Hughes, Ivana Mali

Western North American Naturalist

Urbanization can have significant consequences on local wildlife. While some species can thrive in urban environments, others are often seen as nuisance animals and therefore are either killed by landowners or removed by professionals. Snakes, especially rattlesnakes, represent one such taxon. Here, we analyzed rattlesnake removal data from the city of Phoenix, Arizona, USA, to determine whether the removal data directly correlates with urban expansion. Between 2011 and 2014, over 500 rattlesnakes and over 300 non-rattlesnakes were removed by professionals, with significant removal clusters in the northern Phoenix metropolis. Land cover change analyses showed that all removal sites experienced dramatic …

Improved Single Molecule Detection Platform Using A Buried Arrow Design, Thomas Allen Wall

Theses and Dissertations

As the microelectronics industry pushes microfabrication processes further, the lab-on-a-chip field has continued to piggy-back off the industry's fabrication capabilities with the goal of producing total chemical and biological systems on small chip-size platforms. One important function of such systems is the ability to perform single molecule detection. There are currently many methods being researched for performing single molecule detection, both macro and micro in scale. This dissertation focuses on an optofluidic, lab-on-a-chip platform called the ARROW biosensor, which possesses several advantages over macro-scale single molecule detection platforms. These advantages include an amplification-free detection scheme, cheap parallel fabrication techniques, rapid …

To See For Herself: Maria Sibylla Merian’S Research Journey To Suriname: 1699-1701, Catherine Grimm

Resources

No abstract provided.

Comparative Trends In Log Populations In Northern Arizona Mixed-Conifer And Ponderosa Pine Forests Following Severe Drought, Joseph L. Ganey, Scott C. Vojta

Western North American Naturalist

Logs provide an important form of coarse woody debris in forest systems, contributing to numerous ecological processes and affecting wildlife habitat and fuel complexes. Despite this, little information is available on the dynamics of log populations in southwestern ponderosa pine (Pinus ponderosa) and especially mixed-conifer forests. A recent episode of elevated tree mortality in these forest types in northern Arizona caused a pulse in log inputs as dead trees broke and fell. We documented changes in these log populations from 2004 to 2009 in an earlier paper. Here, we extended that work to evaluate changes in log abundance …

What To Expect When You're Expecting Hatchlings: A Guide For Crocodilian Parents, Aylea Stephens

Children's Book and Media Review

No abstract provided.

The Role Of The Therapeutic Alliance On The Successful Outcome Of Transfers In Marriage And Family Therapy Cases, Melanie Louise Cox

Theses and Dissertations

The transfer of cases is common in the practice of Marriage and Family Therapy (MFT). This is especially true in training clinics, where student interns regularly graduate and transfer their cases to students still in the program. Although some research has examined the effect of transferring cases of individual psychotherapy on the success of therapy outcome, little research has examined transfer cases in MFT settings. The transfer process can be conceptualized as a rupture in the therapeutic alliance. From this perspective, a strong therapeutic alliance may mitigate the negative impact of the rupture. Consequently, it was hypothesized that a strong …

Electrokinetically Operated Integrated Microfluidic Devices For Preterm Birth Biomarker Analysis, Mukul Sonker

Theses and Dissertations

Microfluidics is a vibrant and expanding field that has the potential for solving many analytical challenges. Microfluidics shows promise to provide rapid, inexpensive, efficient, and portable diagnostic solutions that can be used in resource-limited settings. Microfluidic devices have gained immense interest as diagnostic tools for various diseases through biomarker analysis. My dissertation work focuses on developing electrokinetically operated integrated microfluidic devices for the analysis of biomarkers indicative of preterm birth risk. Preterm birth (PTB), a birth prior to 37 weeks of gestation, is the most common complication of pregnancy and the leading cause of neonatal deaths and newborn illnesses. In …

Characterizing The Fate And Mobility Of Phosphorus In Utah Lake Sediments, Matthew Chambers Randall

Theses and Dissertations

An increasing number of lakes worldwide are impacted by eutrophication and harmful algal blooms due to nutrient inputs. Utah Lake is a unique eutrophic freshwater lake that is naturally shallow, turbid, and alkaline with high dissolved oxygen levels. Recently, the Utah Division of Water Quality has proposed a new limitation of phosphorus (P) loading to Utah Lake from wastewater treatment plants in an effort to mitigate eutrophication. However, reducing external P loads may not lead to immediate improvements in water quality due to the legacy pool of nutrients in lake sediments. The purpose of this study was to characterize the …

The Effect Of Cocoa Flavanols On Β-Cell Mass And Function, Thomas John Rowley

Theses and Dissertations

A hallmark of type 2 diabetes (T2D) is β-cell dysfunction and the eventual loss of functional β-cell mass. Therefore, mechanisms that improve or preserve β-cell function could be used to improve the quality of life of individuals with T2D. Studies have shown that monomeric, oligomeric and polymeric cocoa flavanols have different effects on obesity, insulin resistance and glucose tolerance. We hypothesized that these cocoa flavanols may have beneficial effects on β-cell function. INS-1 832/13 derived β-cells and primary rat islets cultured with a monomeric catechin-rich cocoa flavanol fraction demonstrated enhanced glucose-stimulated insulin secretion, while cells cultured with total cocoa extract, …

Cell-Free Synthesis Of Proteins With Unnatural Amino Acids: Exploring Fitness Landscapes, Engineering Membrane Proteins And Expanding The Genetic Code, Song Min Schinn

Theses and Dissertations

Unnatural amino acids (uAA) expand the structural and functional possibilities of proteins. Numerous previous studies have demonstrated uAA as a powerful tool for protein engineering, but challenges also remain. Three notable such challenges include: (1) the fitness of uAA-incorporated proteins are difficult to predict and time-consuming to screen with conventional methods, (2) uAA incorporation in difficult-to-express proteins (e.g. membrane proteins such as G-protein coupled receptors) remain challenging, and (3) the incorporation of multiple types of uAA are still limited. In response, we pose cell-free protein synthesis (CFPS), a rapid and versatile in vitro expression system, as a platform to explore …

Electrophilic Catalysis Using Heterobimetallic Complexes, Whitney Kaye Walker

Theses and Dissertations

Conventional ligand design in transition metal catalysis capitalizes on the ability of phosphorous, nitrogen, carbon, oxygen, and sulfur-based donors to modify the steric and electronic properties of a reactive metal center. Heterobimetallic transition metal complexes that contain a dative metal-metal bond provide a unique approach to ligand design where the reactivity of the metal center can be modified by metal-metal electronic communication. Our laboratory is interested in using the unique properties of heterobimetallic complexes to address significant limitations in current transition metal catalysis. My PhD work has focused on the ability of early/late transition metal heterobimetallic complexes to facilitate catalysis …

Space Use, Resource Selection, And Survival Of Reintroduced Bighorn Sheep, Rusty Wade Robinson

Theses and Dissertations

Successful management of bighorn sheep depends on understanding the mechanisms responsible for population growth or decline, habitat selection, and utilization distribution after translocations. We studied a declining population of desert bighorn sheep in the North San Rafael Swell, Utah to determine birthdates of neonates, demographics, limiting factors, population size, probable cause of death, production, and survival. We documented 19 mortalities attributed to a variety of causes including cougar predation (n = 10, 53%), bluetongue virus (n = 2, 11%), reproductive complications (n = 2, 11%), hunter harvest (n = 1, 5%), and unknown (n = 4, 21%). Annual survival of …

Microwave-Promoted Iminyl Radical Cyclizations For The Synthesis Of Azaheterocycles And The Total Synthesis Of Yaku'amide A, Yu Cai

Theses and Dissertations

Two different research projects are described in this dissertation. The first one focuses on microwave-promoted iminyl radical cyclization for the formation of azaheterocycles which are embedded within numerous pharmaceuticals and biologically active natural products (such as clindamycin, eletriptan, moxiflaxin, etc.). We are quite interested in this project because of the significance of nitrogen-containing heterocycles as pharmaceuticals and organocatalysts combined with the need for safe, simple, and economical means of constructing them. We have successfully developed an efficient one-step synthesis of 2-acylpyrroles and diastereoselective dihydropyrroles from readily available oxime ether substrates. This remarkably efficient and environmentally friendly methodology should be useful …

Post-Translational Regulation Of Superoxide Dismutase 1 (Sod1): The Effect Of K122 Acylation On Sod1'S Metabolic Activity, Courtney Jean Banks

Theses and Dissertations

Many mutations in superoxide dismutase 1 (SOD1) cause destabilization and misfolding of the protein and are implicated in amyotrophic lateral sclerosis. Likewise, a few post-translational modifications (PTMs) on SOD1 have been shown to cause the same phenotype. However, relatively few PTMs on SOD1 have been studied in depth and, in particular, very few studies have demonstrated how these PTMs affect SOD1's various biological roles. SOD1 is traditionally known for its role in reactive oxygen species (ROS)-scavenging but has also been found to have a few other biological roles, including transcription factor activity to promote genomic stability, preservation of cytoskeletal activity, …

Mri T2 Signal Changes Indicate Tau Pathophysiology In A Murine Alzheimer's Disease Model, Rajan Deep Adhikari

Theses and Dissertations

Pathogenesis, diagnosis and treatment, the essential domains in medical practice, seem helpless to address Alzheimer's disease (AD). With a huge mortality rate, it is looming and threatening the socioeconomic barrier. Despite many different studies, the pathogenesis of AD remains inconclusive. However, growing numbers of studies suggest oxidative stress to contribute to the initiation and progression of AD. We propose an iron hypothesis: iron mediated oxidative damage by reactive oxygen species (ROS), which induces protective roles of amyloid beta and hyper-phosphorylated tau (HP-tau) to sequester iron and limit the disease. We propose to study such mechanism using transgenic mice models for …

When To Wed? A Closer Examination Of The Association Between Age Of Marriage And Marital Quality, Kaylee Shron Corbridge

Theses and Dissertations

With the rising age of marriage and previous research failing to address a more detailed look at more descriptive measures of satisfaction, the current study examined the association between age of first marriage and marital stability, satisfaction, sexual satisfaction and frequency, effective communication, conflict, and problem areas. Results from a sample of 470 participants who completed the RELATE Questionnaire indicated that across the board, those who married from ages 20-24 had better marital outcomes than those who delayed marriage until their thirties and beyond. These results fit a possible theory of explanation that when it comes to age of marriage, …

Physiological Effects Of Pathogen And Herbivore Risks Encountered By Quaking Aspen, Anson Clark Call

Theses and Dissertations

Quaking aspen (Populus tremuloides) is the most widely distributed tree in North America (Lindroth and St Clair 2013), and a keystone species in our western montane forests (Worrall et al. 2015). Aspen has become a model organism for studies of genetics and physiology in woody plants (Bradshaw et al. 2000, Taylor 2002). Aspen is also economicallyimportant (Worrall et al. 2015) – wood is harvested for various uses, its scenic beauty helps sustain the tourism economy in many areas, and it has recently been studied as a possible source of biofuel (Sannigrahi et al. 2010). Aspen is also a …

Relationship Between Pectoralis Minor Length, Subacromial Space, And Pain In Swimmers And Overhead Athletes, Erika Jaci Richards

Theses and Dissertations

Introduction (Context): The purpose of this study was to measure and correlate pectoralis minor length (PML) and acromiohumeral distance (AHD) in male and female collegiate swimmers, overhead athletes, and a control group. Methods: Participants underwent assessment of pain related to impingement syndrome with special tests (painful arc, external rotation resistance, empty can, and Neer's impingement test), as well as range of motion, measurement of PML, and measurement of subacromial space via ultrasound. Design: Cross-sectional, correlational study. Setting: University modalities laboratory. Participants: 60 healthy subjects (20 swimmers, 20 overhead athletes, 20 controls, age = 21.5 ± 2.4 years; height = 178.7 …

Methods For Sampling Density And Basal Area Of Multi-Trunked Trees: Juniperus Osteosperma In Pinyon-Juniper Vegetation, John L. Vankat

Western North American Naturalist

Sampling the density and basal area of trees is fundamental to quantitatively characterizing forests and woodlands. Commonly used sampling methods are well-suited for trees with single trunks, but are these methods also suitable for sampling multi-trunked trees? This question is especially important where multi-trunked trees are common, as is the case for Utah juniper ( Juniperus osteosperma, JUOS), a codominant of large areas of pinyon-juniper vegetation in western North America. This study addresses the question of suitability by comparing 3 methods for sampling JUOS. The Dbase Method has been commonly used, and it focuses on the bases of trees for …

Front Matter, Vol. 77 No. 2

Western North American Naturalist

No abstract provided.