Digital Commons Network^™

Demographic Modeling Of Conservation Strategies For The Yosemite Toad (Anaxyrus Canorus), Corrina Rebecca Kamoroff

Cal Poly Humboldt theses and projects

The Yosemite toad (Anaxyrus canorus) is an anuran species endemic to the Sierra Nevada in California that, like many amphibians globally, has suffered population declines. The documented decline in A. canorus populations across their historic range highlights the need for an effective management strategy to protect the species from future extirpation. For this study, I estimated survival rates of A. canorus using a Cormack-Jolly-Seber model populated with data from a demographic study. I then used a female-only post-birth pulse stochastic Lefkovitch matrix model using vital rates I estimated and from the literature to simulate the effect of different …

Representation Of Race And Ethnicity In Counseling And Counseling Psychology Journals, Jared M. Hawkins, Roy A. Bean, Timothy B. Smith, Jonathan G. Sandberg

Faculty Publications

Whereas previous literature reviews have concluded that people of color are underrepresented in psychological literature, the fields of counseling and counseling psychology have taken a clear affirmative stance with respect to human diversity. This study sought to evaluate the representation of people of color in four key journals across the 2000-2019 timespan: The Counseling Psychologist, Journal of Counseling Psychology, Journal of Counseling & Development, and Counselling Psychology Quarterly. Journal articles were coded for several variables, including focus on racial/ethnic minority (REM) groups and article content topics. Results indicated that 757 (26.3%) of the articles were coded REM-focused. Of …

Hormonal Medications And Partner Odor Preferences, Jeffrey Lee Frederick

Cal Poly Humboldt theses and projects

The ability to recognize kin through the olfactory sense has important survival and evolutionary implications when choosing mates. Failing to recognize kin when making a choice of whom to mate with can lead to an increase in detrimental genetic outcomes in offspring. Previous studies have indicated that normally ovulating heterosexual women and men prefer the body odor of those with dissimilar immune systems than those with similar immune systems. The use of hormonal contraceptives has shown a preference for similar immune system odors. The current study examines whether the use of hormonal medications predicts preference for body odor. Importantly, this …

The Effect Of Brain Breaks On Student Outcomes Of School-Aged Children In K-12 Classrooms: A Meta-Analysis, Teron H. Schaeffer

Cal Poly Humboldt theses and projects

BACKGROUND: Integrated physical activity in the classroom has been shown to affect K-12 students’ development positively. Students of all abilities benefit from multimodality learning. PURPOSE: This study investigates the relationship between classroom brain breaks and school-aged students' classroom behaviors. METHODS: The Meta-analysis search process consisted of 3 Phases: (1) Screen the titles, (2) Screen the abstracts, and (3) Retrieve the Full Text. Literature searches were conducted in eight electronic academic journal databases: SPORTDiscus, PsycINFO, PsycARTICLES, Cochrane Database, Web of Science/Web of Knowledge, ProQuest, Child Development and Adolescent Studies, and ERIC. Students (N) are enrolled in schools serving students from kindergarten …

Do People With Apraxia Of Speech And Aphasia Improve Or Worsen Across Repeated Sequential Word Trials?, Tyson G. Harmon, Adam Jacks, Katarina L. Haley, Jessica D. Richardson, Elizabeth H. Lacey, Peter Turkeltaub

Faculty Publications

Purpose:

During motor speech examinations for suspected apraxia of speech (AOS), clients are routinely asked to repeat words several times sequentially. The purpose of this study was to understand the task in terms of the relationship among consecutive attempts. We asked to what extent phonemic accuracy changes across trials and whether the change is predicted by AOS diagnosis and sound production severity.

Method:

One hundred thirty-three participants were assigned to four diagnostic groups based on quantitative metrics (aphasia plus AOS, aphasia-only, and aphasia with two borderline speech profiles). Each participant produced four multisyllabic words 5 times consecutively. These productions were …

Mazes In Spanish-English Dual Language Learners After Language Enrichment: A Case Study, Casey L. Taliancich-Klinger, Connie Summers, Kai J. Greene

Faculty Publications

ABSTRACTThe number of Spanish-English dual language learners (DLLs) in the United States continues toincrease every year. In the absence of developmental language norms for DLLs it is importantto learn more about typical language production characteristics to distinguish typical fromatypical language characteristics. An area of language production with conflicting results inthe literature is the production of mazes. Mazes are interruptions in the forward flow oflanguage in the form of interjections, repairs or revisions of words and phrases. At elevatedrates, mazes may interrupt the communication process. A common practice in classroomsettings is to provide support for DLLs through small group activities such …

Deconstructing Narratives About Artistic Mastery In Art Education, Mark Graham

Faculty Publications

A recurring challenge for art educators is how to include Black voices within the art curriculum. This challenge seems ever more relevant as a pandemic underlined the inequalities and injustices within our culture and society. A critical question for many White visual arts educators is: How do I, as a White educator, bring important issues of race, privilege, ideology, gender, and anti-racism into the art classroom? How can I help students to understand Whiteness as a cultural text and set about destabilizing White identity? How does one make space for an antiracist pedagogy? One way to begin conversations about these …

Fremont Smoke Mixtures: Botanical Analyses Of Pipes From Wolf Village, Goshen, Utah, Michael T. Searcy, Hannah Stefffensen, Scott Ure

Faculty Publications

Over several field seasons, ceramic and stone pipes were recovered from the Fremont site of Wolf Village (AD 1000-1100). Nine of the more complete pipes included residue and burned dottle that were analyzed for macrobotanical and microbotanical remains. Three were subjected to FTIR. These analyses represent the first Fremont pipes ever analyzed for botanical remains, and the results reported in this paper provide conclusions regarding possible smoke mixtures used by the Fremont. Contents of the pipes included remains of tobacco, plants from the Amaranthaceae family, maize fragments, grasses, and various fuel woods.

Investigating Seed Maturation And Mortality: A Mechanism For Post-Fire Regeneration In Non-Serotinous Conifers, Madeleine A. Lopez

Cal Poly Humboldt theses and projects

Climate warming and associated dry conditions are contributing to increased fire frequency, severity, and size, for many regions in western North America. These changes in fire activity have prompted concern over the long-term persistence of some conifer species, specifically those not adapted to withstand high-severity fire. However, regeneration of non-serotinous conifer species is possible if the timing of fire occurs following seed maturation, and within a heat range that seeds can withstand, in a regenerative mechanism termed “facultative serotiny.” To address this mechanism, I determined the timing of conifer seed maturation using viability testing for four California conifer species: ponderosa …

Evaluating The Use Of Barn Owl Nest Boxes For Rodent Pest Control In Winegrape Vineyards In Napa Valley, Ashley N. Hansen

Cal Poly Humboldt theses and projects

Attracting natural enemies to farms to reduce pests has long been a part of integrated pest management for insects, but knowledge of the impact of raptors on rodents and other vertebrate pests is comparatively sparse. In this study, I compared rodent prey on winegrape vineyards in Napa California with and without occupied barn owl nest boxes. We collected data before the breeding season, when hunting pressure should be light, and again when adult owls were hunting actively to feed their chicks. I used the open-hole method to quantify an index of gopher activity, and Sherman live traps to estimate the …

Surveying Levels Of Staff Burnout Among Applied Behavior Analysis Practitioners, Marissa Howell

Cal Poly Humboldt theses and projects

Applied Behavior Analysis (ABA) practitioners engage in highly demanding work duties from collaborating with schools and families and navigating funding sources to direct work with clients. Therefore, burnout is a prevalent issue in this field. However, it is infrequently studied in the literature in any of its components, including risk factors, overall levels of burnout, or means to mitigate its effects. The aim of the present study was to survey the levels of burnout among ABA practitioners in Northern California and attempt to identify higher levels of weekly engagement in self-care behaviors as one component in lower burnout scores. The …

Johnson V. M'Intosh: Christianity, Genocide, And The Dispossession Of Indigenous Peoples, Cynthia J. Boshell

Cal Poly Humboldt theses and projects

Using hermeneutical methodology, this paper examines some of the legal fictions that form the foundation of Federal Indian Law. The text of the U.S. Supreme Court’s 1823 Johnson v. M’Intosh opinion is evaluated through the lens of the Convention on the Prevention and Punishment of the Crime of Genocide to determine the extent to which the Supreme Court incorporated genocidal principles into United States common law. The genealogy of M’Intosh is examined to identify influences that are not fully apparent on the face of the case. International jurisprudential interpretations of the legal definition of genocide are summarized and used as …

The Impact Of A Teacher-Developed Physical Fitness Program On The Self-Perception And Basketball Skills Of Two High School Students, Melaina Valdez

Cal Poly Humboldt theses and projects

PURPOSE: This study has two purposes: (a) to determine the effect of a teacher-developed physical fitness program on the performance of specific participant goals for the game of basketball and (b) to determine the impact of this same program on the overall perception of the participants amongst their peers when participating in the game of basketball. METHODS: The participants in this study included two high school males. Participant 1 had a diagnosis of attention deficit hyperactivity disorder (ADHD) and was provided services through a 504 plan. This study occurred over a 5-week period, including a 5-week intervention, with the pre …

Modulation Of Polyamines To Elucidate Function Within Osteogenesis Of Mesenchymal Stromal Cells, Amin S. Cressman

Cal Poly Humboldt theses and projects

Snyder-Robinson Syndrome (SRS), an X-linked intellectual disability that arises in children, exhibits debilitating phenotypes like severe osteoporosis. These patients demonstrate an inability to produce mineralized new bone in comparison to the rate at which bone is resorbed, thus leading to weaker skeletal structure and atraumatic fractures. The known cause of SRS is due to loss-of-function mutations within the gene that encodes Spermine Synthase (SMS). Loss of SMS enzymatic activity, which catalyzes the conversion of polyamines spermidine into spermine, demonstrates an increase in the spermidine/spermine ratio in all documented cases of this disorder. The involvement of polyamines in osteogenesis is still …

Geographic And Seasonal Variation Of Flying Squirrel Vocalizations In California, Travis A. Farwell

Cal Poly Humboldt theses and projects

Advancements in bioacoustics field studies have further elucidated spatial, temporal, and behavioral aspects of otherwise-cryptic species, as well as offering insights into species communication. The discovery of high-frequency vocalizations in North American flying squirrels in particular has allowed researchers to use ultrasonic acoustic recorders to detect these cryptic species in the wild. Investigations into vocalizations of northern flying squirrels (Glaucomys sabrinus) and southern flying squirrels (G. volans) have highlighted call type variation between species and the potential use of recorders as a tool to examine vocal activity patterns. However, high-frequency vocalizations had yet to be quantitatively …

Evaluating The Impact Of Video Based Instruction And Immediate Feedback On The Performance Of Three Gross Motor Skills For Participants With Down Syndrome, Alyssa Gadberry

Cal Poly Humboldt theses and projects

The purpose of this study was to evaluate the impact of video based instruction combined with immediate visual feedback on the performance of three different gross motor skills for children with Down Syndrome (DS). The participants in this study are two children with DS. They were selected for this study based upon these qualifying factors: enrolled in a moderate/severe special day class, enrolled in a title one school, have Down syndrome and displayed deficits in gross motor abilities based upon the administration of the Total Gross Motor Development-3 (TGMD-3) assessment. The research design is a multiple baseline design where three …

Retention And Performance During Covid-19: Prosociality Perception, Social Isolation, And Online Engagement, Ashli L M Schick

Cal Poly Humboldt theses and projects

The experiences of university students impacted by COVID-19 and circumstances surrounding their experiences, help inform the future of higher education in the United States. In the uncertain and rapidly evolving higher education system, understanding retention patterns of students has become increasingly complex. This study examined how self-perceived prosociality and self-perceived social isolation among university students in an online education environment relate to the intention to re-enroll in university and their academic achievement (Grade Point Average; GPA). Ninety-seven university and community college students completed an online survey. Based on previous literature, we expected women to report higher prosociality perceptions than men …

The Effects Of Video Modeling And Video Feedback On Object Control Skills For Individuals With Autism Spectrum Disorder, Miguel Pelayo

Cal Poly Humboldt theses and projects

The purpose of this study was to analyze the impact of video modeling combined with immediate video feedback on the performance of object control skills used in the game of basketball for students with autism spectrum disorder (ASD). Two male students aged 12 and 13, who had a previous diagnosis of ASD and attended a middle school in Northern California were recruited for this study. A multiple baseline across behaviors single case design was used to determine the impact of the interventions on the performance of the basketball skills. Results from this study suggest that the combined use of video …

Long-Term Agricultural Practice Effects On Carbon And Nitrogen Isotopes Of Soil Organic Matter Fractions, Johan Desrochers, Kristofor R. Brye, Erik D. Pollock

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Understanding the effects of long-term traditional and alternative agricultural management practice effects on carbon (C) and nitrogen (N) cycling and storage within particulate organic matter (POM) and light fractions (LF) within various soil aggregate-size classes can be illuminated by isotopic ¹³C/¹²C (δ¹³C) and ¹⁵N/¹⁴N (δ¹⁵N) differences. The objective of this study was to evaluate the effects of residue level, residue burning, tillage, and irrigation on δ¹³C and δ¹⁵N values of the bulk-soil, macro- (>250 μm) and micro-aggregate-(53–250 μm), coarse- (>250 μm), and fine- (53–250 …

Rice Tolerance To Multiple Applications Of Florpyrauxifen-Benzyl Alone And Followed By Benzobicyclon, James Winston Beesinger, Jason K. Norsworthy, Thomas R. Butts, Trenton Roberts

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Varying levels of sensitivity to florpyrauxifen-benzyl and benzobicyclon applications among rice (Oryza sativa L.) cultivars have been observed. The safe use of florpyrauxifen-benzyl and benzobicyclon in the same herbicide program could provide broad-spectrum weed control and delay resistance in weed species. Two experiments were conducted in 2019 and 2020 near Stuttgart, AR, to test cultivars' sensitivity to multiple rates of florpyrauxifen-benzyl and applications of florpyrauxifen-benzyl followed by benzobicyclon. The first experiment was designed to determine the sensitivity of the rice cultivars `XP753', 'CL XL745', 'Gemini 214CL', 'Titan', and 'Diamond' to applications of florpyrauxifen-benzyl at 0.03 and 0.06 lb acid …

Minimum Dataset And Metadata Guidelines For Soil-Test Correlation And Calibration Research, Nathan A. Slaton, Sarah E. Lyons, Deanna L. Osmond, Sylvie M. Brouder, Steve W. Culman, Gerson L. Drescher, Luciano C. Gatiboni, John Hoben, Peter J.A. Kleinman, Joshua M. Mcgrath, Robert O. Miller, Austin Pearce, Amy L. Shober, John T. Spargo, Jeff J. Volenec

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Soil-test correlation and calibration data are essential to modern agriculture, and their continued relevance is underscored by the expansion of precision farming and the persistence of sustainable soil management priorities. In support of transparent, science-based fertilizer recommendations, we seek to establish a core set of required and recommended information for soil-test P and K correlation and calibration studies, a minimum dataset, building on previous research. The Fertilizer Recommendation Support Tool (FRST) project team and collaborators are developing a national database that will support a soil-test-based nutrient management decision aid tool. The FRST team includes over 80 scientists from 37 land-grant …

Increase Student Engagement In Online Writing Environments, Jonathan Balzotti, Jason K. Mcdonald, Kevin Haws, Amy Allen Rogers, Matthew J. Baker

Faculty Publications

This case study explores a type of educational simulation, an alternative reality game we call a playable case study (PCS), and how its use influenced student engagement in an online writing classroom. The goal of the simulation was to help students create professional communication artifacts and experience real-world professional communication situations. This article reports the effectiveness of the playable case study as a tool specifically for online writing instruction (OWI). The context of our research was a PCS called Microcore. Acting as interns for a company, students are asked to investigate a serious problem that occurs and present a solution …

How Excellent Is Thy Lovingkindness: The Gospel Principle Of Hesed, Dan Belnap, Daniel L. Belnap

Faculty Publications

The concept of hesed (pronounced khesed) ¹ is unfamiliar to most Bible readers. This is partly due to the fact that it is a Hebrew word found in the Old Testament; thus, we will never come across the word hesed anywhere in our King James Version (KJV). Moreover, the term is difficult to translate, the KJV providing no less than fifteen different terms to signify the presence of hesed in the text, the most common being mercy, kindness, and lovingkindness.² Yet the principle of hesed may be one of the most important doctrinal concepts in the Old Testament, …

Aging In Nigeria: A Growing Population Of Older Adults Requires The Implementation Of National Aging Policies, Kingsley Chima Mbam, Cal J. Halvorsen, Uzoma Odera Okoye

Harvey A. Friedman Center for Aging

While the continent of Africa currently has the lowest share of adults aged 60 and older in its population among all world regions, the total number of older Africans is projected to triple between 2020 and 2050. Nigeria—Africa’s leading economy and most populated country—has the highest number of older people in the continent and the 19th highest across the globe, with the population of Nigerians aged 65 and older projected to nearly triple by 2050. However, the increase in older Nigerians is occurring against the backdrop of extreme poverty, unsolved development problems, socioeconomic inequality, the HIV/AIDS epidemic, and a decline …

A General Coupling Methodology For Unsteady Aerostructural Optimization With Analytic Derivatives, Taylor Mcdonnell, Adam Cardoza, Denis-Gabriel Caprace, Andrew Ning

Faculty Publications

Multidisciplinary design optimization offers a comprehensive approach for designing complex aerostructural systems such as wind turbines. Gradient-based multidisciplinary design optimization can be used to optimize complex systems using large numbers of design variables. However, the convergence of gradient-based optimization methods to an optimal solution is highly dependent on the accuracy of the provided derivatives. In this paper, we propose a general method for creating unsteady coupled systems for steady-state, eigenvalue, and time-domain analyses. We then describe how highly accurate derivatives may be obtained from these analyses using a combination of automatic differentiation and analytic methods (including the unsteady adjoint). Finally, …

The Sticks Of Judah And Joseph: Reflections On Defending The Kingdom, Joseph M. Spencer

Faculty Publications

I wish to pursue two tasks simultaneously in this essay. First, in line with its title, I will address a very old matter of interpretation. I aim to explain as definitively as possible how to make sense of the relationship between Ezekiel 37:15–19, with its talk of the sticks of Judah and Joseph, and the claims of the Restoration, which include somehow connecting the stick of Joseph to the Book of Mormon. Second, in line with the subtitle of this essay, I wish to draw a crucial lesson from the history of how Latter-day Saints have dealt with this issue …

Understanding Spiritual Well-Being Among Critical Incident Stress Management-Trained First Responders, Harvey Burnett

Faculty Publications

No abstract provided.

When Cpr Is Needed, Robert E. Zdor

Faculty Publications

Column: Practical Pointers

Environmental Corporate Social Responsibility And Pro-Environmental Behavior: The Effect Of Green Shared Vision And Personal Ties, Badar Latif, Nuwan Gunarathne, James Gaskin, Tze San Ong, Mohsin Ali

Faculty Publications

Environmental corporate social responsibility (ECSR) has recently gained traction among academics, practitioners, and policymakers as a critical driver of sustainable development. However, the impact of ECSR on actual pro-environmental behavior remains unclear in the literature, particularly in the context of developing countries. Grounded in the social exchange and social network theories, this study examines the effect of ECSR on proenvironmental behavior via the mediation of a green shared vision and the moderation of two types of personal ties (business ties and political ties). Data was collected and analyzed from 375 manufacturing sector employees in Pakistan at two time periods. The …

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 …