Digital Commons Network^™

From Screen To Summit: An Investigation Of Claims About Social Media Use For Outdoor Recreation Purposes, Theodora M. Doyon

Cal Poly Humboldt theses and projects

Recent increases in visitation to public lands in the U.S. are often attributed to a rise in social media sharing of outdoor spaces, and particularly to the use of geotagging and hashtagging for location sharing. There are conflicting views on the influence of social media on visitation to public lands, including negative perceptions of social media users, and positive perceptions of social media’s potential to spread information to underrepresented and underserved communities. Due to the growing interest in social media use and its effects on outdoor spaces, it is important to understand how social media use correlates with recreational behavior …

One-Way Immersion Education Educación De Inmersión Unidireccional, Angela Renée Rivera

Cal Poly Humboldt theses and projects

Teachers in Spanish immersion schools, schools that teach a majority of English only speakers or in a one-way immersion model, face unique challenges in meeting their students' language and learning needs. The goal of this study is to identify the curriculum and resources teachers in one-way immersion schools use in their classroom to meet these student needs. The basic design of the study includes individual interviews with questions focused on the curriculum and assessment teachers use, the pedagogical practices they implement and the advice they have for other immersion teachers in the field. A qualitative analysis of the data indicates …

"This Is Home:" Pictures, Place Meaning, And Community In The Natural-Amenity-Rich Del Norte County, California, Erik Arndt

Cal Poly Humboldt theses and projects

This study contributes to the existing, yet small, cadre of research using photo elicitation to investigate the place meanings of people living in a natural-amenity-rich area. Ten current and former residents of Del Norte County, California took pictures of and discussed in an interview the people, places, and attributes they found valuable or meaningful about that place. The primary focus of the photos and interviews was how these natural amenities, in particular Jedediah Smith Redwoods State Park, impacted or influenced residents’ place meanings. Three major themes of place meaning were identified from the interviews: Environment-Landscape, Human-Social, and Recreation-Exploration. Each contained …

Effects Of Extreme Behaviors And Outbursts In Kindergarten Classrooms, Christine M. Ng

Cal Poly Humboldt theses and projects

This study explored extreme behaviors and violent outburst in kindergarten classrooms and the affect they had on other students as observed by their teachers. A mixed methods study design was used, and included a survey and interviews. Quantitative data was collected to understand what teachers are experiencing as a group, and qualitative data expanded on those experiences. The data revealed the variety of extreme behaviors exhibited by some students, and the ways other students and staff both in the classroom and at the school site are affected by them. One of the primary findings is that a lot of time …

Age-Specific And Species-Specific Tree Response To Seasonal Drought In Tropical Dry Forests, Emily A. Santos

Cal Poly Humboldt theses and projects

Millions of people live in or depend on ecoregions dominated by Tropical Dry Forests (TDFs), but due to their high accessibility, convenient topography and mild climate conditions their distribution is fragmented with less than 10% of their original extent remaining in many countries. Despite the vast ecosystem services provided by TDFs, including vital water resources in water limited environments, ecohydrological research in this biome has been limited to a small number of short-term investigations. Similar to worldwide trends, the TDF surrounding Bahía de Caráquez (Bahía), Ecuador, has been severely deforested over the past 400 years. The land use history in …

Anaerobic Capacity Measures In Healthy Active Adults Ages 18-29: Normative Reference Values And Differences Between Sex, Dylan E. Roberts

Cal Poly Humboldt theses and projects

The purpose of this study was to develop normative reference values for the modified Anaerobic Speed Test (mAST), an anaerobic capacity test that can be administered and completed on a commercial treadmill. The mAST of 15% grade has been created as one of the only protocols based on the original AST protocol of 20% grade. However, no percentile norms currently exist for this protocol, limiting its usefulness and interpretation of results. This paper presents normative values for active healthy adults ages 18-29, separated by sex. The sample consisted of 276 active healthy volunteers (161 men and 115 women). All mASTs …

Species Distribution Models For Three Deep-Sea Coral And Sponge Taxa In The Southern California Bight, Nissa Kreidler

Cal Poly Humboldt theses and projects

Deep-Sea Coral and Sponge (DSCS) species are signature taxa of deep-water habitats, however understanding the ecological mechanisms that drive their geographic distributions can be difficult to uncover due to the challenges of surveying deep-water ecosystems. A recent study on benthic assemblages in Southern California revealed statistical associations between several DSCS and demersal fishes, many of which are important to management agencies due to commercial or conservation concerns. Maps that predict where these DSCS may occur are needed for the management and protection of these DSCS taxa and the fauna that rely on them for habitat. In this thesis, I develop …

Cuteness As A Prime To Enhance Emotional Recognition, Andrew Diaz

Cal Poly Humboldt theses and projects

The ability to recognize emotional expressions has important implications for survival and cooperation. Failing to recognize emotions indicative of some form of threat (anger, fear, disgust) may be particularly costly given these emotional expressions communicate a potential source of danger in the environment. Previous studies have shown that people tend to recognize threatening emotions faster and more accurately than non-threatening emotions. Infantile characteristics (kindchenschema) readily capture the attention of adults and have been shown to influence a variety of behaviors associated with caretaking; viewing cute stimuli increases behavioral carefulness on various visual and motor tasks. The current study …

Comparing Knee Joint Mechanics Across Phases Of The Menstrual Cycle, Bethany Kilpatrick

Cal Poly Humboldt theses and projects

Anterior cruciate ligament (ACL) injuries are among the most commonly occurring knee injury. Compared to men in the same sports, females are two to eight times at higher risk for ACL injury. Research suggests that hormone fluctuations across the menstrual cycle (MC) play a crucial role in ACL injuries due to their effect on tendons and ligament's mechanical properties. PURPOSE: To examine knee joint laxity during dynamic movements across three-time points of the MC. METHODS: Seven young, healthy females with regular MCs performed three jump-landing tasks (double leg depth jump, single-leg lateral jump, and single-leg forward jump) across the early-follicular, …

Does Pregnancy Enhance Sensitivity To Emotional Displays Of Threat?, Lauren E. Larsen

Cal Poly Humboldt theses and projects

The human face provides us with an abundant amount of social and biological information. It is important for us to be able to recognize emotions quickly and accurately, some emotions may be more important and therefore draw more of our attention than others, specifically “threat-relevant” emotions (fear, disgust, anger). To date few studies have investigated how pregnancy impacts emotion recognition abilities. These studies have shown that women have higher accuracy in encoding emotional expressions signaling threat or harm. To determine if pregnancy increases attentional bias to threat, 43 pregnant women and 45 non-pregnant women (controls) performed an emotion recognition task. …

Assessing Methods For Estimating Biological Sex From Subadult Skeletal Elements, Dorota Zabnicka

Cal Poly Humboldt theses and projects

While methods for estimating the sex of adult skeletons are relatively accurate, these methods are often inconclusive when applied to subadults (non-adults), especially when many secondary sexual characteristics have not fully developed. Furthermore, existing methods for subadults are often tested on samples with relatively homogenous ancestries, calling into question their reliability in more diverse populations. This thesis reviewed techniques for estimating sex in subadult skeletal remains, and the most promising methods were retested on individuals of known sex between ages 3 and 17 years (n=39, 14 males, 25 females) from the Hamann-Todd Osteological Collection. Data collection included measurements of the …

Sediment Yield In Salmon Creek After Decommissioning Logging Roads, Northern Humboldt County, California, Malia S B Gonzales

Cal Poly Humboldt theses and projects

Salmon Creek watershed is located in the Headwaters Forest Reserve in northern California and is known for the ecological value of its old-growth redwood forest, high biodiversity, and sensitive habitat for endangered species. The Bureau of Land Management primarily manages the Reserve. The land-use history of the Upper Salmon Creek watershed includes extensive timber harvest and road development. Watershed restoration in the Upper Salmon Creek watershed started in 2000 with the primary goal for the Reserve to protect and recover ecologic diversity and threatened native species. Since then, of the 23 miles, 13.5 miles of logging roads and 101 stream …

Interview With Marvin Kaiser, Marvin Kaiser, Oona Fisher Campbell

Conflict Resolution Oral Histories

Marvin Kaiser was interviewed by Oona Fisher Campbell on May 15, 2020, in Portland, Oregon. Also participating in the interview are Patricia Schechter and Cleophas Chambliss.

In this interview, Kaiser, who has a background in social work, discusses the structural obstacles in our society that create conflict and emphasizes the role that the university and higher education in general can play as a community public service.

Ethnodance And Identity: Black Students Representing Science Identities In The Making, Mindy J. Chappell, Maria Varelas

Curriculum and Instruction Faculty Publications and Presentations

We explored how arts-based practices, specifically what we define as ethnodance informs the study of science identity. We present a theoretical argument supported by an empirical illustration of how ethnodance offers Black youth with dance identities a medium to narrate evolving science identities, communicating meanings, interactions, and emotions, and to construct identities further as reified artifacts of participating in science classroom communities. The theoretical argument frames dance as an embodied narrative, identity construction as an ongoing process with interactional and affective commitments, and Black Dances as venues of Black bodies’ expressivity of the brilliance, competence, and creativity of Black people. …

Treating Anemia Of Chronic Disease, Sarit Fischer

The Science Journal of the Lander College of Arts and Sciences

Anemia of chronic disease (ACD) is the result of altered iron metabolism, blunted erythropoiesis, and shortened red blood cell survival caused by inflammatory cytokines. Hepcidin plays a key role in anemia of chronic disease by inducing endocytosis of the iron exporter ferroportin. Iron is trapped in enterocytes, hepatocytes, and macrophages, and is unavailable for hemoglobin synthesis. When treating the underlying disease is not an option, or anemia is severe, ACD should be treated. While oral iron supplementation is not suitable for ACD, intravenous iron may be effective. Erythropoiesis stimulating agents are a common approach to treating ACD, but a large …

Full Issue: Volume 14, Number 1, Fall 2020

The Science Journal of the Lander College of Arts and Sciences

Complete .pdf file of Volume 14, number 1 of The Science Journal of the Lander College of Arts and Sciences. Published Fall 2020.

The Professional Responsibility Case For Valid And Nondiscriminatory Bar Exams, Joan W. Howarth

Scholarly Works

Title VII protects against workplace discrimination in part through the scrutiny of employment tests whose results differ based on race, gender, or ethnicity. Such tests are said to have a disparate impact, and their use is illegal unless their validity can be established. Validity means that the test is job-related and measures what it purports to measure. Further, under Title VII, even a valid employment test with a disparate impact could be struck down if less discriminatory alternatives exist.

Licensing tests, including bar exams, have been found to be outside these Title VII protections. But the nondiscrimination values that animate …

Examining The Anomalies, Explaining The Value: Should The Usa Freedom Act’S Metadata Program Be Extended?, Susan Landau, Asaf Lubin

Articles by Maurer Faculty

Edward Snowden’s disclosure of National Security Agency (“NSA”) bulk collection of communications metadata was a highly disturbing shock to the American public. The intelligence community was surprised by the response, as it had largely not anticipated a strong negative public reaction to this surveillance program. Controversy over the bulk metadata collection led to the 2015 passage of the USA FREEDOM Act. The law mandated that the intelligence community would collect the Call Detail Records (“CDR”) from telephone service providers in strictly limited ways, not in bulk, and only under order from the Foreign Intelligence Surveillance Court. The new program initially …

International Lawyers As Disrupters Of Corruption: Business And Human Rights In Africa’S Most Populous Country—Nigeria, Jayanth K. Krishnan

Articles by Maurer Faculty

Be it bribery, embezzlement, or the abuse of public trust, corruption poses a major challenge to global security and democratic governance, along with undermining the rule of law, especially within the Global South. Key to this phenomenon is understanding how lawyers are enabling but also disrupting this epidemic. Unfortunately, the literature on this subject is lacking. This study, therefore, offers a nuanced story of globalization and the complicated role that lawyers play in corruption, by relying on the case study of Nigeria—a crucial Global South market that has the largest population on the African continent. While Nigeria has been able …

Do Blockchain Technologies Make Us Safer? Do Cryptocurrencies Necessarily Make Us Less Safe?, Sarah Jane Hughes

Articles by Maurer Faculty

This essay is based on a presentation made on January 24, 2020 at the invitation of the Texas Journal of International Law and the Strauss Center for National Security at the University of Texas. That presentation focused on the two questions mentioned in the title of this essay – Do Blockchain Technologies Make Us Safer? And Do Cryptocurrencies Necessarily Make Us Less Safe? The essay presents answers to the two questions: “yes” and “probably yes.” This essay begins with some level-setting on different types of blockchain technologies and of cryptocurrencies, and gives some background materials on global and national responses …

Circumventing Standing To Appeal, Ryan W. Scott

Articles by Maurer Faculty

The requirement of standing to sue in federal court is familiar, but the related requirement of standing to appeal within the Article III judiciary is badly undertheorized. The Supreme Court’s opinions suggest (at least) four constitutional rationales. Standing to appeal might serve the same functional purposes as standing to sue, or it might follow from the fact that appeals involve two separate courts, or it might be triggered because the underlying case or controversy has become moot, or because it has reached the point of final judgment.

Compounding the confusion, the requirement of standing to appeal can have troubling consequences …

How To Make A Dead Armadillo: Consumer Contracts And The Perils Of Compromise, Jeffrey W. Stempel

Scholarly Works

The ALI's proposed Restatement of the Law, Consumer Contracts ("RLCC") has managed to alarm both corporate America and consumer advocates, including half the nation's attorneys general. To some extent, the RLCC is yet another victim of the nation's increasing polarization and the rise of partisanship within the legal profession. But the RLCC suffers from self-inflicted wounds through questionable endorsement of problematic case law on contract formation as well as its goal of a well-intentioned but flawed "Grand Bargain" that arguably seized a middle ground disliked, for different reasons, by both consumer and business advocates. The RL CC stepped into this …

Experimenting With A Biologically Plausible Neural Network, Dmitri Murphy

University Honors Theses

We present research on an implementation of a biologically inspired Bayesian Confidence Propagation Neural Network (BCPNN). Based on previous work by Christopher Johansson and Anders Lansner, our implementation seeks to test and understand the various properties of this model. The floating-point implementation we built uses discrete time and bit-vectors as input/output. We found that the column based BCPNN model is able to memorize a decent number of input vectors and is able to restore noisy versions of these vectors with relatively high accuracy. We examine the model’s capacity, noise recovery ability and cross-column connection influence, among other attributes. The clearest …

A Five-Sample Confirmatory Factor Analytic Study Of Burnout-Depression Overlap, Renzo Bianchi, Irvin Sam Schonfeld, Jay Verkuilen

Publications and Research

Objective: It has been asserted that burnout—a condition ascribed to unresolvable job stress—should not be mistaken for a depressive syndrome. In this confirmatory factor analytic study, the validity of this assertion was examined.

Methods: Five samples of employed individuals, recruited in Switzerland and France, were mobilized for this study (N = 3,113). Burnout symptoms were assessed with the Shirom–Melamed Burnout Measure, the Maslach Burnout Inventory (MBI)—General Survey, and the MBI for Educators. Depressive symptoms were measured with the PHQ‐9.

Results: In all five samples, the latent factors pertaining to burnout’s components correlated on average more highly with the latent Depression …

The Querelle Des Clés: An Episode In Francisco Frontera De Valldemosa's Exuberant Life, Antoni Pizà

Publications and Research

In 1858, Francisco Frontera de Valldemosa published a peculiar music theory treatise in Madrid under the title Equinotación ó Nuevo sistema musical de llaves. It has two parts. The first (pp. 11-20) is an explanation of the invention (namely, the reduction of all clefs to only three) detailing the perceived actual need for it (that is, most clefs are unnecessary, and they impede or delay the creativity of the avid music learner). The second part (new pagination, pp. 2-83) is a curious anthology of music in many genres and styles. On the left page of each spread, there is a …

Effect Of Livestock Species On Floral Resources And Pollinators In Low-Diversity Grasslands, Jasmine Antonia Villamarin Cutter

Range Science

Livestock management influences the extent to which grazing lands provide resources for native species. We compared how livestock species – sheep or cattle – affected floral resources and bee and butterfly communities in low-diversity, post-Conservation Reserve Program (CRP) pastures managed with patch-burning. We sampled bees and butterflies three times per season 2017-2019 and counted flowering stems within 1 m of transects. Pastures grazed by sheep had significantly fewer flowers and significantly lower floral richness than cattle pastures. Native bees were three to sixteen times more abundant in cattle pastures compared to sheep. Butterfly communities were similar between grazing treatments, because …

Project Management Assignment Tool Using R And Shiny, Ben Stewart, Hoseok Jung, Moses Rawar

Engineering and Technology Management Student Projects

Linear programs such as the R markdown language play an important role in helping to find an optimized solution in various fields of society. This area extends from the optimal distribution channels of coffee shops, which are closely related to our lives, to very important areas such as the deployment of military forces. Through this paper, we will try to find ways to maximize the efficiency and performance of a company by properly allocating project managers suitable for the projects performed by each company according to their capabilities and the requirements of the projects.

Connecting Offshore Floating Wind To The Western Electricity Grid: Transmission Options Decision Modeling, Bill Henry

Engineering and Technology Management Student Projects

The purpose of this project is to obtain stakeholder views on a range of aspects relating to a proactive planning process to build transmission facilities in coordination with development of floating offshore wind (OSW) in southern Oregon and northern California. In the event that a transmission planning process to examine the potential need to assess and build transmission facilities to connect these wind resource areas is launched at a future date, the results of this study will assist planners by obtaining initial stakeholder views on the breadth of choices that should be considered, and more importantly, provide key insights on …

Educating And Training The Next Generations Of Security Staff In Suicide Risk Assessment In Correctional Settings: Development Of Cultural Competencies, Ashley Christianson

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Cultural competence in suicide risk assessment has become a necessity given the demographic diversity in the U.S. corrections population and the increasing rate of suicidal behavior in jails and prisons. With few exceptions, little attention has been paid to the cultural training of both clinicians and security staff, and the development of cultural competencies in this field. This paper will focus exclusively on examining the case for cultural competence when conducting a suicide risk assessment in a correctional setting. The author reviews factors that are key in the education and training of culturally informed jail-based therapists and corrections officers, including …

Leveraging Technology To Blend Large-Scale Epidemiologic Surveillance With Social And Behavioral Science Methods: Successes, Challenges, And Lessons Learned Implementing The Unite Longitudinal Cohort Study Of Hiv Risk Factors Among Sexual Minority Men In The United States, H. Jonathon Rendina, Ali J. Talan, Nicola F. Tavella, Jonathan Lopez Matos, Ruben H. Jimenez, S. Scott Jones, Brian Salfas, Drew Westmoreland

Publications and Research

The use of digital technologies to conduct large-scale research with limited interaction (i.e., no in-person contact) and objective endpoints (i.e., biological testing) has significant potential for the field of epidemiology, but limited research to date has been published on the successes and challenges of such approaches. We analyzed data from a cohort study of sexual minority men across the United States, collected using digital strategies during a 10-month period from 2017 to 2018. Overall, 113,874 individuals were screened, of whom 26,000 were invited to the study, 10,691 joined the study, and 7,957 completed all enrollment steps, including return of a …