Digital Commons Network^™

Three Essays On The Economics Of Public Libraries, Amir Borges Ferreira Neto

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation explores empirical issues concerning public libraries in the United States. In particular, it analyzes the direct and indirect effects to and from public libraries, on different issues such as charitable donations, labor market outcomes, institutions and technical efficiency. Chapter 1 discusses the economics of public libraries and its relevance. In addition, it provides an outline of the dissertation and its main contribution to the literature. Chapter 2, analyzes the determinants of donations to public libraries testing the crowding effect from government funding of public libraries. I find suggestive results of a crowd in effect with an inverted U …

Aptamer Functionalized Zinc Oxide Field Effect Transistors For Odor Detection, Michael D. Aldridge

Graduate Theses, Dissertations, and Problem Reports (ETD)

Odor detection and identification are complex processes, and tasks that currently only animals do well. There is a pressing need for an electronic nose, or eNose, with good sensitivity, selectivity, and speed that mimics that ability. Food quality control operations, environmental sensing, occupational safety, and the defense sectors all require systems that can rapidly and reliably detect trace levels of volatile organic compounds. The goal of this work is to create a biologically inspired device which can accurately detect and identify odors at concentrations consistent with the most sensitive biological systems.

In order to mimic a natural olfactory system, we …

In Vitro Metabolism Of The Synthetic Cannabinoids Px-1, Px-2, Px-3 And A Comparison Of Their Clearance Rates In Human Liver Microsomes, Travon Cooman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Detection of SCs in body fluids continue to be a challenge because of limited metabolism data, lack of standards and reference mass spectrometry data. In vivo and in vitro experiments help elucidate metabolite markers for novel psychoactive substances and can prompt synthesis of standards to verify proposed metabolites. In this study, metabolism of three SCs N-(1-amino-1-oxo-3-phenylpropan-2-yl)-1-(5-fluoropentyl)-1H-indole-3-carboxamine (PX-1), N-(1-amino-1-oxo-3-phenylpropan-2-yl)-1-(5-fluropentyl)-1H-indazole-3-carboxamide (PX-2), and N-(1-amino-1-oxo-3-phenylpropan-2-yl)-1-(cyclohexylmethyl)-1H-indazole-3-carboxamide (PX-3) were investigated using human liver microsomes. Previous studies showed PX-3 as the most potent CB1 and CB2 receptor agonist.

Half-life and clearance data were acquired using liquid chromatography- tandem mass spectrometry. Metabolite elucidation was performed using liquid chromatography …

Impacts Of Climate Change On Water Balance Components In The Central Appalachian Mountains, Usa, Brandi Anne Gaertner

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research investigated the impact of climate and land cover on water balance components including evapotranspiration and runoff in the mountainous central Appalachian region of the United States. The first studyanalyzed trends in climatologic, hydrologic, and growing season length variables, identified the important variables effecting growing season length changes, and evaluated the influence of a lengthened growing season on increasing evapotranspiration trends. The results showed that growing season length has increased, on average, by ~22 days and evapotranspiration has increased ~12 mm. The second study quantified long-term historical and future climate trends, evaluated water balance sensitivity to change, and quantified …

Material Disease: Agency And Illness In Early American Literature, Mariah Crilley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Material Disease: Agency and Illness in Early American Literature argues that diseases shaped bodies of literature. Drawing on new materialism, disability studies, and the medical humanities, this dissertation argues that diseases were material and literary agents that transformed not only individual bodies and lives but also cultures, history, and even literature. In each chapter, I explore how one disease impacted a particular genre or paradigm: syphilis and the natural history, smallpox and the body politic, yellow fever and the novel, dysentery and sensibility, and malaria and narratives of Western expansion. By emphasizing disease’s material and literary agency, by conjoining the …

On Matching Faces With Temporal Variations Using Representation Learning, Daksha Yadav

Graduate Theses, Dissertations, and Problem Reports (ETD)

Developing automatic face recognition algorithms which are robust to intra-subject variations is a challenging research problem in the computer vision research community. Apart from the well-studied covariates such as pose and expression, temporal variations in the facial appearance also lead to a decline in the performance of face recognition systems. This research focuses on analyzing the temporal variations in facial features due to facial aging, facial plastic surgeries, and prolonged illicit drug abuse. The contributions of this dissertation are fivefold: (i) behavioral and neuroimaging studies are conducted to understand the human perception of faces affected by temporal variations, specifically facial …

Analysis Of User Preference With N95 And Powered Air-Purifying Respirators In A Healthcare Work Environment, Brittany Renee Carver

Graduate Theses, Dissertations, and Problem Reports (ETD)

For those working in the healthcare field, personal protective equipment is vital. Healthcare workers are often first responders when it comes to dealing with patients who are infected or when a disease outbreak occurs. The Occupational Safety and Health Administration (OSHA) requires all healthcare operations to provide employee protection against blood borne pathogens. With the increase of life-threatening disease outbreaks, such as SARS in 2003 and Ebola in 2014, it is of the upmost importance to make sure respirators are best suited for users and acceptable for long term use. It has been shown through previous studies that due to …

Regulation Of The Long Non-Coding Rna Fam83h-As1 By Human Papillomavirus In Cervical Cancer, Jamie Ann Barr Ph.D.

Graduate Theses, Dissertations, and Problem Reports (ETD)

Non-coding RNAs (NcRNAs), such as long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), have been found to be involved in a variety of critical biological processes, and dysregulation of ncRNAs have been involved with several human diseases including cancer.

High-risk human papillomavirus (HPV) infection is one of the first events in the process of carcinogenesis in cervical and a subset of head and neck cancers. The expression of the viral oncoproteins E6 and E7 is essential in this process by inactivating the tumor suppressor proteins p53 and Rb, respectively, in addition to their interactions with other host proteins and regulation of …

Probability Discounting Of Lewis And Fischer 344 Rats: Strain Comparisons At Baseline And Following Acute Administration Of D-Amphetamine, Jenny E. Ozga

Graduate Theses, Dissertations, and Problem Reports (ETD)

Risky choice can be defined as choice for a larger, uncertain reinforcer over a smaller, certain reinforcer when choosing the smaller alternative maximizes reinforcement. Risky choice is studied using various procedures in the animal laboratory; one such procedure is called probability discounting. There are many variables that contribute to risky decision-making, including biological and pharmacological determinants. The present study assessed both of these variables by evaluating dose-response effects of d-amphetamine on risky choice of Lewis (LEW) and Fischer 344 (F344) rats. The probability-discounting procedure included discrete-trials choices between one food pellet delivered 100% of the time and three food …

Development Of A Task Analysis Tool To Estimate Shoulder Strain During A Lifting Task, Christopher Wayne Moore

Graduate Theses, Dissertations, and Problem Reports (ETD)

Musculoskeletal disorders of the shoulder have a huge impact on the workplace and employees. Due to the complexity and high mobility of the shoulder, developing a task analysis tool with a focus on the shoulder is difficult, and while there are some ergonomic analysis tools that do consider the shoulder to varying degrees in the analysis, none focus purely on the shoulder. Therefore, this research was undertaken in an attempt to develop a shoulder-based task analysis tool for the shoulder. However, since the scope of work involving the shoulder is so vast, the tool in this research focuses on unobstructed, …

Phonetic Convergence And Auditory Imagery In Reading, Josue E. Rodriguez

Cal Poly Humboldt theses and projects

This study aimed to address whether phonetic convergence (speech imitation) and auditory imagery in reading are fundamentally governed by the same process — episodic encoding (c.f., Goldinger, 1998). A set of participants (talkers; N = 12) were recorded speaking sentences at a baseline level. Talkers were then exposed model speaker with either a fast or slow speech rate and then engaged in a reading phase where they read sentences thought to be written by that speaker. If episodic encoding predicts effects of phonetic convergence and auditory imagery in reading style, then talkers should be influenced by a speaker …

Evaluation Of Restoration Techniques And Management Practices Of Tule Pertaining To Eco-Cultural Use, Irene A. Vasquez

Cal Poly Humboldt theses and projects

Tule (Schoenoplectus sp.) is a native plant commonly used by California tribes and Indigenous people throughout the world (Macía & Balslev 2000). Ecological, social and regulatory threats to its use in contemporary Indigenous culture highlight major issues concerning natural resource management. My ancestral homeland, what is now Yosemite National Park, stands as a figurehead in the intersection of land management and Indigenous peoples. An important element of Traditional Ecological Management (TEM) for quality basketry materials is prescribed fire, an element western science is increasingly acknowledging for creating a more biodiverse and heterogeneous landscape. This research was conducted in Mariposa and …

The Effects Of Video Modeling On Complimentary Behaviors Towards Children With Disabilities In Typically Developing Children: A Case Study, Rhodes D. Wroth

Cal Poly Humboldt theses and projects

Video modeling has been an effective instructional tool to teach children with disabilities, however, there is less research on the effectiveness of video modeling to teach typically developing children. The participants of this study were two typically developing children, and they were siblings of child with a disability. This study used an ABAB experimental design to graph, and visually determine differences between control and intervention sessions. The purpose of this study was to evaluate the effectiveness of video modeling to teach typically developing children verbal complimentary behaviors in an inclusive physical activity setting. The results of this study found video …

Consensual Non Monogamy In Humboldt County: An Exploration Of Jealousy, Intimacy, And Emergent Relational Ideologies, Isaac W. Torres

Cal Poly Humboldt theses and projects

Consensual non-monogamy (CNM) is an umbrella term for any agreed-upon sexual or emotional non-exclusive relationship. This study looks at the challenges experienced by people practicing CNM in Humboldt County. I interviewed 12 people with insight into what it is like to live and love in multi-partnered relationships. The results suggest that jealousy, communication, and vulnerability were required to successfully navigate CNM and reimagine intimacy. Reimagining intimacy was contingent on rewriting the feeling rules associated with jealousy and all the underlying emotions that tend to be intricately woven into jealousy. These feelings are fear of abandonment, fear of inadequacy, anger, resentment, …

Pornstars, Content Creators, And Sex Educators: A Discourse Analysis Of Gender, Sexuality & Resistance In The West-Coast Pornography Industry, Samantha Silver

Cal Poly Humboldt theses and projects

Given the ease of Internet accessibility, the porn industry increasingly provides a common socialization medium for conceptions of gender, sex, and sexuality. For my master's thesis, I interviewed 10 industry film and video actors to better understand the processes through which their experiences are created. Interviews provided the data for a discourse analysis that considers systems of power that shaped actor interactions and core definitions of sex, gender, and sexuality. Hegemonic constructions of gender, femininity, and sexuality are pervasive in the industry; however, the industry also provides an arena for transformative discourse and disruption of hegemonic ideals. This research is …

Does Waldorf Education Offer A Well-Rounded And Integrated Experience That Prepares Students For Higher Grades And Life In General?, Jacqueline A. Stratton

Cal Poly Humboldt theses and projects

This thesis research focuses on the study of Waldorf education and how it benefits the whole child. It begins by looking at Rudolf Steiner’s Waldorf educational program and its foundational history and then takes an in depth look at the key elements of its rich philosophy and pedagogy. The literature review focuses on the key question, ‘Does this 100 year-old teaching philosophy encourage a more well-rounded and integrated educational experience than traditional public schools?’ The review highlights four broad topics in relationship to Waldorf education. These include: Educating the Whole Child; Education for the Three Stages of Childhood; Early Childhood …

Reclamation Through Alteration Of The Body: Heavily Tattooed Women’S Perceptions Of Self, Vanessa E. Smith

Cal Poly Humboldt theses and projects

Younger generations, and specifically women, are receiving tattoos in much larger numbers than ever before in the United States (Thompson 2015). However, this does not mean the stigma of tattoos has necessarily shifted. People get tattoos for a variety of reasons, and those reasons may vary by gender. Women are currently becoming heavily tattooed in much larger numbers compared to men (Thompson 2015). There is a lack of literature asking women why they choose tattooing as a form of body modification, and how it may help to define or express themselves. There continues to be a lack of research done …

Effects Of Longline Oyster Aquaculture On Benthic Invertebrate Communities In Humboldt Bay, California, Hannah C. Coe

Cal Poly Humboldt theses and projects

Oyster aquaculture has had a commercial presence in Humboldt Bay for nearly 60 years and has experienced changes in scope and methodology as the industry has grown. The traditional method of bottom-culture oyster beds has been phased out, with longline oyster aquaculture becoming the common replacement. However, this transition has preceded much of the research regarding potential impacts to the broader ecosystem. The benthic invertebrate community of Humboldt Bay is a vital food source for many commercially important fishes, as well as for the many shorebirds that utilize Humboldt Bay. The importance of the invertebrate community to the ecosystem highlights …

Masculine Norms, Psychological Symptom Severity, And Intentions To Seek Formal Help In Male College Students, Zahra S. Shine

Cal Poly Humboldt theses and projects

Research has consistently found men to be less likely than women to seek help for mental health symptoms. Additionally, greater symptom severity is related to higher levels of help seeking, although this relationship is less clear among men. Greater conformity to masculine norms may help to explain the relationship between symptom severity and help seeking among men. The present study aimed to further research on men’s help-seeking by examining whether conformity to masculine norms would moderate the relationship between symptom severity and help-seeking intentions in male college students (N = 89). A multiple regression analysis was conducted with all …

Response Of Headwater Amphibians To Long-Term Logging Impacts And Assessing Potential For Restoration In Redwood National And State Parks, Alyssa Marquez

Cal Poly Humboldt theses and projects

The timescale of community response to disturbance varies drastically, and slow-recovering ecosystems such as coastal redwood forests may take hundreds of years to return to old-growth conditions post-logging. Few studies have quantified long-term (>50 years) impacts of disturbance on ecosystems, specifically aquatic ecosystems. This study provides evidence of the persistence of historical logging impacts 50 years post-logging through the comparison of headwater amphibian populations (occupancy and abundance) and stream characteristics using a control-treatment study with a logged watershed, Streelow Creek, as the treatment and a pristine old-growth watershed, Godwood Creek, as the control. The immediately adjacent old-growth watershed acts …

The Green Web: Evaluating Online News Communities And Their Environmentalism, Stian Himberg Roussell

Cal Poly Humboldt theses and projects

In the past news and media were disseminated through channels that were difficult for consumers to communicate with. Now a new form of news dissemination is taking place on the internet where communication between consumers and producers exists. Crowdsourced social media sites, where users elect and vote on articles and comments to represent a topic, are creating new forms of news dissemination, which heavily alters media content, and community discussions. This study was conducted in order to better understand how crowdsourced social media platforms affect users’ perception of environmental topics, issues, and problems. It focuses on the crowdsourced social media …

The Effects Of C-Tactile Afferent Stimulation On Male Orgasm And Ejaculation, Yacoub Ayed Innabi

Cal Poly Humboldt theses and projects

Orgasms and ejaculation are important for relationships and contribute significantly to life satisfaction. There is, however, a lack of research in the current literature regarding orgasm perception. This study tested the effects of endogenous oxytocin on subjective orgasm intensity, ejaculation latency, and ejaculate volume in men. At two separate test sessions, the participants were either stroked on the forearm (to release endogenous oxytocin) or tapped on the hand (to act as a control) with a cosmetic brush. The forearm contains C-tactile afferents that are believed to release oxytocin centrally and peripherally in response to slow, soft stroking stimulation. Then a …

Parent Attitudes Towards Inclusion In Physical Education, Sarah Astrid Crye

Cal Poly Humboldt theses and projects

BACKGROUND: More schools are moving towards full inclusion for students with disabilities into physical education classes. One key facilitating factor in the success of inclusion is parental support and involvement. Although much research has been conducted on the attitudes of teachers and students towards inclusion in physical education classes, there is very little information regarding parent attitudes towards inclusion in a physical education setting.

PURPOSE: To examine parent attitudes towards inclusion in physical education.

METHODS: Online anonymous surveys were administered to parents of students with and without disabilities enrolled in a high school in rural northern California. Survey questions gathered …

"I See Gay People" Gaydar Abilities In A Real-World Distribution, Benjamin Patrick Skillman

Cal Poly Humboldt theses and projects

“Gaydar” is the colloquial term for identifying someone’s sexual orientation from physical cues. Past literature has shown that people can identify someone’s sexual orientation at above chance levels. Past literature has used a 50/50 split of gay and straight faces and used non-standardized images, which can induce confounds in the results. The present study examined gaydar accuracy in a realistic distribution of straight and gay faces using standardized images and examined facial morphology for differences between gay and straight men. Participants were not found to have above chance accuracy for identifying gay faces. PCA did not identify reliable shape differences …

"We're All Aging": A Discourse Analysis Of Older Adults Aging Experiences In Humboldt County, Kaitlyn Dawn Boyes

Cal Poly Humboldt theses and projects

Age is a ubiquitous concept. One minute we are counting down the days until our birthday and the next minute we are ignoring the fact our birthdays exist. Society’s aging population is rapidly growing and is expected to double nearly double by 2050, this increase in population has led to a shift in treatment and attitudes towards both those who are aging and aging itself. There is currently a gap in the literature on aging experiences coming from those experiencing it; rather those in medical professions often dictate these experiences. To help fill those gaps this thesis explores how older …

A Soil Genesis Investigation Into Possible Long-Range Transport Of Foreign Sediments In The Stann Creek District Of Belize, Heath Sawyer

Cal Poly Humboldt theses and projects

Throughout the world, long range transport (LRT) of aeolian dust plays a major role in the total global dust budget. Research suggests that LRT dust from the deserts of North Africa play a role in soil genesis in the Americas. The focus of this study is a preliminary investigation for evidence of North African dust or volcanic ash influence on the soils in the Cockscomb Basin Wildlife Sanctuary in Stann Creek District, Belize. A series of 7 soil profiles were analyzed from a catena transect to determine if there is evidence of foreign materials by using X-ray diffraction and Scanning …

Physical Therapist Views And Experiences With Patient Use Of Marijuana, Arturo De La O Basurto Jr.

Cal Poly Humboldt theses and projects

Conditions seen within physical therapy settings overlap with reasons that patients seek marijuana. For this reason, information about these professionals’ outlooks on patients’ marijuana use in prime. Purpose: Gain current views and experiences of physical therapists (PTs)/physical therapist assistants (PTAs) on their patients’ use of marijuana in the physical therapy field. Methods: PTs/PTAs were invited to complete an anonymous survey asking relative PT/PTA views, experiences, and understanding of patients’ marijuana use. Results: PTs/PTAs who have had experience (did not have experience) with patients who use marijuana received information about marijuana from news media - 61% (60%), patients …

Overlooked Fisheries Of Baduwa’T: An Oral History Study Exploring The Environmental And Cultural Histories Of Eulachon And Pacific Lamprey In The Mad River Basin, A Wiyot Watershed, Kara Lindsay Simpson

Cal Poly Humboldt theses and projects

Eulachon and Pacific lamprey fisheries of the Mad River are significant for Indigenous peoples of the region, but they remain data-poor and underfunded even though eulachon is listed as threatened under the federal Endangered Species Act and Pacific lamprey is recognized as a species of concern by U.S. Fish and Wildlife Service. The lower Mad River and Humboldt Bay region lie in the traditional territory of the Wiyot and are home to Indigenous people who have maintained subsistence eulachon and Pacific lamprey fisheries. This research primarily draws from 13 oral history interviews with local Indigenous people, 18 key informant interviews …

Assessment Of Uv Light For The Treatment Of Cyanotoxins In Small-Scale Drinking Water Treatment Systems, Ryan Spencer Mclintock

Cal Poly Humboldt theses and projects

Harmful Algal Blooms (HABs) are commonly caused by the rapid growth of cyanobacteria in fresh waterways, which many people rely on for drinking water. When a HAB occurs, a variety of cyanotoxins can be produced and released into sources of drinking water, which can make people sick or die if not properly treated. Two of the most common toxins are microcystin-LR (MC-LR) and anatoxin-a (A-a), for which the World Health Organization (WHO) recommends a maximum allowable concentration of 1 µg/L in drinking water to avoid health risks. The recommendation for maximum allowable concentration was calculated specifically for microcystins, but is …

The Effects Of Social Media In The Overall Job Satisfaction Of School Administrators, Tiffany R. Maher

Cal Poly Humboldt theses and projects

Literature suggests school administrator shortages worldwide. A number of factors are blamed for this trend, one of which is overall job dissatisfaction. This case study examines the effects of social media on the overall job satisfaction of five school administrators in small town America. Through semi-structured interviews, this research indicates that school administrators in the study avoid reading the comments section of online news media forums. Research participants share their strategies of working proactively with the press, and they reveal how social media has changed their job. Social media has altered the landscape of what it means to be a …