May 3, 2024 | Digital Showcase | Humboldt Library
All Presenters & Abstracts
Frequency and Intensity of Exposure to Carbonate Corrosive Waters in a Near-shore Upwelling Environment
Presentation Year: 2015
A primary consequence of increasing atmospheric CO2 is the lowering of ocean pH and associated stress on calcium carbonate bearing organisms. Coastal regions are vulnerable to low-pH due to seasonal upwelling which periodically introduces CO2–enriched deep water to the surface. Time-series of pH at Trinidad Head, California were analyzed to ascertain the frequency and intensity of exposure to carbonate corrosive waters from 2006-2011. Most years experienced 11-35 days of exposure to corrosive water, while enhanced upwelling in 2010 resulted in 61-84 days of exposure. Some instances show that corrosive conditions were ameliorated by enhanced photosynthesis in response to upwelled nutrients.
Human Perception of Vocal and Visual Beauty in Male Passerines
Presentation Year: 2015
Charles Darwin hypothesized that bird song and plumage might replace each other. Other studies have also found a negative correlation in the relationship of song and plumage. I surveyed 40 students in Ornithology and Advanced Ornithology classes at HSU in January and February of 2015. Each survey consisted of a song listening portion and a photo slideshow where each participant rated the vocal and visual attractiveness on a scale of 1 to 3. The results showed a negative correlation and found that more experienced birders on average thought that birds were more attractive than less experienced birders.
Humboldt State University Student-Parents: Strengths, Challenges, and Needs
Presentation Year: 2015
The Student-Parent Support Initiative is a student-run initiative whose purpose is to bring a campus-wide awareness of student-parents at Humboldt State University. Our goal is to identify student-parents and to help students with children connect with one another and provide a space to find resources that support their family and academic goals. This presentation highlights the strengths, challenges, and needs of 18 student-parents who participated in focus groups and completed a questionnaire during the 2014-2015 academic year.
Hybrid membrane processes for water reuse
Presentation Year: 2015
A paradigm shift that utilizes water reuse strategies such as sewer mining is necessary as water resources become more stringent. Sewer mining is the beneficial reuse of wastewater before it is conventionally treated and discharged. This novel hybrid sewer mining system is a unique combination of proven unit processes: forward osmosis (FO), direct contact membrane distillation (DCMD), anaerobic membrane bioreactors (AnMBR), Sharon, Annamox, and struvite precipitation arranged in an innovative way. This poster will present the experimental results from a bench-scale automated FO-DCMD system to produce a high quality potable effluent under different operating conditions.
I Cannot Believe It’s Not Gluten
Presentation Year: 2015
Celiac Disease is defined by intolerance to gluten, similar to that of an allergic reaction. The only published treatment is abstaining from gluten, in any form. Gluten-free products became widely offered in grocery stores and restaurants soon followed suit. The FDA has ruled that after August 5, 2014 that food that is gluten-free can have up to 20 parts per million (ppm) of “unavoidable” gluten contamination. This project tests for the occurrence of gluten contamination found within restaurants that serve food labeled as gluten –free, in Arcata, Ca. The study focuses on three local restaurants: Luke’s Joint, Smug’s Pizza, and Hey Juan's.
Income inequality in the U.S. 1922-2012
Presentation Year: 2015
Data and historically significant factors which are thought as primary. The poster also considers comparison internationally in recent time. I'm writing this on my cell, but have put a lot of thought and work into presenting on this and look forward to it. If you would like more info please e-mail me, thank you, Bill O'Neill
Investigating Coseismic vs. Interseismic Uplift of Marine Terraces at the Southern Terminus of the Cascadia Subduction Zone: Cape Mendocino to Punta Gorda, Petrolia, Ca
Presentation Year: 2015
The Cascadia subduction zone of the Paci c Northwest terminates in the south at the Mendocino Triple Junction, a region of elevated seismic activity. Here, tectonically driven uplift is likely responsible for the formation of Holocene-aged marine terraces. In 1992, a M 7.1 thrust mainshock and two ~M 6.5 aftershocks occurred o shore of Cape Mendocino, resulting in 1.4 meters of uplift. However, it is unknown whether these marine terraces formed due solely to large episodic coseismic uplift caused by moderately large to large magnitude earthquakes, or whether interseismic deformation plays a role in their formation. This study seeks to investigate the formation of these terraces.
Jet propulsion at the smallest size scales: Kinematics and fluid dynamics of swimming Siphonophores
Presentation Year: 2015
Siphonophores (Cnidaria: Hydrozoa) inhabit pelagic waters where representative species occupy depths ranging from the surface to the abyss. Locomotion by siphonophores is achieved by nectophore muscular contractions, which generate vortex ring wakes similar to jet-propelled medusa and squid. Using high-speed video analysis, we compare the kinematics and characterize wake structures of two different species of siphonophores during straight and turning swimming. By extracting the kinematics of individual nectophores, we quantify the formation time (T*) to characterize the jet wake. We show the T* generated by swimming physonect siphonophores are larger than other jet-propelled swimmers.
Literacy an Asset Based Approach
Presentation Year: 2015
With No Child Left Behind (NCLB) and Common Core there are misconception on literacy, specifically, false research being promoted for corporate greed. We are not saying that skills based literacy is useless but it should not be the main nor the only approach when engaging students in literacy. In this case study we explored multiple literacies, specifically we implemented side by side sessions where we used a whole language multiliteracy approach through play, creative spelling, drawing, dialogue, and children as authors. We conclude that children love to read when they engage in language play, create their own stories, choose and discuss books.
Making of a Monster: Media Constructions of Transgender Victims of Homicide
Presentation Year: 2015
There is a general sentiment in public discourse that victims are good and innocent, and offenders are bad. This dichotomy is blurred when the victim is somehow socially undesirable, such as people who do not conform to society’s expectation for gender, or victims who are not white. In the case of gender non-conforming victims of homicide, especially transwomen of color, the media often portray the victims as deceivers, or criminal, insinuating the victim is to blame for their attack. This study focuses on the media portrayal of 259 homicide victimizations that occurred between 1995 and 2014. Using content analysis, we explore these cases through the victims, offenders and news media.
Mothers of children with autism
Presentation Year: 2015
This research project is about mothers of children with autism. Interviews were conducted with 12 different mothers, and were carefully transcribed and analyzed. The focus of the research is on the way that they see themselves as mothers, either good, ambivalent, or self-critical, in regards to their child's disability. Three components which are looked at are primary caregiver status, degree of sacrifice for the child, and role as advocates.
My Self, My Community, My World
Presentation Year: 2015
The LSEE 380 pilot class has been working in South Fortuna the past semester, working with 3rd and 4th graders on the concepts of Social Justice. We have asked the classes to help us determine the problems they see around their selves, community, and world. We asked "what would you do to change the problems around you?" This is the outcome...
Natural History and Basking Habits of Western Pond Turtles
Presentation Year: 2015
This research represents the preliminary results of a longer term project in Sequoia National Park, California. I used temperature dataloggers to investigate western pond turtle behavior to better understand their natural history and thus inform monitoring protocol and conservation. These data suggest that snorkel surveys used to monitor turtle populations may be more effective if conducted at night. In addition, these data indicate the potential for intraspecific niche partitioning among turtles according to age. These early results hint at unique turtle behavior that is otherwise difficult to observe for a cryptic species and thereby warrant further investigation.
Observer Bias of Giant Kangaroo Rat Precinct Indexing
Presentation Year: 2015
This was a side-project of the Carrizo Ecosystem Project where two observers independently surveyed precincts of the Federally Endangered Giant kangaroo rat (Dipodomys ingens) on 10 plots in the Carrizo Plain National Monument, San Luis Obispo County, California. The goals were to note the bias between observers, to determine if the number of active precincts correlate with the current population density estimates, and to determine if indexing Giant kangaroo rat (GKR) precincts is a reliable method for determining the current GKR population status.
Ophiocordyceps Sinensis: A Study of Tibet’s Caterpillar Fungus, and the Possible Anthropogenic Nature of its Recent Population Decline
Presentation Year: 2015
Ophiocordyceps sinensis, or Caterpillar fungus, has been used as a cure all for millennia by Tibetan nomads. The fungus which parasitizes the larva of moths is also used in China. Supply of the prized fungus, which only grows on the Tibetan plateau and northern slope of the Himalayas, was not always available to the Chinese given the remote nature of the plateau. In recent decades however, developing relations between China and the Tibetan region have led to increased gathering of the fungus. This poster will discuss the history of O. sinensis as medicine, as well as the modern relationships between the fungus and the people who use it, and what that means for the fungi’s future.
Permanence in an Ephemeral Collection: The History and Future of the Pamphlet Collection at Humboldt State University Library
Presentation Year: 2015
Is a vertical file of newspaper clippings and ephemera still relevant in the digital age? This poster describes the changing nature of vertical files, pamphlets, and other ephemeral collections in the 21st century using the Humboldt State University Library Pamphlet Collection as a case study. The poster also considers how archivists and librarians continue to encourage student and researcher participation with ephemeral materials, whether paper or digital.
Predicting Phosphorus Retention in Two Volcanic-Derived Forest Soils of Northern California
Presentation Year: 2015
Plant available phosphorus (P) occurs in anionic forms which become plant-unavailable ("fixed" or "retained") when iron and aluminum oxides form insoluble phosphate complexes. P-retention is especially likely to occur under acid conditions in soils containing short range order (SRO; poorly crystalline) materials, namely allophane and imogolite. This set of characteristics is common in volcanic-derived forest soils in Pacific Northwest timber regions. We built upon 25 years of research by investigating phosphorus retention on two well-studied sites, Whitmore and Feather Falls. Simple soil assays were used in a mixed-effects model to predict P-retention on these soils.
Queers in the Pre-Stonewall Media
Presentation Year: 2015
The Stonewall Riots in June of 1969 started the modern lesbian, gay, bisexual, transgender and queer (LGBTQ) rights movement in the United States. It took four more years for "homosexuality" to be removed from the Diagnosis and Statistical Manual (DSM). This study looks at the 20 years before the Stonewall Riots, exploring how LGBTQ people were discussed in the media. Using content analysis on more than 300 articles from the New York Times (1950-1969), we explore the evolution of language used to describe members of the LGBTQ communities, through the McCarthy era (1950-1956), the decriminalization of homosexuality in the UK in 1967, and social movements, like the riots in the summer of 1969.
Regain Literacy A Proactive Approach
Presentation Year: 2015
The LSEE 411 class at Humboldt State University has been working with Elementary schools in Northern California this semester, trying to bring back the play and fun of reading. We have build a relationship with our students, we have learnt that even of our students understand differently, learn differently, and can explain the world to them differently. We have an amazing experience working in one-on-one reading interventions with these students. We as the LSEE 411 classroom have learnt that the Education system is not what the schools need, we need a whole new approach on literacy.
Reliability and Validity of the Humboldt Appreciation of Humor Scale
Presentation Year: 2015
This study was conducted to assess the reliability and validity of the Humboldt Appreciation of Humor Scale (HAHS). The HAHS was assessed with undergraduate and graduate students from Humboldt State University. The scale is a 21-item Likert-type measure that was found to have good internal consistency (r = .93) and good test-retest reliability (r = .86). It was validated with a criterion-related measure, Humor Styles Questionnaire (r = .53), a discriminant measure, substance use questionnaire (r = .19), and a convergent measure, Beck’s Hopelessness Scale (r = .55).