Organizational Influence On Knowledge Co-Production, Evora Dakota Glenn

Graduate Student Theses, Dissertations, & Professional Papers

Interdisciplinary and transdisciplinary approaches are needed to effectively address the challenges facing our complex social-ecological systems. To meet this need, many approaches, including co-production, have been proposed to overcome the difficult relationship between science and governance, often termed a ‘gap’, which can continue to impede natural resource problem solving. Co-production is an iterative process that engages scientists, managers, and community members in knowledge creation and problem solving. Evidence indicates that participants are more likely to view co-produced knowledge as more salient, legitimate, and credible, and that they are more likely to use it. Evidence also indicates that this iterative and …

Finding Fishers: Determining The Distribution Of A Rare Forest Mesocarnivore In The Northern Rocky Mountains, Jessica M. Krohner

Graduate Student Theses, Dissertations, & Professional Papers

The Northern Rocky Mountain fisher population (Pekania pennanti), is classified as a Species of Greatest Conservation Need and is of special concern to state, federal, and tribal entities. In this thesis, we present methods to effectively survey fishers across the northern Rockies of Idaho and Montana, and provide estimates of fisher distribution at a population range-wide scale through occupancy analyses. We also assess factors that influence fisher occurrence through covariate analyses and identify core fisher habitat in the northern Rockies through spatial occupancy modeling. By sampling broadly across the landscape, we provide baseline distributional data for comparison against …

The Home As A Site Of Family Communicated Narrative Sense-Making: Grief, Meaning, And Identity Through “Cleaning Out The Closet”, Kendyl A. Barney

Graduate Student Theses, Dissertations, & Professional Papers

This study utilized communicated narrative sense-making theory to explore the process of sorting through a deceased loved one’s belongings and changing the home after loss (referred to as “cleaning out the closet”), as the site of family communication and storytelling. Through storytelling, families make order of the disordered experience that is bereavement by negotiating meaning, identity, and family. The stories told about and within the process of “cleaning out the closet” elicit rich insight on each family’s experience with bereavement, loss, and life with each other. “Cleaning out the closet” narratives shed light on the interactions that occur between family …

Creating A Conservation Corridor In Coastal Ecuador: Constraints And Opportunities For Integrative Agroforestry, Lucille M.F. Rice

Graduate Student Theses, Dissertations, & Professional Papers

Agroforestry has the potential to address land degradation and rural livelihood concerns resulting from tropical deforestation and has therefore become a popular tool for reforestation in conservation initiatives. However, these initiatives often lack the resources to implement an integrative approach to developing site-specific agroforestry systems, leading to undesirable outcomes such as lack of community support and unmet ecological objectives. This paper presents a case study of a conservation initiative implemented by the Ceiba Foundation for Tropical Conservation (CFTC) in the Ecuadorian province of Manabí. The CFTC is working with private landowners to establish a coastal conservation corridor through reforestation and …

Selection Of Forage And Avoidance Of Predation Risk By Partially Migratory Mule Deer, Collin Jeffrey Peterson

Graduate Student Theses, Dissertations, & Professional Papers

Migration by ungulates has traditionally been thought of as a strategy that increases access to forage quality or reduces exposure to risk of predation, but the benefits of migration may be waning globally. In partially migratory populations, the persistence of both migrant and resident strategies is an intriguing ecological phenomenon, because migrants and residents often face contrasting fitness consequences. Partial migration is common in mule deer (Odocoileus hemionus), a species that has experienced widespread declines across the western United States during recent decades. Mule deer seldom switch between migratory strategies throughout their lifetime, which may make them less resilient to …

Optimizing The Use Of Wildlife Monitoring Resources, Charles Raymond Henderson Jr.

Graduate Student Theses, Dissertations, & Professional Papers

Accurate knowledge regarding trends in the abundance of wildlife populations provides a foundation for the understanding of wildlife ecology and effective wildlife management. Abundance estimates enable managers and researchers to track the status of wildlife populations, supply information on which to base wildlife management decisions, and provide a metric to assess the outcome of specific management actions. Consequently, accurate estimates of abundance provide essential knowledge for managing wildlife populations effectively. However, the amount of resources available for monitoring wildlife populations is limited and often fluctuates in response to changes in annual budgets. Therefore, agencies responsible for the management of wildlife …

Rhetoric And Perception: A Case Study Of The Proposed Northmet Mine On Minnesota’S Iron Range, Sophia J. Frank

Graduate Student Theses, Dissertations, & Professional Papers

Northern Minnesota is rich in natural resources, perhaps most uniquely the expansive mineral deposits of the Mesabi and Vermilion Ranges. The steel and taconite mining opportunities along these veins helped facilitate the rapid growth and infrastructure development of the area and is an important part of the identity of the region northwest of Duluth, aptly known as Iron Range. In addition to iron deposits, The Iron Range contains large deposits of copper and nickel. Recently proposed copper-nickel mining projects by PolyMet and Twin Metals have garnered a great deal of public controversy, especially around issues of economic revitalization of the …

Investigating Wildfire As A Catalyst For Community-Level Resilience, Lily J. Clarke

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Dynein Light Chain 1 Functions As A Cofactor For Post-Transcriptional Mrna Regulation And Rna Granule Assembly, Nicholas Day

Graduate Student Theses, Dissertations, & Professional Papers

Gene regulation is essential for ensuring maintenance, proliferation, and proper development of a cell. RNA binding proteins (RBPs) regulate gene expression by targeting and binding mRNAs to control their translation and often localize to cytoplasmic assemblies of protein and RNA called RNA granules to facilitate post-transcriptional mRNA regulation. Using C. elegans as a model organism, we report on the function of dynein light chain 1 (DLC-1), a subunit of the dynein motor complex, in post-transcriptional mRNA regulation in the gonad. Previous work suggests that DLC-1 is an RBP cofactor that functions independent of the dynein motor. It is unknown how …

Diel Activity Patterns Of Southern Flying Squirrels (Glaucomys Volans), Jason Robert Wogsland

Cal Poly Humboldt theses and projects

Southern flying squirrels (Glaucomys volans) are common and relatively abundant residents of Tennessee forests. They are often associated with mast-producing trees (ie. Quercus spp., oaks) and snags because they provide essential food resources and nest sites. However, they are widespread and occur in many different habitat types; including high-elevations in Eastern Tennessee where spruce-fir forests are dominant. Despite their extensive distribution, little is known about diel activity patterns or how factors such as elevation, temperature, or habitat composition influence timing and amount of activity. To better understand what influences activity, two passive monitoring methods (camera traps and acoustic detectors) were …

Weighted Mutual Information For Aggregated Kernel Clustering, Nezamoddin N. Kachouie, Meshal Shutaywi

Mathematics and System Engineering Faculty Publications

Background: A common task in machine learning is clustering data into different groups based on similarities. Clustering methods can be divided in two groups: linear and nonlinear. A commonly used linear clustering method is K-means. Its extension, kernel K-means, is a non-linear technique that utilizes a kernel function to project the data to a higher dimensional space. The projected data will then be clustered in different groups. Different kernels do not perform similarly when they are applied to different datasets. Methods: A kernel function might be relevant for one application but perform poorly to project data for another application. In …

Towards Deep Learning For Weed Detection: Deep Convolutional Neural Network Architectures For Plant Seedling Classification, Martinson Ofori, Omar F. El-Gayar

Research & Publications

Traditional means of on-farm weed control mostly relies on manual labor. This process is time consuming, costly and contributes to major yield losses. The conventional application of chemical weed control, however, goes against the strive for sustainability. To solve this using computer vision, precision agriculture researchers have used remote sensing weed maps, but this has been largely ineffective for early season weed control due to problems such as solar reflectance and cloud cover in satellite imagery. With the current advances in artificial intelligence, this study leverages the automatic feature extraction capabilities of deep convolutional neural networks (DCNN) to classify plant …

Bringing Climate Change Home To Meet Your Community: Stakeholder Perceptions Of Offshore Wind Energy In Humboldt County, California, Ciara R. Emery

Cal Poly Humboldt theses and projects

As impacts from anthropogenic climate change continue to manifest at global and local scales, communities are increasingly seeking solutions to transition the world away from fossil fuels. Novel renewable energy technologies, including offshore floating wind energy, continue to garner developer interest. Technological success, however, is one small piece in the effort to decarbonize. Project developers are required to engage in political and bureaucratic processes and work with communities where projects may be sited. Balancing community perceptions and needs, as well as permitting and leasing processes, with increasing pressure to decarbonize will be key as the fight against climate change continues. …

Effects Of Multiple Stressors: Hydroperiod, Introduced Bullfrogs, And Food Limitation On Northern Red-Legged Frogs (Rana Aurora), Lindsey L. Gordon

Cal Poly Humboldt theses and projects

As human activities reach every corner of the globe, climate change, invasive species, habitat destruction, and other stressors causing species’ declines no longer act alone. Climate change has the potential to exacerbate (or mitigate) other stressors (e.g. invasive species or pathogens) affecting amphibian populations. I assessed the combined effects of increased pond drying rates (potential impact of climate change), invasive bullfrogs (Lithobates catesbeianus) presence, and food availability on northern red-legged frog (Rana aurora) survival and body size after metamorphosis by rearing tadpoles under incrementally shortened hydroperiods with and without the presence of invasive bullfrog tadpoles in …

Exploring The Origins Of Secondary Growth – Two Lower Devonian (Emsian) Euphyllophytes From Gaspé, Canada, And Their Implications For The Evolution Of Secondary Growth, Kelly C. Pfeiler

Cal Poly Humboldt theses and projects

Secondary growth from a vascular cambium has a deep fossil record among euphyllophytes, with the earliest occurrence dated to 407 Ma. To date, Armoricaphyton and Franhueberia represent the only instances of secondary growth formally documented in the Early Devonian. Secondary growth diversified rapidly and was present in all major euphyllophyte lineages by the Middle Devonian. Here, I describe two new Early Devonian euphyllophytes exhibiting secondary growth, from the Emsian (c. 400-395 Ma) Battery Point Formation (Québec, Canada): Gmujij tetraxylopteroides gen. et sp. nov. and Perplexa praestigians gen et sp. nov. Both these plants possess mesarch actinosteles with Psilophyton-type …

Understanding Reading In The English Program: An Inquiry Of How Students Are Guided With Advanced Reading Materials, Kelley L. Ellion

Cal Poly Humboldt theses and projects

Reading and writing are connected activities. Research has shown that you cannot truly be successful in one without the other. In post-secondary writing intensive courses, the teaching of reading in regards to advanced academic texts is often forgotten or ignored due to pre-existing conceptions of reading practices. In this project, I have conducted a research study across three (3) FYC courses at Humboldt State University to understand how the teaching of reading is implemented within its FYC program. I specifically study how the reading pedagogy known as the Reading Apprenticeship (RA) framework is used by instructors within their classrooms and …

Retelling Narratives Of Eco-Memory: Settler Colonialism And Carceral Occupation Of The Jordan River, Megan Rose Awwad

Cal Poly Humboldt theses and projects

In this thesis, I retell and reclaim stories that have been shared and passed down within my family and family history in relation to our homeland, Palestine, and more specifically to the Jordan River. I argue that the construction of the dam in the 1960s on the Jordan River, by a zionist state, is an extension of both the settler colonial state and the treatment of the land/rivers as inherently linked with the treatment of Indigenous people. The carceral spaces and geographies settler states create are part of both the destruction of the land and the genocide Indigenous people experience. …

The Effect Of Shade Tree Species On Bird Communities In Central Kenyan Coffee Farms, Deven Kammerichs-Berke

Cal Poly Humboldt theses and projects

Shade coffee has been recognized as a well-studied example of a land-sharing management strategy that both creates habitat for tropical birds while also maintaining agricultural yield. Despite the general consensus that shade coffee is more “bird-friendly” than a sun coffee monoculture, little work has been done to investigate the effects of specific shade tree species on bird diversity and their capacity to help deliver ecosystem services. Previous studies in temperate regions have demonstrated that due to shared evolutionary histories, native plant species are better at promoting native arthropod numbers, which in turn support a greater number of birds. This study …

Synthesis, Characterization, Dna Binding, Topoisomerase Inhibition, And Apoptosis Induction Studies Of A Novel Cobalt(Iii) Complex With A Thiosemicarbazone Ligand, Stephen J. Beebe, Michael J. Celestine, Jimmie L. Bullock, Shayna Sandhaus, Jessa Faye Arca, Donald M. Cropek, Tekettay A. Ludvig, Sydney R. Foster, Jasmine S. Clark, Floyd A. Beckford, Criszcele M. Tano, Elizabeth A. Tonsel-White, Raj K. Gurung, Courtney E. Stankavich, Yuk-Ching Tse-Dinh, William L. Jarrett, Alvin A. Holder

Bioelectrics Publications

In this study, 9-anthraldehyde-N(4)-methylthiosemicarbazone (MeATSC) 1 and [Co(phen)₂(O₂CO)]Cl·6H₂O 2 (where phen = 1,10-phenanthroline) were synthesized. [Co(phen)₂(O₂CO)]Cl·6H₂O 2 was used to produce anhydrous [Co(phen)₂(H₂O)₂(NO₃)₃ 3. Subsequently, anhydrous [Co(phen)₂(H₂O)₂] (NO₃)₃ 3 was reacted with MeATSC 1 to produce [Co(phen)₂(MeATSC)](NO₃)₃·1.5H₂O·C₂ H₅OH 4. The ligand, MeATSC 1 and all complexes were characterized by elemental analysis, FT IR, UV–visible, and multinuclear NMR …

Interfacial Current Distribution Between Helium Plasma Jet And Water Solution, Sui Wang, Dingxin Liu, Zifeng Wang, Yifan Liu, Qiaosong Li, Xiaohua Wang, Michael G. Kong, Mingzhe Rong

Bioelectrics Publications

The plasma-liquid interaction holds great importance for a number of emerging applications such as plasma biomedicine, yet a main fundamental question remains about the nature of the physiochemical processes occurring at the plasma-liquid interface. In this paper, the interfacial current distribution between helium plasma jet and water solution was measured for the first time by means of the splitting electrode method, which was borrowed from the field of arc plasma. For a plasma plume in continuous mode, it was found that the mean absolute current distribution at the plasma-liquid interface typically had an annular shape. This shape could be affected …

Effects Of Plasma-Activated Water On Skin Wound Healing In Mice, Dehui Xu, Shuai Wang, Bing Li, Miao Qi, Rui Feng, Qiaosong Li, Hao Zhang, Hailan Chen, Michael G. Kong

Bioelectrics Publications

Cold atmospheric plasma (CAP) has been widely used in biomedicine during the last two decades. While direct plasma treatment has been reported to promote wound healing, its application can be uneven and inconvenient. In this study, we first activated water with a portable dielectric barrier discharge plasma device and evaluated the inactivation effect of plasma-activated water (PAW) on several kinds of bacteria that commonly infect wounds. The results show that PAW can effectively inactivate these bacteria. Then, we activated tap water and examined the efficacy of PAW on wound healing in a mouse model of full-thickness skin wounds. We found …

Thermal Analysis Of Infrared Irradiation-Assisted Nanosecond-Pulsed Tumor Ablation, James Hornef, Chelsea M. Edelblute, Karl H. Schoenbach, Richard Heller, Siqi Guo, Chunqi Jiang

Bioelectrics Publications

Nanosecond Pulsed Electric Fields (nsPEF) have the potential to treat a variety of cancer types including melanoma, pancreatic and lung squamous cancers. Recent studies show that nsPEF-based cancer therapy may be improved further with the assistance of moderate heating of the target. A feedbacklooped heating system, utilizing a 980-nm fiber optic laser, was integrated into nsPEF electrodes for tumor ablation. The laser beam profile was determined to be Gaussian using a knife-edge technique. Thermal properties of the biological target were evaluated based on the treatment area, penetration depth and thermal distribution due to laser irradiation with or without nsPEF. Synergistic …

Quadrupoles For Remote Electrostimulation Incorporating Bipolar Cancellation, Shu Xiao, Ryo Yamada, Carol Zhou

Bioelectrics Publications

Introduction: A method that utilizes nanosecond bipolar cancellation (BPC) near a quadrupole electrodes to suppress a biological response but cancels the distal BPC at the quadrupole center, i.e., cancellation of cancellation (CANCAN), may allow for a remote focused stimulation at the quadrupole center.

Objectives: The primary object of this study was to outline the requirement of the CANCAN implementation and select an effective quadrupole configuration.

Results: We have studied three quadrupole electrode configurations, a rod quadrupole, a plate quadrupole (Plate-Q), and a resistor quadrupole. The pulse shapes of electric fields include monophasic pulses, cancellation pulses, and additive pulses. The Plate-Q …

Bone Morphogenic Proteins Are Immunoregulatory Cytokines Controlling Foxp3+ TReg Cells, Lauren M. Browning, Caroline Miller, Michal Kuczma, Maciej Pietrzak, Yu Jing, Grzegorz Rempala, Pawel Muranski, Leszek Ignatowicz, Piotr Kraj

Bioelectrics Publications

Bone morphogenic proteins (BMPs) are members of the transforming growth factor β (TGF-β) cytokine family promoting differentiation, homeostasis, and self-renewal of multiple tissues. We show that signaling through the bone morphogenic protein receptor 1α (BMPR1α) sustains expression of FOXP3 in T_reg cells in peripheral lymphoid tissues. BMPR1α signaling promotes molecular circuits supporting acquisition and preservation of T_reg cell phenotype and inhibiting differentiation of pro-inflammatory effector Th1/Th17 CD4+ T cell. Mechanistically, increased expression of KDM6B (JMJD3) histone demethylase, an antagonist of the polycomb repressive complex 2, underlies lineage-specific changes of T cell phenotypes associated with abrogation of BMPR1α signaling. …

Hsp90 Inhibitors For Ipf/Covid-19, Ruben Manuel Luciano Colunga Biancatelli, Pavel A. Solopov, John Catravas

Bioelectrics Publications

Heat shock protein 90 (HSP90) is an important chaperone that assists the late stage folding of several proteins involved in cell survival in response to environmental stressors. The inhibition of HSP90 is followed by a complex modulation of the proteome and the kinome, that has proved beneficial in cancer and various neurodegenerative diseases. Additionally, accumulating literature suggests that HSP90 may be a key target during the development of pulmonary fibrosis and that its inhibition could serve as a new and exciting therapeutic approach. We have summarized the current evidence about HSP90’s role in Idiopathic Pulmonary Fibrosis (IPF), the results from …

Bending The Arc Toward Justice: The Current Era Of Juvenile Justice Reform In Georgia, Melissa D. Carter

Georgia Law Review

America’s juvenile justice system is experiencing another era of reform. The formal juvenile justice system originated from the ideology and methods of social reformers who viewed deviant behavior as a treatable condition and sought redemption of criminal youth. In the first era of reform, that view powered the state’s exercise of its parens patriae authority and produced a paternalistic judiciary and institutions that used custody as a means of achieving social control. Over time, changing political and social views of childhood and a growing recognition in the law of children as rights-holders shifted the system’s focus away from the rehabilitative …

A Reanalyses Of Intercorrelational Matrices Of Visual And Verbal Learners' Abilities, Cognitive Styles, And Learning Preferences, Jeanette Marie Fox

Doctoral Dissertations

In psychology and education, the visual-verbal conceptual distinction is a widely studied bipolar contrast, and this distinction has been the subject of much debate. There are two main issues: One is a construct-validity issue related to the extent that scores from a test measuring the visual- and verbal-conceptual distinction accurately reflect the construct being measured, and the second one is an issue related to the use of different data analysis methods that collect and analyze the data from the visual and verbal measurements. To help resolve these issues, this study examined 21 individual intercorrelation matrices that were illustrative of the …

Reckoning With The Mortally Inevitable, Daniel C. Peterson

Interpreter: A Journal of Latter-day Saint Faith and Scholarship

Every human enterprise — even the best, including science and scholarship — is marred by human weakness, by our inescapable biases, incapacities, limitations, preconceptions, and sometimes, yes, sins. It is a legacy of the Fall. With this in mind, we should approach even the greatest scientific, cultural, and academic achievements with both grateful appreciation and humility. J. B. Phillips’s rendition of Paul’s words at 1 Corinthians 13:12 captures the thought nicely: “At present we are men looking at puzzling reflections in a mirror. The time will come when we shall see reality whole and face to face! At present all …

Full Issue

Inscape

No abstract provided.

Multi-Well Plate Channel Device With Reversible Seals, Haipeng Zhang, Timothy Wei, Sangjin Ryu

Department of Mechanical and Materials Engineering: Faculty Publications

Atherosclerosis is a cardiovascular disease which causes over 26,000 yearly deaths in the United States. This disease involves accumulation of substances in arterial walls (or plaques) that occurs frequently to arterial regions experiencing low shear stress, such as bends and bifurcations. A possible reason of plaque growth in arterial walls is the change of endothelial cell (EC)’s shape, which is related to fluid shear stresses tangentially acting on intimal layer (the EC surface) of the arterial wall. Lambert et al. studied the relationship between EC shape and shear stress (Lambert et al., 2019) using a BioFlux system (Fluxion Bioscienes) and …