Digital Commons Network^™

Can A Remote Sensing Approach With Hyperspectral Data Provide Early Detection And Mapping Of Spatial Patterns Of Black Bear Bark Stripping In Coast Redwoods?, Shayne R. Magstadt

Cal Poly Humboldt theses and projects

The prevalence of black bear (Ursus americanus) bark stripping in commercial redwood (Sequoia sempervirens) timer stands has been increasing in recent years. This stripping is a threat to commercial timber production because of the deleterious effects on redwood tree fitness. This study sought to unveil a remote sensing method to detect these damaged trees early and map their spatial patterns. By developing a timely monitoring method, forest timber companies can manipulate their timber harvesting routines to adapt to the consequences of the problem. We explored the utility of high spatial resolution UAV-collected hyperspectral imagery as a …

In-Flux: Economic And Community Adaptations Of Former Timber Mill-Towns In The American West, Cherilyn P. Ashmead

Cal Poly Humboldt theses and projects

Once built around natural resource extractive industries, rural communities’ economies are changing as the United States is transitioning away from its industrial past. While much research has focused on rural economic shifts from natural resource production toward amenity-driven economies (Morzillo et al., 2015; Winkler et al, 2007), less research has explored the economic and demographic trends in areas pursuing new modes of production. This two-part study focuses on an understudied region with historic ties to timber in dry mixed-conifer forests, much of which are under federal land management. With few natural amenity draws, the region has largely maintained production-based sectors. …

Response Of Invertebrate Drift To Dam-Release Restoration Pulse Flows From Lewiston Dam On The Trinity River, Ca, Jasmine S. Williamshen

Cal Poly Humboldt theses and projects

The widespread construction of dams to regulate rivers has dramatically altered aquatic ecosystems, but these impoundments also provide a unique opportunity to support freshwater conservation goals by implementing functional flow regimes designed to mitigate dam-related impacts on fisheries. Drifting invertebrates are an important food source for stream-dwelling juvenile salmonids such that drift feeding can be an energetically profitable foraging strategy, yet the effect of streamflow alterations on invertebrate drift dynamics is largely undetermined. Drift net samples were collected on four days before and four days during the ascending limb (14-42 m³/s) of restoration pulse flows in April 2020 …

Age, Political Affiliation, And Political Polarization In The United States, Anton Glocar

Williams Honors College, Honors Research Projects

This study analyzes the relationship between voter age and party affiliation with political polarization in the form of feelings towards both one’s own party and the opposing party. Using data from the 2020 American National Election Survey, the favorability ratings of voters from both parties towards both their own party and the opposing party were analyzed and grouped based on voter age. The results of this analysis indicate that positive feelings towards one’s own party and negative feelings towards the opposing party, and therefore polarization, tend to increase as age increases.

Southeast Michigan Wastewater Treatment Plants As Potential Sources Of Microplastic Pollution In The Rouge River And Huron River, Jennifer Troost

Master's Theses and Doctoral Dissertations

Plastic pollution is a global issue affecting the health and stability of freshwater and marine environments. Microplastics can be introduced into waterways from a variety of sources, such as agricultural runoff, anthropogenic litter, and wastewater treatment plants (WWTPs). To determine whether WWTPs are a source of microplastics to the Lower Rouge and Huron Rivers, we measured microplastic load upstream and downstream of two Southeast Michigan wastewater treatment plants: the Ann Arbor Wastewater Treatment Plant and Ypsilanti Community Utilities Authority (YCUA). Results from this study indicated that YCUA, which discharges into a small stream with limited watershed inputs, is a significant …

[Introduction To] Race, Removal, And The Right To Remain : Migration And The Making Of The United States / Samantha Seeley., Samantha Seeley

Bookshelf

This work explores the conflicts over migration at the center of the social, political, intellectual, and physical landscape of the early United States. Examining the voluntary and forced migrations of Indigenous, African American, and Anglo Americans in the decades immediately following the Revolution, Samantha Seeley argues that the United States took shape as a white republic through contentious negotiations over who could move and where, who could remain and how. Removal was not sweeping, top-down federal legislation. Instead, it was a battle fought on multiple fronts. It encompassed tribal leaders' attempts to expel white settlers from Native lands and African …

Inventing Dental Continuing Education: History Of The Dental Forum -- Milwaukee, Kenneth J. Waliszewski

School of Dentistry Faculty Research and Publications

Life-long learning is an ancient concept. The young are unaware of it. A beginning practitioner, often blinded by ego, ignores its value. The seasoned veteran, haunted by challenges, wonders how it passed him by. History can and does often teach us lessons. In 1787, Benjamin Franklin stood up to address the American Constitutional Convention and urged his fellow patriots to sign the document. At the age of 81, he was the oldest person in the group. He acknowledged having opened his mind to contrarian viewpoints from his younger colleagues. Franklin spoke these words: “If you are convinced that you know …

Synaptic Processes And Immune-Related Pathways Implicated In Tourette Syndrome, Douglas W. Woods

Psychology Faculty Research and Publications

Tourette syndrome (TS) is a neuropsychiatric disorder of complex genetic architecture involving multiple interacting genes. Here, we sought to elucidate the pathways that underlie the neurobiology of the disorder through genome-wide analysis. We analyzed genome-wide genotypic data of 3581 individuals with TS and 7682 ancestry-matched controls and investigated associations of TS with sets of genes that are expressed in particular cell types and operate in specific neuronal and glial functions. We employed a self-contained, set-based association method (SBA) as well as a competitive gene set method (MAGMA) using individual-level genotype data to perform a comprehensive investigation of the biological background …

Effects Of Bark Beetle Outbreaks On Forest Landscape Pattern In The Southern Rocky Mountains, U.S.A., Kyle C. Rodman, Robert A. Andrus, Cori L. Butkiewicz, Teresa B. Chapman, Nathan S. Gill, Brian J. Harvey, Dominik Kulakowski, Niko J. Tutland, Thomas T. Veblen, Sarah J. Hart

Geography

Since the late 1990s, extensive outbreaks of native bark beetles (Curculionidae: Scolytinae) have affected coniferous forests throughout Europe and North America, driving changes in carbon storage, wildlife habitat, nutrient cycling, and water resource provisioning. Remote sensing is a cru-cial tool for quantifying the effects of these disturbances across broad landscapes. In particular, Landsat time series (LTS) are increasingly used to characterize outbreak dynamics, including the presence and severity of bark beetle-caused tree mortality, though broad-scale LTS-based maps are rarely informed by detailed field validation. Here we used spatial and temporal information from LTS products, in combination with extensive field data …

Toward The Development Of Deep Learning Analyses For Snow Avalanche Releases In Mountain Regions, Yunzhi Chen, Wei Chen, Omid Rahmati, Fatemeh Falah, Dominik Kulakowski, Saro Lee, Fatemeh Rezaie, Mahdi Panahi, Aref Bahmani, Hamid Darabi, Ali Torabi Haghighi, Huiyuan Bian

Geography

Snow avalanches impose a considerable threat to infrastructure and human safety in snow bound mountain areas. Nevertheless, the spatial prediction of snow avalanches has received little research attention in many vulnerable parts of the world, particularly in developing countries. The present study investigates the applicability of a stand alone convolutional neural network (CNN) model, as a deep learning approach, along with two metaheuristic algorithms including grey wolf optimization (CNN-GWO) and imperialist competitive algorithm (CNN-ICA) in snow avalanche modelling in the Darvan watershed, Iran. The analysis was based on thirteen potential drivers of avalanche occurrence and an inventory map of previously …

Assessment Of Empirical And Semi-Analytical Algorithms Using Modis-Aqua For Representing In-Situ Chromophoric Dissolved Organic Matter (Cdom) In The Bering, Chukchi, And Western Beaufort Seas Of The Pacific Arctic Region, Melishia I. Santiago, Karen E. Frey

Geography

We analyzed a variety of satellite-based ocean color products derived using MODIS-Aqua to investigate the most accurate empirical and semi-analytical algorithms for representing in-situ chromophoric dissolved organic matter (CDOM) across a large latitudinal transect in the Bering, Chukchi, and western Beaufort Seas of the Pacific Arctic region. In particular, we compared the performance of empirical (CDOM index) and several semi-analytical algorithms (quasi-analytical algorithm (QAA), Carder, Garver-Siegel-Maritorena (GSM), and GSM-A) with field measurements of CDOM absorption (aCDOM) at 412 nanometers (nm) and 443 nm. These algorithms were compared with in-situ CDOM measurements collected on cruises during July 2011, 2013, 2014, 2015, …

Female Pacific Walruses (Odobenus Rosmarus Divergens) Show Greater Partitioning Of Sea Ice Organic Carbon Than Males: Evidence From Ice Algae Trophic Markers, Chelsea W. Koch, Lee W. Cooper, Ryan J. Woodland, Jacqueline M. Grebmeier, Karen E. Frey, Raphaela Stimmelmayr, Cédric Magen, Thomas A. Brown

Geography

The expected reduction of ice algae with declining sea ice may prove to be detrimental to the Pacific Arctic ecosystem. Benthic organisms that rely on sea ice organic carbon (iPOC) sustain benthic predators such as the Pacific walrus (Odobenus rosmarus divergens). The ability to track the trophic transfer of iPOC is critical to understanding its value in the food web, but prior methods have lacked the required source specificity. We analyzed the H-Print index, based on biomarkers of ice algae versus phytoplankton contributions to organic carbon in marine predators, in Pacific walrus livers collected in 2012, 2014 and 2016 from …

Educators' Perceptions Of Using Twitter As A Professional Development Tool, Bradford Lusk

Master's Theses and Doctoral Dissertations

Educator professional development has the power to affect day-to-day educational practice. Every school district wrestles with planning professional development for improving educators professionally to better student achievement. With the largest portion of the budget being spent on personnel, developing educators and staff professionally should be a school district’s main priority. Taking into consideration the nature of adult learners and changes in educational and technological resources, professional development is ripe for a change. The purpose of this case study was to explore educators’ perceptions of using Twitter to receive and engage in professional development over a five-week period. Interviews of the …

A Métis Wife's Tale: Race, Womanhood, And Adaptation To Settler Colonialism In The Diaries Of Mary Hobart Williams, Rachael Schnurr

Master's Theses and Doctoral Dissertations

As the War of 1812 drew to a stalemate, the American government began the process of state formation in the "Old Northwest," which put political, economic, and cultural pressures on the indigenous population. Among the Anishinaabeg, Menominee, Ho-Chunk, and other Native inhabitants, however, were fifty-three communities of mixed ancestry produced by the fur trade: the Great Lakes Metis. This project looks at the ways the Metis of Green Bay adapted to the pressures of settler colonialism through the nineteenth century. In particular, it uses the diaries of a French-Menominee woman named Mary Hobart Williams to identify examples of "survivance, "or …

If Not Otitis Externa...Then What?, Elizabeth A. Flasch, Sadia Ansari, Timothy Martin

College of Nursing Faculty Research and Publications

Ear pain is one of the most common presentations in urgent care, especially among pediatric patients. Further, acute otitis media (AOM) is the most common condition for which antibacterial agents are prescribed for children in the United States. Clinician visits make up 634 per 100 children during 2005-2006. It is imperative that clinicians differentiate AOM from new onset of otorrhea not due to acute otitis externa (AOE), the most common diagnoses made by clinicians with regional variations based on age and geography.1

The majority of AOE-related visits occur during the summer months (June through August); visits occur most commonly in …

Piercing The Veil: Examining Demographic And Political Variables In State Foi Law Administration, A.Jay Wagner

College of Communication Faculty Research and Publications

State and local governments play an important, and growing, role in everyday lives. The exploratory study positions FOI laws as a central mechanism in providing transparency to these more proximate governments. It is premised on a FOI audit, or field experiment, of 1002 requests across 9 U.S. state laws and 334 jurisdictions. The sample represents a broad cross-section of geographic, demographic and political variables, and the study analyzes these variables predictive and correlative value in determining outcomes, timeliness and communication in FOI requests. The results suggest significance in race and political variables in FOI outcomes and processes. The study's strongest …

The Gospel For Everyone: A Study In The Gospel Of Luke On The Inclusion Of Marginalized Social Groups, Hebert Davi Liessi

All Books

Salvation is a broad and controversial issue. The author of the third gospel, Luke, wrote in a socially inclusive approach to Jesus Christ's salvation. His focus is that the gospel serves all people, including groups marginalized by society to dominant groups. Through reading this book, you can see the social groups, the different methodologies, and the results of the salvation offered by Jesus Christ.