Digital Commons Network^™

Salmon As An Ecological Pathway Of Contaminants Into Alaskan Food Webs, Miranda Brohman, Gretchen Roffler, Dimitri G. Giarikos, David Kerstetter, Amy C. Hirons

SECLER Data

Salmon are important fish taxa for humans and animals in hemiboreal and subarctic ecosystems. Trace elements and their marine food web bioaccumulation raises biomagnification and potential human health risk concerns. Sixteen trace element concentrations and their health risk assessments were determined in seven different tissues of two Southeast Alaska salmon species (chum, Oncorhynchus keta and pink, Oncorhynchus gorbuscha). Chum tissues had overall higher trace element concentrations compared to pink, which may be attributed to a difference of diets, generally longer-lived and spending more time in the open ocean. All kidney and liver samples exceeded the tolerable daily intake for …

Functional Characterization Of Cryopreserved Plasmodium Yoelii Sporozoites In Vitro, Victoria I. Mills

USF Tampa Graduate Theses and Dissertations

Malaria is a major global health burden, contributing to morbidity and mortality across various continents. Due to challenges in malaria research and its advancements, developing novel interventions and further understanding host-parasite interactions is required for future studies. Plasmodium vivax is a human malaria species that is difficult to maintain in laboratory settings, posing obstacles in research. Cryopreservation offers a reliable method to provide a consistent supply of sporozoites for reproducible studies. Plasmodium yoelii is a rodent malaria model commonly used in studies due to its genetic similarity to human malaria species. Utilizing cryopreserved P. yoelii sporozoites potentially extends their usability …

Cranial Radiation Disrupts Dopaminergic Signaling And Connectivity In The Mammalian Brain, Die Zhang, Riya Thomas, Thanh Thai Lam, Ines Veselinovic, David R Grosshans

Faculty, Staff and Student Publications

Cognitive impairment is a common and challenging side effect of cranial radiation therapy for brain tumors, though its precise mechanisms remain unclear. The mesocortical dopaminergic pathway, known to play a key role in cognitive function, is implicated in several neuropsychiatric disorders, yet its involvement in radiation-induced cognitive dysfunction is unexplored. Here, with using in vivo multi-electrode array recordings of both anesthetized and free-moving rats to monitor the firing activities of dopamine neurons in the ventral tegmental area (VTA) and local field potentials in both the prefrontal cortex (PFC) and VTA, as well as the immunofluorescence assays and western blotting, we …

Neuropeptide-Dependent Spike Time Precision And Plasticity In Circadian Output Neurons, Bryan Chong, Vipin Kumar, Dieu Linh Nguyen, Makenzie A. Hopkins, Faith S. Ferry, Lucia K. Spera, Elizabeth M. Paul, Anelise N. Hutson, Masashi Tabuchi

Faculty Scholarship

Circadian rhythms influence various physiological and behavioral processes such as sleep–wake cycles, hormone secretion, and metabolism. In Drosophila, an important set of circadian output neurons is called pars intercerebralis (PI) neurons, which receive input from specific clock neurons called DN1. These DN1 neurons can further be subdivided into functionally and anatomically distinctive anterior (DN1a) and posterior (DN1p) clusters. The neuropeptide diuretic hormones 31 (Dh31) and 44 (Dh44) are the insect neuropeptides known to activate PI neurons to control activity rhythms. However, the neurophysiological basis of how Dh31 and Dh44 affect circadian clock neural coding mechanisms underlying sleep in Drosophila is …

Montana Kaimin, March 13, 2025, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Closing Ceremony Speech, S. Ray Smith

IGC Proceedings (1977-2023)

No abstract provided.

Volume 29-1 Complete Issue, Robert M. Ward

The Geographical Bulletin

Volume 29-1 Complete Issue

Electric Power Generation From The Direct Combustion Of Feedlot Waste, Byron Augustin, Mark Bockenhauer

The Geographical Bulletin

Energy consumption in this nation over the past 100 years has been closely tied to non-renewable fuel sources. However, in the past 10 to 15 years, a number of energy planners have suggested that our future energy needs should be met by increasing our dependence on renewable energy sources. One such renewable energy source is livestock waste. Most of the research involving the utilization of livestock waste has been concentrated in the field of anaerobic digestion to produce methane gas (1). However, the purpose of this paper is to examine a new commercial use of animal waste with a process …

Wizard, Demon, Cat; Reformer, Satanist, Bureaucrat: A Diachronic Analysis Of Three Modes Of Sauron In The Legendarium In Light Of The Book Of Lost Tales, Cameron Bourquein

Journal of Tolkien Research

This paper argues that Sauron is a metatextual shape-shifter. Through diachronic analysis it identifies and charts three distinct “modes” of Sauron coexisting in Tolkien’s legendarium. While Sauron’s most robust First Age appearance (in the tale of Beren and Lúthien) remained relatively unchanged from his introduction in the 1920s until Tolkien’s death, Sauron’s role in the Legendarium expanded significantly across Tolkien’s lifetime as Sauron became the primary antagonist of two additional Ages of Middle-earth. Some of the evolutions that accompanied this expansion are not retroactively reflected in the tales already written, hence these “modes” of Sauron could be said to remain …

Land Tenure And Range Management Practices In The Northern Kansas Flint Hills, Stanley Wilds, M. Duane Nellis

The Geographical Bulletin

The only extensive tallgrass prairie remaining in North America is in the Kansas Flint Hills. The Flint Hills contain such high levels of local relief and rocky soils that is has been more suitable for grazing than cultivation. This research provides an understanding of the relationship between type of land tenure and land use decisions in the northern Flint Hills. The influence of land tenure on the management strategies of burning, stocking rates and grazing system relates most significantly to land ownership parcel size. Small land holders were less likely to use fire or change stocking rates and grazing system …

Strategies Of Fertilizer Nitrogen Applications To Grassland For Beef: Effects On Production And Soil Mineral Nitrogen, N M. Titchen, R J. Wilkins, L Philipps, D Scholefield

IGC Proceedings (1977-2023)

Experiments in Britain have shown beef production increases with fertilizer-N application to grazed grassland up to at least 300 kg N/ha (Wilkins et al., 1987; Baker and Mayne, 1988). However in view of the small offtake of N in the animal products (c.30 kg/ha) there is increased concern on the fate of the applied N, particularly in relation to loss of nitrate by leaching (Garwood and Ryden, 1986). This paper reports a 3-year experiment which examined the impact on production and on N movements of different strategies of fertilizer-N appli­cation and of the effects of removing grazing livestock at the …

What Did Scotus Do To Wotus?, Hailey Rizzo

Ocean and Coastal Law Journal

The term “waters of the United States” has sparked half a century of debate among policymakers, judges, Supreme Court Justices, the Environmental Protection Agency, and the Army Corps of Engineers, culminating in the Supreme Court’s 2023 decision in Sackett v. Environmental Protection Agency. This Article chronicles the interpretive history of “waters of the United States” within the context of wetlands and discusses the broader implications of the Sackett decision on the nation’s water bodies.

On Speaking For The People: Native Writing And The Question Of Political Form, Shelby Johnson

Criticism

Speaking for the People: Native Writing and the Question of Political Form by Mark Rifkin. Durham, NC: Duke University Press, 2021. Pp. 320. $28.95 paperback.

F.A.O Design K*B*P Trials In The Mid-Altitude Zone Of Yunnan Province, Southern China, J Bruce-Smith, Yang Guo-Rong, Huang Bi-Zhi, Li Ji-Xin

IGC Proceedings (1977-2023)

The Project is investigating the development of « improved pastures » as a practical way to increase ruminant livestock production. Some preliminary results of fertilizer requirements, indicated that K and B may be required as well as P (Wang el al., 1985) for the establishment of such pastures in this mid-alti­tude (2,000 m) transitional sub-tropic-temperate zone of Yunnan. The objective of this paper is to present some experiences from applying the Hauser (1971) truncated fac­torial design trials (widely used by FAO to obtain N, P, K, fert­ilizer recommendations for cereal crops) to a pasture establish­ment situation where P. K and …

Effect Of Nitrogen Fertilization In Combination With Potassium And Phosphorus And Cutting Frequency On The Yield Of Brachiaria Ruzizensis In Adamawa, Cameroon, E T. Pamo, D Pieper

IGC Proceedings (1977-2023)

Fertilizers have been shown to increase forage yields under some conditions (Owensby and Smith, 1975), but has very little effect under other conditions (Stoddart et al., 1975). Thus in recent years a great deal of attention has been focussed on the ways and possibilities of increasing forage production by fertil­ization. Various experiments have been conducted on the response of Brarhiaria ruziziensis Germain and Evrad, one of the best perennial forage grasses of the region, to fertilization at Wakwa Animal Research Station. Yonkeu et al., (1986) indicated that application of phosphorus did not lead to improved yield of the forage on …

The Influence Of Cow Manure On Forage Yields Of King Grass In A Ferrasol In Cuba, G Crespo, M Oduardo

IGC Proceedings (1977-2023)

Experiments conducted in sandy and brown soils in Cuba demonstrated the beneficial effect of manure for accelerating the establishment of forage plants, and the possibility of dimi­nishing up to 50 % the dosage of N fertilizer requirements to obtain maximum forage yield (Crespo and Diez 1978; Crespo and Arteaga 1984). The aims of the present experiments were: a) to determine the best time of application of cow manure and b) to learn the influence of manure and nitrogenous fertilizer on forage yield of king grass in a ferrasol soil.

Ethics Of Care: Applying Cultural Protocols To Indigenous Sound Recordings, Jolene D. Manus

Journal of Western Archives

The University of New Mexico, College of University Libraries and Library Sciences, endorsed The Protocols for Native American Archival Materials in 2020. This case study explores the use of an Ethics of Care approach, prioritizing Indigenous cultural protocols for Indigenous sound recordings housed within the archival collections of the Center for Southwest Research and Special Collections (CSWR). The CSWR staff sought guidance from local tribal nations when CSWR patrons requested the duplication of cultural songs, cultural oral histories, and/or interviews. Tribal Historic Preservation Offices, tribal cultural rights departments, and specified tribal persons identified by tribes as cultural experts reviewed the …

Measuring Perceived Stress Levels And Physiological Variables In Undergraduate College Students: A Quasi-Experimental Study, Sarah J. Milner

The Interactive Journal of Global Leadership and Learning

This study aimed to analyze changes in perceived stress and physiological variables in undergraduate students over one semester. A quasi-experimental study was conducted using non-random convenience sampling with 30 undergraduate students enrolled in an Introduction to Stress Management class at a small, regional institution in the upper Midwest in the fall of 2022.

Data collection included the use of the Perceived Stress Scale (i.e., PSS-10) and stress physiological variables (e.g., heart rate, breathing pattern, respiration rate). Participants were surveyed three times using pre-, mid-, and post-treatment assessments but ultimately, participants’ pre- and post-treatment surveys were compared. Both descriptive statistics and …

Unh Research Shows Nerve Cells Move Backward To Reposition Contributing To Brain Evolution, Robbin Ray

Media Relations

No abstract provided.

Pilliod V. Monsanto Company: Weeding Out Harmful Ingredients, Isabel Rickman

The Appendix, Journal of Health Care Law & Policy

No abstract provided.

Remaking A Monument: The Troubled Meaning Of Fascist Remains In Contemporary Spain, David Divita

Pomona Faculty Publications and Research

The Valley of Cuelgamuros, until recently known as the Valley of the Fallen, lies about 35 miles outside of Madrid. Inaugurated by the dictator Francisco Franco in 1959, this landmark comprises a vast underground basilica and houses the mostly anonymous remains of 34,000 Spaniards who died during the civil war (1936–1939) and its repressive aftermath. Since the early 2000s, the Valley has been a political lightning rod in a country that has long struggled with how to address the legacies of its authoritarian past. Ongoing debates among politicians, scholars, and journalists have revolved around the possibility of the Valley’s ‘resignification’ …

The Antelope, University Of Nebraska At Kearney

The Antelope

No abstract provided.

Introducing A Novel Figure Of Merit For Evaluating Stability Of Perovskite Solar Cells: Utilizing Long Short-Term Memory Neural Networks, Zahraa Ismail, Ahmed Alali, Mahmoud Ashraf, Ahmad Muhammad, Sameh O. Abdellatif

Electrical Engineering

This study introduces a novel figure of merit for evaluating the stability of perovskite solar cells (PSCs) by employing advanced Long Short-Term Memory (LSTM) neural networks to investigate degradation mechanisms. By harnessing the power of artificial intelligence and data analytics, we analyzed extensive datasets encompassing PSC parameters, experimental results, and environmental conditions, revealing critical insights into the degradation patterns affecting cell performance over time. Our findings indicate that the LSTM model effectively captures and predicts the complex relationships between key design parameters—efficiency, fill factor, and open-circuit voltage—and degradation-induced changes in PSCs. Specifically, we identified three degradation coefficients associated with the …

Floodfriend, Lauren Watson

College of Computing and Digital Media Dissertations

Floodfriend is a two-dimensional puzzle-platformer game with two main characters that are trying to navigate their way out of a cave system. The player controls both the human and the monster of the duo: the hiker responds to direct arrow key input, while the monster can only be persuaded by using the hiker’s flashlight to swim and climb to otherwise inaccessible areas. The game is equal parts a simulation and a toy, encouraging the player to try different methods of interaction to garner the results they want to see. From a design perspective, the game is centered on the push …

Male Sexual Struggles: A Healing Journey, Todd E. Henley

Doctor of Leadership

My Need Problem or Opportunity (NPO) is that Christian men who commit adultery or engage in pornography are in desperate need of help to heal and be restored by the churches in Parkesburg and Coatesville, Pennsylvania.

One key insight from my research is that churches have continuously struggled to support the men in their congregations as they navigate the challenging journey of healing from issues like pornography and adultery. Through the perspectives of my stakeholders, it became evident that many men often remain unaware of how their past experiences impact their current struggles. Additionally, many carry a deep sense of …

The Lumberjack, March 12, 2025

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Control Of Clostridioides Difficile Virulence And Physiology By The Flagellin Homeostasis Checkpoint Flic-Fliw-Csra In The Absence Of Motility, Duolong Zhu, Katherine J Wozniak, Firas Midani, Shaohui Wang, Xingmin Sun, Robert A Britton

Faculty, Staff and Students Publications

Mutations affecting Clostridioides difficile flagellin (FliC) have been shown to be hypervirulent in animal models and display increased toxin production and alterations in central metabolism. The regulation of flagellin levels in bacteria is governed by a tripartite regulatory network involving fliC, fliW, and csrA, which creates a feedback system to regulate flagella production. Through genomic analysis of C. difficile clade 5 strains (non-motile), we identified they have jettisoned many of the genes required for flagellum biosynthesis yet retain the major flagellin gene fliC and regulatory gene fliW. We therefore investigated the roles of fliC, fliW …

Influence Of Inselbergs On Bat Diversity In Afrotropical Ecosystems, Amanda Lee Grunwald

Dissertations and Theses

Humans are altering biological communities on local to global scales, driving profound changes in biodiversity and ecosystem functioning. However, significant gaps and biases in biodiversity data hinder our understanding of ecosystem interactions, making it challenging to develop effective, data-driven policies to protect remaining biodiversity. Bats, the second most species-rich groups of mammals, have a global distribution, and perform a broad array of vital ecosystem functions. Their diversity peaks in the tropics, where they often constitute more than 50% of mammal species diversity. The Afrotropics host substantial bat diversity, yet have historically been perceived as having lower species richness compared to …

Continuous Exposure To An Aversive Mixture: A Means Of Maintaining Aversion In Sheep Averted To Geigeria Ornativa O. Hoffm. (Vermeerbos) - An Assessment, Leendert D. Snyman

Poisonous Plant Research (PPR)

Establishing aversion to Geigeria ornativa only lasts for some time, after which the induced aversion disappears and sheep start eating G. ornativa again. This behavior is aggravated by the social influence of non-averted sheep in mixed grazing situations. Exposing sheep continuously to a so-called “aversive mixture”, containing an aversive substance (lithium chloride) and the sensory characteristics of the plant (hexane extract of G. ornativa) mixed with a tasty meal (maize meal), following an initial aversion treatment, resulted in sustained aversion to G. ornativa in the field. This method proved to be applicable to mixed grazing situations with averted and …

The Expression Profile Of The Rank/Rankl/Opg Pathway In Breast Cancer Stem Cells Isolated From Breast Cancer Cell Lines, Mohamed M. Kamal, Hassnaa H. Elgohary, Sherine Maher Rizk, Nadine H. Maurice

Pharmacy

The RANK/RANKL/OPG signaling pathway plays a crucial role in breast cancer progression and metastasis. However, its expression patterns and potential implications in breast cancer stem cells remain poorly understood. This study aimed to characterize the expression profile of this pathway in breast cancer stem cells isolated from two distinct breast cancer cell lines: MDA‐MB‐231 and MCF‐7. Mammospheres (MS), representing breast cancer stem cells, were generated using agar‐coated 6 well tissue culture plates in suitable mammospheres culture conditions. Flow cytometric analysis showed enrichment of the CD44+/ CD24− subpopulations in the mammospheres cultures, with MDA‐MB‐231 exhibiting a higher percentage compared to MCF‐7. …