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2024

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Water Quality Assessment Of Three Ponds In The Plaster Creek Watershed, Orin Daspit, Salome Giessmann, Kennedi Pepin, Andrew Slagter, Sydney Wagenmaker Dec 2024

Water Quality Assessment Of Three Ponds In The Plaster Creek Watershed, Orin Daspit, Salome Giessmann, Kennedi Pepin, Andrew Slagter, Sydney Wagenmaker

Student Papers and Reports

Ponds are commonly found in urban areas serving as both an aesthetic and ecological feature. The water quality of these ponds can make important contributions to the overall health of the watershed in which they reside. This study analyzes three ponds within the Plaster Creek Watershed: the Southbridge Condominium Association Pond, the Calvin University Seminary Pond, and the Calvin University Ecosystem Preserve Kettle Swamp. This project aims to provide the Southbridge Condo Association with data that will inform future remediation actions. Using water samples collected over three days, E. coli, pH, nutrients, and total dissolved solids were measured in each …

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Kinetics Model Of Cananga (Cananga Odorata) Fresh Flower Extraction Using Microwave Hydrodistillation Method, Darnengsih Darnengsih, Hikmatun Ni’Mah, Mahfud Mahfud, Ayu Chandra Kartika Fitri Dec 2024

Kinetics Model Of Cananga (Cananga Odorata) Fresh Flower Extraction Using Microwave Hydrodistillation Method, Darnengsih Darnengsih, Hikmatun Ni’Mah, Mahfud Mahfud, Ayu Chandra Kartika Fitri

Makara Journal of Science

Recent studies have focused on improving essential oil extraction methods by incorporating advanced technologies, such as microwave-assisted hydrodistillation (MHD). Despite these advancements, further research is necessary to fully understand how different kinetic models influence extraction efficiency. This study evaluates several kinetic models for extracting essential oil from fresh Cananga flowers using MHD, examining how varying microwave power affects extraction rates and correlates with kinetic model parameters. The extraction process involved introducing 200 grams of fresh Cananga flowers in 400 mL of distilled water and subjecting the mixture to microwave power levels of 200 W, 400 W, and 600 W. The …

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Morphological And Molecular Identification Of Saurida Spp. (Teleostei: Synodontidae) From Saudi Arabia And Indonesia, Muhammad Browijoyo Santanumurti, Suciyono Suciyono, Mohamed Ahmed Abu El-Regal Dec 2024

Morphological And Molecular Identification Of Saurida Spp. (Teleostei: Synodontidae) From Saudi Arabia And Indonesia, Muhammad Browijoyo Santanumurti, Suciyono Suciyono, Mohamed Ahmed Abu El-Regal

Makara Journal of Science

Saurida is a unique fishery commodity because it is difficult to differentiate visually. They can be only effectively con-served once accurately identified. This study aimed to determine the morphology and molecular characteristics of Sau-rida spp. from Banyuwangi (Indonesia) and Jizan (Saudi Arabia). Meristic and morphometric analysis was performed for morphological identification, whereas COI gene analysis was performed for molecular identification. Morphological analysis was performed to identify Saurida in this study, such as S. tumbil (Jizan, Saudi Arabia) and S. micropectoralis (Banyuwangi, Indonesia). S. tumbil did not have dark brown spots on the lateral line and upper caudal fin, whereas S. …

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Mnsod Gene Knockout Promotes Apoptosis In Triple-Negative Breast Cancer Bt-549 Cells Through Survivin Inhibition And Caspase-3 And Caspase-9 Modulation, Niken Rahmah Ghanny, Septelia Inawati Wanandi, Sekar Arumsari, Rafika Indah Paramita, Resda Akhra Syahrani, Putu Indah Paramita Adi Putri Dec 2024

Mnsod Gene Knockout Promotes Apoptosis In Triple-Negative Breast Cancer Bt-549 Cells Through Survivin Inhibition And Caspase-3 And Caspase-9 Modulation, Niken Rahmah Ghanny, Septelia Inawati Wanandi, Sekar Arumsari, Rafika Indah Paramita, Resda Akhra Syahrani, Putu Indah Paramita Adi Putri

Makara Journal of Science

Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype characterized by the lack of estro-gen, progesterone, and human epidermal growth factor receptor 2 (HER2) receptors. TNBC cells are becoming more aggressive due to the high expression of manganese superoxide dismutase (MnSOD) antioxidants to suppress reactive oxygen species-induced apoptosis and promote oncogenic signaling. This study was aimed to evaluate the effects of MnSOD knockout (KO) on TNBC cell apoptosis by assessing the survivin, caspase-9, and caspase-3 expressions. BT-549 TNBC cells containing the clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9-edited MnSOD gene were used to evaluate the messenger RNA (mRNA) …

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Observations On The Biodegration By Solid State Fermentation Of The Giant Swamp Taro (Cyrtosperma Merkusii) Biomass By Two Endolichenic Fungi Isolates, Maria Helena, Helen Joan Lawalata, Dino Rahardiyan, Livana Dethris Rawung, Emma Mauren Moko Dec 2024

Observations On The Biodegration By Solid State Fermentation Of The Giant Swamp Taro (Cyrtosperma Merkusii) Biomass By Two Endolichenic Fungi Isolates, Maria Helena, Helen Joan Lawalata, Dino Rahardiyan, Livana Dethris Rawung, Emma Mauren Moko

Makara Journal of Science

Giant swamp taro (GST/Cyrtosperma merkusii), a local North Sulawesi coastal plant, is underutilized but has high po-tential for cultivation as a paludiculture plant on rewetted peatland restorations. GST has high starch content and is currently being explored for potential use. This study explored the potential of using the biomass pulp yielded as resi-dues of the starch extraction process. Endolichenic fungi (Trichoderma reesei and Aspergillus aculeatus) isolated from local lichens, were inoculated on the GST biomass in a solid state fermentation (SSF). Findings of this study indicate that both isolates were effective in degrading the lignocellulosic biomass of GST over an …

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The Biopiracy Of Traditional Knowledge In United States Patent Law, Hannah Green Dec 2024

The Biopiracy Of Traditional Knowledge In United States Patent Law, Hannah Green

Public Land & Resources Law Review

The United States intellectual property (“IP”) system is deeply intertwined with our country’s history and constitution. t is foundational in favoring young American inventors. George Washington signed the first patent act in 1790 in hopes of promoting the innovation and progress of science and useful arts. Yet, our patent system was also built around the Western tradition of individualism and competition, which failed to recognize the communal nature and traditional knowledge of tribal communities. This disparity allows the biopiracy of traditional knowledge to be lawful. This comment will explore the harmful toll that United States patent law has taken on …

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The Influence Of Heat Therapy On Redox Signaling In Skeletal Muscle, Kimberly Miriam Richard Dec 2024

The Influence Of Heat Therapy On Redox Signaling In Skeletal Muscle, Kimberly Miriam Richard

Theses and Dissertations

Reactive oxygen species (ROS) have been identified as crucial signaling molecules in skeletal muscle adaptations to exercise and signal for protective pathways within the myofiber. Pathological heat stress studies in animals demonstrate the ability of heat to increase ROS production in skeletal muscle. Limited data on the influence of therapeutic heat on ROS production and redox signaling in human skeletal muscle exists in the literature. The purpose of this study was to assess ROS production and redox signaling in human skeletal muscle following an acute, therapeutic bout of heat treatment. We hypothesized that heat would create an oxidized environment within …

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Phosphorus Adsorption Capacity Of Volcanic Scoria, Easton Jeffrey Perkins Dec 2024

Phosphorus Adsorption Capacity Of Volcanic Scoria, Easton Jeffrey Perkins

Theses and Dissertations

Phosphorus (P) pollution in stormwater runoff poses a significant threat to water quality, contributing to eutrophication and ecosystem degradation. This research evaluates the potential of volcanic scoria (VSco), an abundant and cost-effective resource in Utah, USA, to influence P concentrations in urban stormwater systems. Batch adsorption experiments examined the behavior of VSco across three particle sizes—fine (<0.841 mm), medium (0.841–2 mm), and granular (2.38–9.5 mm)—under conditions mimicking stormwater scenarios. The results reveal that fine VSco exhibited higher adsorption efficiency than medium and granular sizes, achieving notable P removal at higher concentrations. However, at lower concentrations, fine VSco showed potential for P release due to desorption of pre-existing P. Medium and granular VSco showed minimal adsorption capacity and, in some cases, acted as P sources, highlighting a dual potential depending on stormwater conditions. Adsorption isotherms indicate that the adsorption behavior of fine VSco aligns with the Langmuir model, with a finite and relatively low adsorption capacity. Calculated distribution coefficient (Kd) values for fine VSco ranged from 0.04 to 0.005 L/g, indicating weak adsorption efficiency compared to materials like activated carbon (1–10 L/g) or soils with moderate adsorption capacity (0.1–0.5 L/g). Loss-on-ignition tests confirmed that VSco’s performance is driven by its physical and chemical properties, particularly its calcium content, rather than organic matter. The study emphasizes caution in applying fine VSco for stormwater remediation due to its potential to release P under typical runoff conditions. However, fine VSco may still be viable in specific scenarios where P levels are higher, such as in stormwater hotspots or localized areas with elevated concentrations, allowing for targeted remediation. The research underscores the need for further testing to refine VSco’s applications, particularly in low-impact development (LID) practices, such as infiltration basins and rain gardens, to effectively manage P levels while supporting ecological and aesthetic goals. These findings contribute to understanding the complex role of VSco in urban stormwater systems, offering insights for sustainable water quality management and nutrient cycling in urban landscapes.

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Bat Activity Across Urban Forest Plantings In Lexington, Kentucky, Grayson Marie Collier Dec 2024

Bat Activity Across Urban Forest Plantings In Lexington, Kentucky, Grayson Marie Collier

Online Theses and Dissertations

Urbanization has led to major forest loss and negatively impacts ecosystem services. Urban reforestation efforts, such as Reforest the Bluegrass (RTB) in the Lexington-Fayette metropolitan area of Kentucky, have been implemented to address these negative effects, and to create habitat for forest-dependent wildlife such as bats. My research focused on assessing differences in bat activity across a 20-year chronosequence of RTB sites. Acoustic detectors were deployed across 10 different-aged plantings at 60 randomly-defined detector locations. Each planting was surveyed across 8 sampling periods from May – August 2023. Each recording session spanned ca. 7 consecutive nights, yielding a total of …

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3d Reconstruction Method Of Tunnel Surrounding Rock Fracture Based On Vtk, Liu Houxiang, Su Heng Dec 2024

3d Reconstruction Method Of Tunnel Surrounding Rock Fracture Based On Vtk, Liu Houxiang, Su Heng

Journal of China & Foreign Highway

Fracture parameters are important reference factors for surrounding rock stability analysis.To realize the visualization analysis of surrounding rock fractures，this paper proposed a three-dimensional （3D） reconstruction method of surrounding rock fractures based on the visualization toolkit （VTK）.Firstly，the collected tunnel surrounding rock images were preprocessed by OpenCV for image grayscale and noise reduction.Secondly，the Otsu method and the open operation in morphology were used to segment the image，and the complete surrounding rock fracture map was obtained.Then，the median method was used to replace the linear interpolation method with the traditional Marching Cubes algorithm in VTK to calculate the equivalent point，and the improved Marching Cubes …

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Functional Characterization Of Haloarchaeal Udp-Glucose 4-Epimerase And 3-Hydroxybutyryl-Coa Dehydrogenase Genes In Nicotiana Tabacum, Çi̇ğdem Otur, Sezer Okay, Aslihan Kurt Kizildoğan Dec 2024

Functional Characterization Of Haloarchaeal Udp-Glucose 4-Epimerase And 3-Hydroxybutyryl-Coa Dehydrogenase Genes In Nicotiana Tabacum, Çi̇ğdem Otur, Sezer Okay, Aslihan Kurt Kizildoğan

Turkish Journal of Botany

The objective of the studyAbiotic stress poses a significant threat to plant survival. In response to the challenging conditions, plants have evolved various resistance mechanisms. Recently, genetic strategies have become increasingly prevalent in efforts to enhance abiotic stress tolerance and develop stress-resistant plant varieties. In this study, we employed heterologous expression of two metabolism-related haloarchaeal genes in the Nicotiana tabacum genome to improve its mechanism for salt and drought tolerance.Experimental procedure(s)The U2642 and CL165 genes encoding 3-hydroxybutyryl-CoA dehydrogenase and UDP-glucose 4-epimerase, respectively, were subcloned into the pIPKb004 vector under the control of Cauliflower mosaic virus 35S (CaMV35S) promoter using the …

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Fine-Scale Spatial Patterns Of Gelatinous Zooplankton In The Northern Gulf Of Alaska, Hannah E. Kepner Dec 2024

Fine-Scale Spatial Patterns Of Gelatinous Zooplankton In The Northern Gulf Of Alaska, Hannah E. Kepner

Oceanography

The Northern Gulf of Alaska (NGA) is characterized by high variability across spatial and temporal scales. In the NGA, zooplankton are a crucial link between primary production and higher trophic levels. Understanding the mechanisms that structure zooplankton assemblages is important to our overall understanding of ecosystem functioning. Nonetheless, thorough description of zooplankton abundance and distribution patterns is challenging due to the inherent variability and complexity of the marine environment. The study of gelatinous zooplankton is further complicated by the limitations of traditional plankton net sampling methods that are inefficient for the collection of high-resolution spatiotemporal data and often inflict damage …

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Creating A Digital House Of Knowledge: Ensuring The Continuation And Integrity Of Indigenous Knowledge Transfers In The Digital Era, Jacquelyn C. Cordova Dec 2024

Creating A Digital House Of Knowledge: Ensuring The Continuation And Integrity Of Indigenous Knowledge Transfers In The Digital Era, Jacquelyn C. Cordova

Indigenous Studies

Traditional Indigenous knowledge transfer systems have contributed to the sustainability of highly advanced Indigenous societies since time immemorial. These systems have been purposefully targeted since European arrival to the Americas in the late 1400s and early 1500s, consequently creating barriers for Indigenous Peoples as they strive to conduct their traditional knowledge transfer processes within their communities. These barriers, paired with the continual rise and use of global technologies, have created circumstances where many Native Elders and Knowledge Keepers experience difficulty reaching their youth and community members to ensure the successful transfer of Indigenous data and knowledge to current and future …

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Effects Of Juvenile Mass On Reproduction And Calf Survival In A Low-Density Moose Population, Sara R. Henslee Dec 2024

Effects Of Juvenile Mass On Reproduction And Calf Survival In A Low-Density Moose Population, Sara R. Henslee

Biological Sciences

Moose (Alces alces) are a valuable big game species in Alaska and serve as a critical food source for residents. Near Nome, Alaska, the local moose population has remained at low densities for decades, and there is strong public interest in investigating the cause behind the population's failure to increase in abundance. Compared to other moose populations in Alaska, the population of moose near Nome does not appear to be nutritionally limited or close to carrying capacity. I sought to explore how juvenile mass, a widely used metric to assess moose nutritional status in Alaska, influences reproductive output and subsequent …

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A Range Extension For Carex Sartwellii In Interior Alaska, Mark A. Winterstein Dec 2024

A Range Extension For Carex Sartwellii In Interior Alaska, Mark A. Winterstein

Biological Sciences

Mean annual temperatures and growing season length have been increasing in northern latitudes. This has impacted permafrost thaw and the water balance of northern regions, resulting in a pattern of drying lakes in the Yukon Flats, Alaska. As lakes dry, they expose lake sediments to colonization by terrestrial vegetation. Recent interest in the terrestrial response to climate change and its effects on ecosystem services led to the formation of the Yukon River Basin project. As a part of this project, we studied plant succession and diversity in the drying lake basins. In the course of our field work we encountered …

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Unveiling Soil Microbial Communities And Resistomes In Northern Alaska National Wildlife Refuges, Bevyn Amber Cover Dec 2024

Unveiling Soil Microbial Communities And Resistomes In Northern Alaska National Wildlife Refuges, Bevyn Amber Cover

Biological Sciences

Microbial communities residing in pristine high-latitude soils play a critical role in ecosystem function, but also harbor potential threats such as acting as reservoirs of antimicrobial resistance (AMR) genes. Current knowledge about these microbial communities and the resistance genes they carry presents limits to the ability to predict how these ecosystems will respond to climate change. This knowledge gap is particularly concerning in light of the potential public health threat posed by antimicrobial resistance harbored within these communities as antibiotic-resistant human infections continue to increase. This study investigated the microbial communities and details the antimicrobial resistance gene reservoirs in previously …

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Mammalian Trait Evolution: Macroevolutionary And Comparative Genomic Analyses Of Diet And Ursid-Specific Adaptations, Matthew David Pollard Dec 2024

Mammalian Trait Evolution: Macroevolutionary And Comparative Genomic Analyses Of Diet And Ursid-Specific Adaptations, Matthew David Pollard

Electronic Theses and Dissertations Archive

Complex traits such as diet have shaped the evolutionary success of species, driving the diversity of form and function that we observe across the tree of life. My research investigates the genomic and macroevolutionary forces behind diet and other complex traits, revealing how they mediate evolutionary change across Mammalia. I utilized two complementary approaches for understanding the evolution of diet in mammals. First, I created two continuous dietary variables—degree of carnivory and degree of dietary specialization—to quantify the impact of diet on mammalian speciation. I found that degree of carnivory, rather than dietary specialization, significantly influenced speciation, but did not …

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Investigation And Computational Analysis Of The Iqd Gene Family In Common Bean (Phaseolus Vulgaris L.): Expression Profiling Under Salt Stress, Tarik Kirlioğlu, Aybüke Okay, Emi̇ne Sümer Aras, İlker Büyük Dec 2024

Investigation And Computational Analysis Of The Iqd Gene Family In Common Bean (Phaseolus Vulgaris L.): Expression Profiling Under Salt Stress, Tarik Kirlioğlu, Aybüke Okay, Emi̇ne Sümer Aras, İlker Büyük

Turkish Journal of Botany

Common bean is one of the most nutritionally important legumes because of its high-quality protein content. While its genome has been widely studied however, the IQD gene family has not been extensively investigated in common bean to date. The IQD proteins (IQ-67 domain), a type of calmodulin-binding protein, are involved in plant growth and development, as well as the plant's response to environmental stressors. In this study, thirty-six PvIQD genes were discovered and their proteins were found to be classified into four groups according to the phylogenetic tree. The proteins which are encoded by PvIQD genes with similar exon-intron pattern …

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Artificial Intelligence-Based Methodologies For Early Diagnostic Precision And Personalized Therapeutic Strategies In Neuro-Ophthalmic And Neurodegenerative Pathologies, Rahul Kumar, Ethan Waisberg, Joshua Ong, Phani Paladugu, Dylan Amiri, Jeremy Saintyl, Jahnavi Yelamanchi, Robert Nahouraii, Ram Jagadeesan, Alireza Tavakkoli Dec 2024

Artificial Intelligence-Based Methodologies For Early Diagnostic Precision And Personalized Therapeutic Strategies In Neuro-Ophthalmic And Neurodegenerative Pathologies, Rahul Kumar, Ethan Waisberg, Joshua Ong, Phani Paladugu, Dylan Amiri, Jeremy Saintyl, Jahnavi Yelamanchi, Robert Nahouraii, Ram Jagadeesan, Alireza Tavakkoli

SKMC Student Presentations and Publications

Advancements in neuroimaging, particularly diffusion magnetic resonance imaging (MRI) techniques and molecular imaging with positron emission tomography (PET), have significantly enhanced the early detection of biomarkers in neurodegenerative and neuro-ophthalmic disorders. These include Alzheimer's disease, Parkinson's disease, multiple sclerosis, neuromyelitis optica, and myelin oligodendrocyte glycoprotein antibody disease. This review highlights the transformative role of advanced diffusion MRI techniques-Neurite Orientation Dispersion and Density Imaging and Diffusion Kurtosis Imaging-in identifying subtle microstructural changes in the brain and visual pathways that precede clinical symptoms. When integrated with artificial intelligence (AI) algorithms, these techniques achieve unprecedented diagnostic precision, facilitating early detection of neurodegeneration and …

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Small- And Medium-Sized Enterprises Strategies For Sustainability And Profitability Beyond 5 Years, Bawi Ming Dec 2024

Small- And Medium-Sized Enterprises Strategies For Sustainability And Profitability Beyond 5 Years, Bawi Ming

Walden Dissertations and Doctoral Studies

Up to 80% of small- and medium-sized enterprises (SMEs) fail within the first 5 years due to factors like financial mismanagement, market challenges, and insufficient long-term planning. To prevent these failures, organizational leaders must adopt effective sustainability strategies, as SME closures lead to job losses, economic instability, and lost innovation opportunities. Grounded in the resource-based view and general systems theories, the purpose of this qualitative pragmatic inquiry project was to explore successful strategies that SME leaders in Maryland used to sustain their businesses beyond their initial 5 years. Data were collected from six SME leaders using semistructured interviews and reviews …

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Does Emotion Regulation Capacity Moderate Social Anxiety Risk Given Experiences Of Racial Microaggressions In Black/African American Undergraduate Students?, Alisha M. Sylvester Dec 2024

Does Emotion Regulation Capacity Moderate Social Anxiety Risk Given Experiences Of Racial Microaggressions In Black/African American Undergraduate Students?, Alisha M. Sylvester

Honors College Theses

Racial microaggressions are intentional or unintentional slights toward members of a marginalized community that may come in the form of verbal, behavioral, or environmental insults. Black/African Americans experience racial microaggressions frequently, and these experiences threaten mental health. Specifically, experiencing more racial microaggressions is linked with a risk for social anxiety. However, not all individuals within the community go on to experience social anxiety. Therefore, the present study sought to identify which individuals are more vulnerable to social anxiety given experiences of racism. Poorer emotion regulation (i.e., the ability to manage emotions) is a known risk factor for anxiety. Thus, I …

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The Activity And Origin Of The Chitinases In The Gut Of The Mediterranean House Gecko, Alec John Dec 2024

The Activity And Origin Of The Chitinases In The Gut Of The Mediterranean House Gecko, Alec John

Masters Theses (Archived)

Chitin is a major component of the exoskeleton of arthropods as well as the cell wall of fungi. This amino polysaccharide polymer provides structure and protection to these organisms and represents a significant barrier to digestion of arthropod prey and fighting fungal infections. Chitinases are enzymes that break down chitin. Smaller insectivores, based upon the higher surface-to-volume ratio of their even smaller prey, ingest a large amount of chitin per unit prey item. Therefore, they represent high-likelihood opportunities to bio prospect for novel chitinases that may be effective against pathogenic fungi. Fungal infections are notoriously difficult to treat, and they …

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Addressing Non-Stationary Fishery Dynamics And Demographic Complexity In Integrated Stock Assessment Models, Matthew L. Cheng Dec 2024

Addressing Non-Stationary Fishery Dynamics And Demographic Complexity In Integrated Stock Assessment Models, Matthew L. Cheng

Fisheries

Integrated stock assessment models are complex non-linear statistical models that fit a variety of fishery-dependent and independent data sources to estimate the status and trends of fish populations, providing recommendations for sustainable harvest levels. Given their complexity, simplifying assumptions are necessary in stock assessment models to balance model parsimony versus complexity, while also considering data limitations. In this dissertation, I investigated considerations for addressing non-stationary fishery dynamics and evaluated the consequences of oversimplified assumptions of fishery dynamics and sex-specific demography in stock assessment models. Using Alaska sablefish (Anoplopoma fimbria) as a case-study, I developed a generalized framework to standardize fishery-dependent …

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Combining Alaska Forage Fish Data From Research Surveys And Predator Diets To Assess Forage Fish Response To Climatic Regime Shifts, Lindsay Turner Dec 2024

Combining Alaska Forage Fish Data From Research Surveys And Predator Diets To Assess Forage Fish Response To Climatic Regime Shifts, Lindsay Turner

Fisheries

Forage fish play a crucial role in the marine ecosystems of Alaska through the transfer of energy from lower trophic levels to marine predators. Understanding and quantifying Alaskan forage fish responses to rapid climatic shifts is needed to inform adaptive management strategies under a warmer and more variable future in Alaska. However, data on the occurrence and abundance of forage fish in Alaska are limited due to the diversity of life history strategies and patchy distribution that make their capture in fisheries-independent surveys difficult. In this thesis, I address current gaps in the data available on forage fish through the …

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Cultivation Protocols For The Red Seaweeds, Devaleraea Mollis And Palmaria Hecatensis From Alaska, Muriel Dittrich Dec 2024

Cultivation Protocols For The Red Seaweeds, Devaleraea Mollis And Palmaria Hecatensis From Alaska, Muriel Dittrich

Marine Biology

Species diversification is crucial for the long-term viability, competitiveness, and sustainability of the seaweed farming industry in the United States. This study investigated the effects of temperature (4, 8 and 12 °C), photoperiod (8L:16D, 12L:12D and 16L:8D), and irradiance (20, 40, 100 ± 10 μmol photons m-2 s-1) on the specific growth rate (SGR) of Devaleraea mollis and Palmaria hecatensis from Alaska. Outputs were used to adjust indoor cultivation protocols for D. mollis and develop the first protocols for Palmaria hecatensis. This study also explored the use of two relatively low-cost commercial nutrient products (F/2 and Jack's Special 25-5-15) as …

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Spatial And Temporal Variability Of Carbohydrate Compositions In Cultivated Alaria Marginata, Nereocystis Luekteana, And Saccharina Latissima, Cameron Jardell Dec 2024

Spatial And Temporal Variability Of Carbohydrate Compositions In Cultivated Alaria Marginata, Nereocystis Luekteana, And Saccharina Latissima, Cameron Jardell

Marine Biology

Carbohydrates derived from Laminariales (kelp), including polysaccharides and sugar alcohols, present significant market opportunities for nascent mariculture industries. These carbohydrates can enhance crop biomass value through extractive processing, with applications in medicine, manufacturing, health supplements, and bio-plastics. The relative abundance and composition of carbohydrates in kelp can vary depending on species, life history, tissue type, season, and environmental conditions. In Alaska, mariculture of kelp focuses on three species: Alaria marginata, Nereocystis luetkeana, and Saccharina latissima. This study assessed the relative abundance of carbohydrates (glucan, mannitol, alginate, and fucoidan) in these species, as well as the sulfate content of fucoidan and …

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Program Review Report 12-17-24, Angela Brock Dec 2024

Program Review Report 12-17-24, Angela Brock

Program Review Committee

No abstract provided.

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Icc Agenda 12-17-24, Angela Brock Dec 2024

Icc Agenda 12-17-24, Angela Brock

Individual Course Committee (ICC)

No abstract provided.

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Completed Aa/As Degrees, Angela Brock Dec 2024

Completed Aa/As Degrees, Angela Brock

General Education Committee

No abstract provided.

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Influence Of Loading Methods On Compression Modulus Of Red Sandstone Soil Solidified With Biological Enzyme And Cement, He Liang, Zhang Haixiang, Guan H Ongxin, Li Huili, Yang Hairong, Liu Hongfu Dec 2024

Influence Of Loading Methods On Compression Modulus Of Red Sandstone Soil Solidified With Biological Enzyme And Cement, He Liang, Zhang Haixiang, Guan H Ongxin, Li Huili, Yang Hairong, Liu Hongfu

Journal of China & Foreign Highway

There are various methods to test the modulus of cement-stabilized mixtures.The stiffness performance of cement-stabilized materials will be affected after adding biological enzymes.In order to systematically analyze the influence of loading conditions on the compression modulus of the red sandstone soil solidified with biological enzyme and cement，compressive modulus tests were conducted on the red sandstone soil solidified with biological enzyme and cement by using three static modulus test methods including monotonic loading method of middle section，stepwise loading and unloading method of top surface，and stepwise loading and unloading method of middle section，as well as dynamic modulus method of top surface and …

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