Life Sciences Commons^™

Knobcone Pine Response To Shading From Competing Chaparral Shrubs Following Stand-Replacing Wildfire, Sean T. Lindley

Cal Poly Humboldt theses and projects

In northern California, fire regimes are shifting towards more frequent and larger severe wildfire. There is growing concern that this shift poses a threat to biodiversity in the form of cover type change at the landscape scale, resulting in the extirpation of some species in favor of +AD617:AD649well-adapted ones. In northern California, mature serotinous conifers, such as knobcone pine (Pinus attenuata), and resprouting shrub species easily regenerate in severe patches of any size. There is no general consensus regarding the effects of shrub competition on conifer recruitment; conifer response varies with shade tolerance and other abiotic factors. Knobcone …

Self-Determination Theory And Exercise Performance For Individuals With Autism., Martin Calderon

Cal Poly Humboldt theses and projects

Individuals with Autism Spectrum Disorder (ASD) tend to demonstrate low levels of physical activity and exercise when compared to their developing peers. Low physical activity levels are associated with multiple factors, including lack of understanding of how to perform exercise movements and low intrinsic motivation. Token economy reward systems have shown to be practical in behavior analysis for changing behaviors however, there is limited research on the effects of token economy reward systems in an exercise setting. The purpose of this study was to determine the impact of a token economy board combined with self-determination theory (SDT) on the exercise …

Skeletochronology In Long Tubular Bones Of The Javan Water Monitor Lizard, Varanus Salvator Bivittatus In The Juvenile Stage (Lacertilia: Varanidae), Hellen Kurniati, Ni Luh Putu Rischa Phadmacanty, Gono Semiadi

Turkish Journal of Zoology

Age estimation of the juvenile stage of Varanus salvator bivittatus using limb bones, namely the big long tubular bones (femur, tibia, humerus) and the small long tubular bones (fibula, radius, ulna, phalanx), was performed using the skeletochronological method. Samples were from Java Island, Indonesia and provided by the pet exporters. Lines of arrested growth (LAG) were present and the first growth mark was visible on a female with a snout-vent length (SVL) of 18.8 cm, and a male with SVL of 19.3 cm. The process of resorption begins in the juvenile stage, and resorption occurs in all long tubular bones. …

Providing Athletic Training Resources To Deaf And Hard-Of-Hearing Persons, Molly M. Osborn, Courtney M. Meyer, Zachary K. Winkelmann

Clinical Practice in Athletic Training

No abstract provided.

Interactions Between Environmental Factors And The Mesozooplankton Community From The Romanian Black Sea Waters, Elena Bisinicu, George-Emanuel Harcota, Luminita Lazar

Turkish Journal of Zoology

The aim of the study was to trace the influence of several abiotic factors on the distribution of the mesozooplankton community from the Black Sea. Sampling was performed in cold and warm seasons of 2013-2020, from stations located on the three sectors of the Romanian Black Sea coast (northern-N, central-C, and southern-S). After determining the species composition, abundance, and biomass, the results were subjected to statistical analysis. A total of 25 taxa were identified, Copepoda representing the bulk of the community. The analysis of the main components explains, through the first two identified factors-temperature and salinity, the variation of environmental …

Low Ferritin Count In Female Collegiate Soccer Player Presents As Concussion, E N. Nelson, T D. Pitcock, M K. Knoblauch, L J. Harrison

Clinical Practice in Athletic Training

Background: Women’s soccer leads the National Collegiate Athletic Association for having the highest number of concussions in female sports. Common symptoms of concussion can include light headedness, headaches, and dizziness, but these symptoms are not exclusive to concussions. Female athletes may experience nutritional deficits that can lead to a wide range of symptoms mimicking those commonly experienced with a concussion such as headaches, dizziness, and fatigue. The patient in this case is a 21- year-old female soccer athlete who presented with sensitivity to light, light headedness, nausea, and fatigue after experiencing repeated ‘headers’ as well as a collision during a …

Effect Of Acute And Repeated Noise Exposure On The Behaviour And Lipid Peroxidation In Brain Tissue Of Male And Female Mice, Gabriella Korsós, Kinga Fodor, Annamária Kiss, Anna Blázovics, Sándor György Fekete

Turkish Journal of Veterinary & Animal Sciences

Despite the increasingly obvious sex differences, male animals are still predominantly used to study stress and related disorders. The aim of this study was to evaluate the effects of repeated noise stress in female and male mice. In the experiment, 12 male and 12 and female SPF/VAF 6-week-old Crl:CD1(lcr) mice were used. After 5 days of acclimatization all animals were placed in the open-field for three consecutive days where each mouse spent 10 min daily without any noise treatment in order to get used to the circumstances of the test. On day 9 to record baseline behaviour the animals were …

Chemical, Microbial And Safety Profiling Of A Standardized Withania Somnifera (Ashwagandha) Extract And Withaferin A, A Potent Novel Phytotherapeutic Of The Millennium, Pawan Kumar, Samudra P. Banik, Apurva Goe, Sanjoy Chakraborty, Manashi Bagchi, Debasis Bagchi

Publications and Research

Background:Withania somnifera (L.) Dunal, popularly known as Ashwagandha, is an ethnomedicinal plant with multiple pharmacotherapeutic applications. The diverse medicinal properties of the plant are largely due to the presence of withanolides, a group of C28 ergostane based steroidal lactones, with several sites of unsaturation and oxygenation. Withaferin A, a major with anolide present in Ashwagandha plant accounts for its emerging new roles to treat cancer, arthritis, inflammatory responses, immunomodulatory properties, and neuronal disorders. The root and leaf extracts are specifically important constituent materials for the development of phytotherapeutics, mostly intended for oral consumption. Several studies have been carried out …

Interactive Effects Of Climate Change-Induced Range Shifts And Wind Energy Development On Future Economic Conditions Of The Atlantic Surfclam Fishery, Stephanie Stromp, Andrew M. Scheld, John M. Klinck, Daphne M. Munroe, Eric N. Powell, Roger Mann, Sarah Borsetti, Eileen E. Hofmann

CCPO Publications

Rising water temperatures along the northeastern U.S. continental shelf have resulted in an offshore range shift of the Atlantic surfclam Spisula solidissima to waters still occupied by ocean quahogs Arctica islandica. Fishers presently are prohibited from landing both Atlantic surfclams and ocean quahogs in the same catch, thus limiting fishing to locations where the target species can be sorted on deck. Wind energy development on and around the fishing grounds will further restrict the fishery. A spatially explicit model of the Atlantic surfclam fishery (Spatially Explicit Fishery Economics Simulator) has the ability to simulate the consequences of fishery displacement …

The Southern Ocean Ecosystem Affects The Entire World, Eugene J. Murphy, Nadine M. Johnston, Eileen E. Hofmann, Richard A. Phillips, Jennifer E. Jackson, Andrew J. Constable

CCPO Publications

The Southern Ocean, which flows around the Antarctic continent, is home to vast numbers of unique and remarkable animals, including penguins, albatrosses, petrels, seals, and whales. The ocean bursts into life every spring, fueling a summer feeding and breeding frenzy. During the dark winter months, there is little food and life is very harsh. Human activities such as fishing and pollution are affecting this ecosystem, as is climate change. These ecosystem changes matter beyond the Southern Ocean! Ocean currents carry nutrients and organisms into and out of the Southern Ocean. Many marine mammals and seabirds swim or fly in and …

Potential Repercussions Of Offshore Wind Energy Development In The Northeast United States For The Atlantic Surfclam Survey And Population Assessment, Sarah Borsetti, Daphne M. Munroe, Andrew M. Scheld, Eric N. Powell, John M. Klinck, Eileen E. Hofmann

CCPO Publications

The Atlantic surfclam Spisula solidissima fishery, which spans the U.S. Northeast continental shelf, is among the most exposed to offshore wind energy development impacts because of the overlap of fishing grounds with wind energy lease areas, the hydraulic dredges used by the fishing vessels, and the location of vessel home ports relative to the fishing grounds. The Atlantic surfclam federal assessment survey is conducted using a commercial fishing vessel in locations that overlap with the offshore wind energy development. Once wind energy turbines, cables, and scour protection are installed, survey operations within wind energy lease areas may be curtailed or …

Examining The Connectivity Of Antarctic Krill On The West Antarctic Peninsula: Implications For Pygoscelis Penguin Biogeography And Population Dynamics, Katherine L. Gallagher, Michael S. Dinniman, Heather J. Lynch

CCPO Publications

Antarctic krill (Euphausia superba) are considered a keystone species for higher trophic level predators along the West Antarctic Peninsula (WAP) during the austral summer. The connectivity of these populations may play a critical role in predator biogeography, especially for central-place foragers such as the Pygoscelis penguins that breed along the WAP during the austral summer. Here, we used a physical ocean model to examine adult krill connectivity in this region using simulated krill with realistic diel vertical migration behaviors across four austral summers. Specifically, we examined krill connectivity around the Adélie gap, a 400 km long region along …

Marineepi: A Gui-Based Matlab Toolbox To Simulate Marine Pathogen Transmission, Gorka Bidegain, Tal Ben-Horin, Eric N. Powell, John M. Klinck, Eileen E. Hofmann

CCPO Publications

The Graphical User Interface (GUI) MarineEpi is presented as a Matlab toolbox for easily (i) constructing disease transmission models for different marine host-pathogen systems, (ii) running simulations by specifying initial conditions and model parameters, and (iii) interpreting the resulting time series of the host and pathogen population dynamics. MarineEpi users can generate models for systems in which pathogen transmission occurs through contact with infected individuals (SI), contact with dead infected individuals (SID), contact with environmental pathogens released by infected individuals (SIP), and contact with environmental pathogens released by dead infected individuals (SIPD). MarineEpi is a freely available GUI that provides …

The Yucca Auxin Biosynthetic Genes And Drought: How Does Gene Expression Change In Water Stressed Leaves?, Samantha Pelletier

Botany Honors Papers

As drought becomes more pronounced due to climate change, it is important to characterize the responses of plants to water stress. One area of interest includes how auxin, the hormone most associated with growth and development, is affected by drought. In particular, the final size of an expanding leaf is often reduced in response to drought and auxin is known to play a key role in leaf expansion. The YUCCA proteins catalyze the conversion of indole-3-pyruvic acid to indole-3-acetic acid (IAA), the dominant form of auxin in most plants, and most of this IAA is produced in rapidly expanding leaves. …

The Effects Of Trailside/Non-Trailside Sample Collection And Tree Communities On Biodiversity Of Mushroom-Forming Fungi In Public Green Spaces Of New London, Connecticut, Quincy Dowling

Botany Honors Papers

The Kingdom Fungi holds a wealth of biodiversity and potential for better supporting both natural and human communities (Lange, 2014). Mushroom-forming fungi have potential value as sustainable and accessible sources of food in public green spaces (Rombach & Dean, 2023). The purpose of this investigation was to examine the effect of trailside disturbance and tree communities on the diversity and community composition of mushroom-forming fungi in New London, Connecticut. Six public green spaces were identified and surveyed for species richness of mushroom-forming fungi. At each site, two foraging areas of equal area were defined: one along either side of a …

Applications Of Urban Land Evaluation And Site Assessment (Ulesa) In Chesterfield County, Virginia, Emily Hastings

Theses and Dissertations

Urban and suburban agriculture is increasing in popularity across the United States. However, many of these farms are short-lived due to a combination of human factors (e.g., managerial, economic, cultural) and environmental or spatial factors (e.g., zoning, soil quality, distance to markets). Geospatial analysis, in the form of suitability modeling, could aid in locating suitable sites for these activities. Land Evaluation and Site Assessment (LESA) is a suitability modeling technique that generates a score for agricultural land use in traditionally rural spaces. This research explores adapting this method to encompass the complexities of placing diverse, in-ground agriculture in urban and …

A Comparison Of Virtual Vs. Traditional Cycling Exercise On Perceived Duration And Exercise Enjoyment, Kyle W. Reason

Dissertations

We compared perceived duration, ratings of enjoyment and RPE between virtual vs. standard cycling. Participants completed a VO2 peak test and four counterbalanced trials (two 20-min, two 40-min) one at each duration on the interactive Expresso bike (EXP) and a workload matched trial on a Velotron (VEL). Acute RPE were assessed every 5-min. Perceived duration (min) and exercise enjoyment were assessed 15-min post. No significant differences were found for perceived duration between trials (SDE 23.9 ± 8.4; SDV 27.1 ± 9.6; LDE 40.0 ± 12.1; LDV 38.9 ± 10.8). For long duration expresso (LDE) RPE-overall were significantly lower at 25, …

Longitudinal Sport Science Implementation In American Collegiate Men’S Basketball, Jason Stone

Graduate Theses, Dissertations, and Problem Reports (ETD)

The expanding opportunities to implement sport science frameworks in elite-level basketball environments coincide with the sport’s increasing global prominence. Concomitant to these opportunities is the continual growth of the sport technology market (e.g., wearables, force plates) and computational power (e.g., data management tools, coding capabilities), which yields solutions and challenges for both athletes and practitioners. Due to the rapid influx of new sport technologies in high performance environments, particularly American Collegiate Men’s Basketball, more formal and ecologically valid research on how to effectively utilize data derived from them, particularly over long periods of time (i.e., multiple seasons) is needed. To …

Swine Research Industry, Alyssa Abendroth '24

Distinguished Student Work

My business research revolved around biosecurity and disease. My inquiry was led by the question How common are diseases in commercial swine units and how can they be prevented from a staff personnel standpoint?. I completed my research by gaining knowledge through experience in my internship, as well as a literature review. I could not find an explicit response to how common diseases are, but I did learn about biosecurity and disease prevention.

Sources Of Volatile Aromatic Congeners In Whiskey, Thomas J. Kelly, Christine O'Connor, Kieran N. Kilcawley

Articles

Whiskey’s complex and diverse flavor stems from a range of reactions that create congeners that are primarily dependent upon the cereal source/mash bill and each stage of the process: malting, mashing, fermentation, distillation, and cask maturation. Therefore, in theory, the congener profile of a whiskey is a summation of its ingredients and the specific parameters of each stage of the manufacturing process. Congener profiles have been used as biomarkers for quality and authentication; however, to date, insufficient information has been published in relation to the extensive profiling of congeners associated with specific whiskey styles/types or the intra-and inter-variability within brands, …

Approaches To Avoid Proteolysis During Protein Expression And Purification, Gary T. Henehan, Barry J. Ryan, Gemma K. Kinsella

Books/Book Chapters/ Proceedings

All cells contain proteases, which hydrolyze the peptide bonds between amino acids of a protein backbone. Typically, proteases are prevented from nonspecific proteolysis by regulation and by their physical separation into different subcellular compartments; however, this segregation is not retained during cell lysis, which is the initial step in any protein isolation procedure. Prevention of proteolysis during protein purification often takes the form of a two-pronged approach: first, inhibition of proteolysis in situ, followed by the early separation of the protease from the protein of interest via chromatographic purification. Protease inhibitors are routinely used to limit the effect of the …

Protein Extraction And Purification By Differential Solubilization, Barry J. Ryan, Gemma K. Kinsella, Gary T. Henehan

Books/Book Chapters/ Proceedings

The preparation of purified soluble proteins for biochemical studies is essential and the solubility of a protein of interest in various media is central to this process. Selectively altering the solubility of a protein is a rapid and economical step in protein purification and is based on exploiting the inherent physicochemical properties of a polypeptide. Precipitation of proteins, released from cells upon lysis, is often used to concentrate a protein of interest before further purification steps (e.g., ion exchange chromatography, size exclusion chromatography etc).

Recombinant proteins may be expressed in host cells as insoluble inclusion bodies due to various influences …

A Review On Potential Biofuel Yields From Cover Crops, Liangcheng Yang, Lucas D. Lamont, Shan Liu, Chunchun Guo, Shelby Stoner

Faculty Publications - Agriculture

Millions of hectares of cover crops are planted in the U.S. and European Union to manage soil erosion, soil fertility, water quality, weeds, and climate change. Although only a small percentage of cover crops are harvested, the growing cover crop planting area provides a new biomass source to the biofuel industry to produce bioenergy. Oilseed crops such as rapeseed, sunflower, and soybean are commodities and have been used to produce biodiesel and sustainable aviation fuel (SAF). Other cover crops such as cereal rye, clover, and alfalfa, have been tested on small or pilot scales to produce cellulosic ethanol, biogas, syngas, …

White Matter Hyperintensity Longitudinal Morphometric Analysis In Association With Alzheimer Disease, Jeremy Fuller Strain, Chia Ling Phuah, Babatunde Adeyemo, Kathleen Cheng, Kyle B. Womack, John Mccarthy, Manu Goyal, Yasheng Chen, Aristeidis Sotiras, Hongyu An, Chengjie Xiong, Andrea Scharf, Catherine Newsom-Stewart, John Carl Morris

Biological Sciences Faculty Research & Creative Works

INTRODUCTION: Vascular damage in Alzheimer's disease (AD) has shown conflicting findings particularly when analyzing longitudinal data. We introduce white matter hyperintensity (WMH) longitudinal morphometric analysis (WLMA) that quantifies WMH expansion as the distance from lesion voxels to a region of interest boundary. METHODS: WMH segmentation maps were derived from 270 longitudinal fluid-attenuated inversion recovery (FLAIR) ADNI images. WLMA was performed on five data driven WMH patterns with distinct spatial distributions. Amyloid accumulation was evaluated with WMH expansion across the five WMH patterns. RESULTS: The preclinical group had significantly greater expansion in the posterior ventricular WM compared to controls. Amyloid significantly …

Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams

OES Faculty Publications

Constraining the role of dust deposition in regulating the concentration of the essential micronutrient iron in surface ocean waters requires knowledge of the flux of seawater-soluble iron in aerosols and the replacement time of dissolved iron (DFe) in the euphotic zone. Here we estimate these quantities using seasonally resolved DFe data from the Bermuda Atlantic Time-series Study region and weekly-scale measurements of iron in aerosols and rain from Bermuda during 2019. In response to seasonal changes in vertical mixing, primary production and dust deposition, surface DFe concentrations vary from ∼0.2 nM in early spring to >1 nM in late summer, …

The Effect Of A 5-Week Concurrent Training Program On Acft Scores, Ruck March Times, And Aerobic Capacity In Army Rotc Cadets, Cody Durbin

Dissertations and Theses @ UNI

Most Army ROTC programs conduct physical training (PT) only 3 days per week and no study has directly compared the effects of conducting PT 5 days per week on ACFT scores, ruck march performance, and aerobic capacity. Past research has indicated greater performance adaptations with a concurrent training program and some research has shown that current ROTC PT programs may not be optimal in physically preparing ROTC cadets. Purpose: To examine the effectiveness of a 5-day per week periodized tactical strength and conditioning program on ACFT scores, and aerobic capacity in Army ROTC cadets. Methods: Eight ROTC cadets from UNI …

An Approach To Developing Benchmark Datasets For Protein Secondary Structure Segmentation From Cryo-Em Density Maps, Thu Nguyen, Yongcheng Mu, Jiangwen Sun, Jing He

Computer Science Faculty Publications

More and more deep learning approaches have been proposed to segment secondary structures from cryo-electron density maps at medium resolution range (5--10Å). Although the deep learning approaches show great potential, only a few small experimental data sets have been used to test the approaches. There is limited understanding about potential factors, in data, that affect the performance of segmentation. We propose an approach to generate data sets with desired specifications in three potential factors - the protein sequence identity, structural contents, and data quality. The approach was implemented and has generated a test set and various training sets to study …

A Single-Cell Atlas Of Bovine Skeletal Muscle Reveals Mechanisms Regulating Intramuscular Adipogenesis And Fibrogenesis, Leshan Wang, Peidong Gao, Chaoyag Li, Qianglin Liu, Zeyang Yao, Yuxia Li, Xujia Zhang, Jiangwen Sun, Constantine Simintiras, Matthew Welborn, Kenneth Mcmillin, Stephanie Oprescu, Shihuan Kuang, Xing Fu

Computer Science Faculty Publications

Background: Intramuscular fat (IMF) and intramuscular connective tissue (IMC) are often seen in human myopathies and are central to beef quality. The mechanisms regulating their accumulation remain poorly understood. Here, we explored the possibility of using beef cattle as a novel model for mechanistic studies of intramuscular adipogenesis and fibrogenesis.

Methods: Skeletal muscle single-cell RNAseq was performed on three cattle breeds, including Wagyu (high IMF), Brahman (abundant IMC but scarce IMF), and Wagyu/Brahman cross. Sophisticated bioinformatics analyses, including clustering analysis, gene set enrichment analyses, gene regulatory network construction, RNA velocity, pseudotime analysis, and cell-cell communication analysis, were performed to elucidate …

Validity And Reliability Of A Computer Vision System To Determine Bar Displacement And Velocity, Christopher Taber, Emma Patterson, Jui Shah, Padraig Francis, Justin C. Wager

Exercise Science Faculty Publications

This study examined the validity and reliability of a video-based smartphone application (VBA) to measure displacement and velocity in the barbell bench press, back squat, and deadlift. Nine resistance-trained subjects (three females; six males; age: 24.2±4.2 years; height 175.8±8.1 cm; body mass 87.2±18.2kg) completed two test-retest sessions for the barbell bench press, back squat, and deadlift one week apart. Eight repetitions were completed for the bench press, back squat, and deadlift with a load of 40kg and completed at fast and slow velocities. Bar displacement and average velocity were measured simultaneously using 3-D motion capture (MC) and a VBA. The …

What Kills The Virtually Immortal Palms Of The Florida Scrub?, Warren G. Abrahamson Ii

Faculty Journal Articles

Premise: Life span varies greatly across plants, with some species being capable of extreme longevity. Yet even long‐lived individuals are susceptible to climatic events, fire, and other challenges. We examined rare mortality events and their causes in two long‐lived palmettos over four decades. Methods: We monitored the survival of the clonal Serenoa repens and non‐clonal, Florida‐endemic Sabal etonia from 1981 to 2022 in four habitats along an elevational gradient within the globally imperiled Florida scrub ecosystem. We considered several challenges to palmetto survival, including extreme fires, shading due to lack of fire, droughts, periods of high precipitation, and possible pathogens. …