Digital Commons Network^™

Aquaporin Expression And Cholesterol Content In Eel Swimbladder Tissue, Victoria Drechsel, Gabriel Schneebauer, Birgit Fiechtner, Christopher P. Cutler, Bernd Pelster

Biology: Faculty Publications

Leakiness of the swimbladder wall of teleost fishes must be prevented to avoid diffusional loss of gases out of the swimbladder. Guanine incrustation as well as high concentrations of cholesterol in swimbladder membranes in midwater and deep-sea fish has been connected to a reduced gas permeability of the swimbladder wall. On the contrary, the swimbladder is filled by diffusion of gases, mainly oxygen and CO2, from the blood and the gas gland cells into the swimbladder lumen. In swimbladder tissue of the zebrafish and the Japanese eel, aquaporin mRNA has been detected, and the aquaporin protein has been considered important …

Spatiotemporal Variation Of An Eastern Tropical Pacific Pelagic Community Assessed With Free-Drifting Bruvs, Tyler Stephen Plum

All HCAS Student Capstones, Theses, and Dissertations

Information about pelagic community diversity and ecology generally lags far behind that of coastal communities, and largely derives from fisheries data that do not reflect small and non-target species. We describe spatiotemporal vertebrate species diversity and variability over a 3,486 km² area of highly productive pelagic marine ecosystem in Pacific Panama using drifting baited remote underwater video stations (BRUVS), a non-invasive fishery-independent sampling technique. We observed 26 taxa from 17 families, including 1 mammal, 3 reptile, 5 elasmobranch, and 17 teleost species. Community assemblages differed on and off the continental shelf and between wet (April – December) and dry …

Element Contamination In Port Everglades – Preparing For Ecological Impacts, Laura White

All HCAS Student Capstones, Theses, and Dissertations

Port dredging is of economic importance worldwide but its impacts to the marine environment through the remobilization of elemental contaminants are not well understood. A massive deepening and widening of Port Everglades, Florida, will begin in 2023. Contaminated sediment disturbed during the dredging process could be released and prove to be harmful to three coral reef tracks located beginning 1.5 miles away from the port. This study focused on identifying and quantifying 14 different trace elements: arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se), tin (Sn), …

Spring Regrowth And Steer Performance On Tifton 85 And Coastal Bermudagrass Pastures Following Sod-Seeding With Ryegrass, G. M. Hill, R. N. Gates

IGC Proceedings (1977-2023)

Effects of autumn sod-seeded ryegrass (Lolium multiflorum; cv. Passerel; 37.7 kg/ha) in bermudagrass pastures (Cynodon spp.; cv. Coastal and cv. Tifton 85) on grazing steer performance were determined. Ryegrass was sod-seeded in three of six .81 ha pastures of each bermudagrass. Forage height was adjusted to10 cm during spring. Stocking rates were unaffected by ryegrass in Tifton 85 pastures, but they were higher (P < .05) for Tifton 85 than Coastal. Ryegrass increased tester steer average daily gains by 34% (.86 vs .64 kg/day; P < .01), and gain/ha by 26% (387 vs 306 kg/ha; P < .05). Higher stocking rates resulted in 22% more grazing days (515 vs 421 days/ha; P < .01), and 30% higher gain/ha (391 vs 301 kg/ha; P < .05) for Tifton 85 than Coastal pastures. Ryegrass did not affect stocking rates or steer performance on Tifton 85, but it depressed both on Coastal pastures.

Intensive Grazing Systems For Beef Cattle Production, F. P. Fontenot, V. G. Allen, M. A. Cochran, N. B. Frank

IGC Proceedings (1977-2023)

The objective of this study was to compare grazing systems that used rotational and continuous stocking for beef cows-calves and stocker cattle grazing fescue (Festuca arundinacea) and clover (Trifolium repens). For each system seven cows/calves and seven stocker steers were used within each of two replicates. The cows and stockers grazed stockpiled forage and were fed hay in winter, and grazed growing forage during spring and summer. Cows in the rotational system gained at a faster rate (P< . 05) from October to April than those in the continuous system. Daily gains of calves were higher (P< . 05) for the continuous system. Rate of gain during the last 28 days was higher (P< . 05) for the stockers in the rotational system. Average hay yields were not different for the two stocking systems, but more (P< . 05) hay was fed to the cattle in the continuous system. The system that used continuous stocking was more easily managed and required less labor and facilities.

Age Of Exploitation: Teen Sex Comedy Films Of The 1980s, Thyra Chaney

The Downtown Review: An Interdisciplinary Journal Written and Peer-Reviewed by Mandel Honors College Students at Cleveland State University

The teen sex comedy film genre is representative of dominant cultural factors which influenced the film industry in the 1980s. Films in this genre have been traditionally described as mindless, dumb, and exploitative. This article seeks to understand the distinction between teen sex comedy and traditional teen films, as well as the social and cultural influences which lead to the development and popularity of the teen sex comedy genre. Teen sex comedies are a document of mainstream society and popular culture in the 1980s.

Kalea, Brian Nicholson

Diamond Line Undergraduate Literary Magazine

Brian Nicholson is currently a Sophomore here at the University of Arkansas. He has a deep love for writing, fantasy, and storytelling in all its colors, which has largely been fed by my huge passion for Dungeons and Dragons. He is from Houston, Texas, and is a Political Science and English Major with a minor in Pre-Law, but I’m likely going to drop the Poli Sci and Pre Law and add on Literature and Creative Writing next semester!

Garage Door, Jordan Looper

Diamond Line Undergraduate Literary Magazine

Jordan Looper is a junior Animal Science and Spanish major at the University of Arkansas. Having lived in Arkansas her entire life, she uses the nature around her as inspiration for her writings, especially in poetry and fiction. When not writing, Jordan can be found baking cupcakes or attempting a new fudge recipe (that tends to not go so well).

Diamond Line - Fall 2021, Diamond Line Editors

Diamond Line Undergraduate Literary Magazine

No abstract provided.

Design And Performance Of A 3d-Knitting Mechanism For Fiber Reinforced Metal Alloys, Mahmood Al – Asad, Mahmood Al – Asad, Makky Al – Muhanad

Hadhramout University Journal of Natural & Applied Sciences

In this paper, a three-dimensional knitting mechanism was designed for fiber reinforcement, And the creation of an appropriate movement performance that allows the formation and knitting of geometric shapes that are somewhat identical to the shape of the piece to be reinforced by controlling the path of the spherical bond fibers. Each Each geometry is characterized by a series of three-dimensional matrix, where the geometric shape is dividing into parallel vertical slices , and each slice has its own matrix In accordance with the geometric shape.This 3D woven is used for reinforcement by placing it in a mold to inject …

Fodder Production Comparison Of Cenchrus Ciliaris Varieties, Panicum Antidotale And Local Medicago Sativa, Ahmed Salem Bataher

Hadhramout University Journal of Natural & Applied Sciences

The experiment has been conducted at Swairy Research Farm which included; Cenchrus varieties (Biloela, Gyandah, USA, Local Libid ),Panicum antidotale ( Blue panic ) and Medicago sativa ( Local Berseem ). The analysis of the experiment for the first year revealed that the forage species showed no significant differences between them for green fodder production except Berseem at 5%. At the second year they showed significant differences between Berseem and each one of Blue panic, Gyandah, Biloela and USA and between Libid and each one of Gyandah, Biloela and USA at 5%. Combined analysis for the two years are revealed …

Rehabilitation Of Rangeland And The Possibility Of Productivity Improvement In Wadi Al-Khun (Hadhramout), Ahmed Salem Bataher

Hadhramout University Journal of Natural & Applied Sciences

One hectare of the area in Wadi Al-khun has been fenced and plant inventory in the fenced area (Enclosure) was conducted. The enumerations in the fenced area are showed increase in numbers of perennial species such as Merremia hadramautica, Tephrosia nubica and Acacia tortilis while annual or seasonal species as Cenchrus ciliaris, Stipagrostes hirtigluma, Tribulus sp, Dichanthium insculptum .etc, were decreased or disappeared after a few months of the rainy season. Natural regeneration of perennial range species have been increased in their density in particular Merremia hadramautica, Tephrosia nubica. The dry matter of fodder production was 408 kg /ha and …

Assessment Of Heavy Metal Pollution In The Seawater Of Hadhramout Coastal Area, Yemen, Nabil Abdo Al-Shwaf, Mohammed Abdulla Al-Wosabi, Hisham Mohammed Nagi, Nada Sheikh Mol-Aldwila

Hadhramout University Journal of Natural & Applied Sciences

Hadhramout is considered as the industrial and commercial center for fishing in Yemen. Accordingly, Yemen food security depends highly on maritime products of Hadhramout. Consequently, any severe contamination caused by industrial activities would have direct or indirect negative impact on the sea life and marine environment. Seawater samples were collected from Hadhramout Governorate coastal area Yemen. Five sampling locations were selected to conduct the present study. The samples were taken on a seasonal basis from Augusts of 2013 until May 2014. Twenty seawater samples were collected from the five areas (Ras sharma, Burum, AL-Mukalla, AL-Sheher and Arryidah) at Hadhramout coastal …

Jati Kutta: The Street Dog, The Servant, And Me, Lisa Warden Phd

Between the Species

Caste, class, race, and species collide in this narrative nonfiction piece about an injured street dog, his foreign rescuer, and her Dalit housekeeper in Ahmedabad, India.

Minutes, College Of Liberal Arts Student Life Committee Meeting, Wednesday, December 8, 2021, Student Life Committee

Student Life Committee Minutes

No abstract provided.

Interview With Theresa Hatathlie-Delmar, Theresa Hatathlie-Delmar

Auntie Sewing Squad Interviews

Theresa Hatathlie-Delmar is a member of the Navajo nation, who belongs to the Deer Springs and Salt Clans. She is a co-founder of the grassroots organization Yee Ha’ólníi Doo DBA and a collaborator with the Auntie Sewing Squad. Learning to sew and weave from her parents, Hatathlie-Delmar organized to provide masks, food, water and medical supplies to Navajo and Hopi reservations during COVID-19 pandemic.

Dementia Risk Reduction: Why Haven't The Pharmacological Risk Reduction Trials Worked? An In-Depth Exploration Of Seven Established Risk Factors, Ruth Peters, John Breitner, Sarah James, Gregory A. Jicha, Pierre-Francois Meyer, Marcus Richards, A. David Smith, Hussein N. Yassine, Erin L. Abner, Atticus H. Hainsworth, Patrick G. Kehoe, Nigel Beckett, Christopher Weber, Craig Anderson, Kaarin J. Anstey, Hiroko H. Dodge

Neurology Faculty Publications

Identifying the leading health and lifestyle factors for the risk of incident dementia and Alzheimer's disease has yet to translate to risk reduction. To understand why, we examined the discrepancies between observational and clinical trial evidence for seven modifiable risk factors: type 2 diabetes, dyslipidemia, hypertension, estrogens, inflammation, omega-3 fatty acids, and hyperhomocysteinemia. Sample heterogeneity and paucity of intervention details (dose, timing, formulation) were common themes. Epidemiological evidence is more mature for some interventions (eg, non-steroidal anti-inflammatory drugs [NSAIDs]) than others. Trial data are promising for anti-hypertensives and B vitamin supplementation. Taken together, these risk factors highlight a future need …

The Folklore And Street Art Of Center Street, Alissa Christensen, Ashley Rookstool

Final Projects

This project looks at the folk art located on Center Street in Provo, Utah. Includes photographs of local graffiti and community exhibits

When I Grow Up: An Analysis Of Emerging Desire Of Belonging And Career Paths, Clara Welge

Final Projects

About the careers that people envisioned they would pursue as children and the careers that are currently pursuing as adults. This paper examines how folk groups influence individual career paths.

Identifying Sinorhizobium Meliloti Genes That Determine Fitness Outcomes, Alexander B. Benedict

Theses and Dissertations

The remarkable metabolic capacity of the soil-dwelling bacterium Sinorhizobium meliloti is encoded on its three circular replicons: the chromosome and two large megaplasmids, pSymA and pSymB. Despite making up 45% of the genome, the pSymA and pSymB megaplasmids can be cured from S. meliloti. This unique attribute provides an opportunity to study the essentiality of chromosomal genes in the presence or absence of nearly half the genome. By interrogating chromosomal genes via massively parallel transposon insertion sequencing (Tn-seq) in the presence and absence of pSymA and pSymB, we identified 307 genes as being essential for viability regardless of the genomic …

The Lumberjack, December 08, 2021

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Embarking On A Professional Development Journey: Building The Future You, Jose Arnold Tariga

General Webinars

This webinar will help nurses and other healthcare professionals explore practical strategies to venture on a professional development journey, while at the same time, identifying and overcoming possible roadblocks as they build their future selves and careers.

Effects Of Inclusive Social Skills Training On Preschoolers, Lauren E. Weiss

Special Education ETDs

Social interventions for children with disabilities are generally conducted in small groups and outside of the classroom; therefore, little is known about inclusive and classwide social interventions in early childhood educational settings. This study evaluated the effects of inclusive social skills training (ISST), a program delivered remotely to inclusive preschool classrooms via direct instruction, video modeling, rehearsal, and feedback, to teach social skills. Educators rated preschoolers' social skills in a nonequivalent pretest-posttest design and evaluated the social validity of ISST. I examined the differences in scores. A significant interaction effect was detected in the program group between abilities. Overall, educators …

Saprotrophy Among Endophytic Fungi, Emily Marissa Weatherhead

Theses and Dissertations

Endophytic fungi have been found in every terrestrial plant investigated thus far. They can receive nutritional benefits from their host tissues. Two major modes of nutrition for endophytic fungi include biotrophy and saprotrophy. In chapter 1, I set out to determine whether endophytic fungi isolated from Quercus gambelii in Utah, USA were capable of saprotrophy and, if some were, how much variation in saprotrophic ability exists among them. Because saprotrophy requires moisture and, in Utah, moisture is largely unavailable outside winter and early spring, in chapter 2 I set out to determine if any of our isolated endophytic fungi were …

Closely Related Gull Species Show Contrasting Foraging Strategies In An Urban Environment, K. A. Lato, D. J. Madigan, R. R. Veit, L. H. Thorne

Publications and Research

The expansion of urban landscapes has both negative and positive effects on wildlife. Understanding how different species respond to urbanization is key to assessing how urban landscapes influence regional wildlife behavior and ecosystem structure. Gulls are often described as strong urban adapters, but few studies have explored species-specific differences in habitat use. Here, we use GPS tracking in conjunction with stable isotope analysis (SIA) to quantify the habitat use and trophic ecology of great black-backed gulls (Larus marinus) and herring gulls (L. argentatus) in an urbanized area. Non-Metric Multidimensional Scaling (NMDS) of foraging locations revealed significant differences in the habitat …

Limited Range-Filling Among Endemic Forest Herbs Of Eastern North America And Its Implications For Conservation With Climate Change, Stephanie K. Erlandson, Jesse Bellemare, David A. Moeller

Biological Sciences: Faculty Publications

Biodiversity hotspots host a high diversity of narrowly distributed endemic species, which are increasingly threatened by climate change. In eastern North America, the highest concentration of plant diversity and endemism occurs in the Southern Appalachian Mountains (SAM). It has been hypothesized that this region served as a refugium during Pleistocene glacial cycles and that postglacial migration northward was dispersal limited. We tested this hypothesis using species distribution models for eight forest herb species. We also quantified the extent to which the geography of suitable habitat shifted away from the current range with climate change. We developed species distribution models for …

Injectable Decellularized Nucleus Pulposus Tissue Exhibits Neuroinhibitory Properties, Logan M. Piening, David J. Lillyman, Fei San Lee, Alvaro Moreno Lozano, Jeremy R. Miles, Rebecca A. Wachs

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Background: Chronic low back pain (LBP) is a leading cause of disability, but treatments for LBP are limited. Degeneration of the intervertebral disc due to loss of neuroinhibitory sulfated glycosaminoglycans (sGAGs) allows nerves from dorsal root ganglia to grow into the core of the disc. Treatment with a decellularized tissue hydrogel that contains sGAGs may inhibit nerve growth and prevent discassociated LBP.

Methods: A protocol to decellularize porcine nucleus pulposus (NP) was adapted from previous methods. DNA, sGAG, α-gal antigen, and collagen content were analyzed before and after decellularization. The decellularized tissue was then enzymatically modified to be …

Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Thomas O. Powers

Department of Plant Pathology: Faculty Publications

DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species delimitation …

Ecological And Morphological Differentiation Among Coi Haplotype Groups In The Plant Parasitic Nematode Species Mesocriconema Xenoplax, Julianne N. Matczyszyn, Timothy Harris, Kirsten S. Powers, Sydney E. Everhart, Tom Powers

Department of Plant Pathology: Faculty Publications

DNA barcoding with the mitochondrial COI gene reveals distinct haplotype subgroups within the monophyletic and parthenogenetic nematode species, Mesocriconema xenoplax. Biological attributes of these haplotype groups (HG) have not been explored. An analysis of M. xenoplax from 40 North American sites representing both native plant communities and agroecosystems was conducted to identify possible subgroup associations with ecological, physiological, or geographic factors. A dataset of 132 M. xenoplax specimens was used to generate sequences of a 712 bp region of the cytochrome oxidase subunit I gene. Maximum-likelihood and Bayesian phylogenies recognized seven COI HG (≥99/0.99 posterior probability/bootstrap value). Species …

Global Analysis Of Differential Gene Expression Within The Porcine Conceptus Transcriptome As It Transitions Through Spherical, Ovoid, And Tubular Morphologies During The Initiation Of Elongation, Sophie C. Walsh, Jeremy R. Miles, Brittney N. Keel, Lea A. Rempel, Elane C. Wright‐Johnson, Amanda K. Lindholm‐Perry, William T. Oliver, Angela K. Pannier

Department of Agricultural and Biological Systems Engineering: Faculty Publications

This study aimed to identify transcriptome differences between distinct or transitional stage spherical, ovoid, and tubular porcine blastocysts throughout the initiation of elongation. We performed a global transcriptome analysis of differential gene expression using RNA‐Seq with high temporal resolution between spherical, ovoid, and tubular stage blastocysts at specific sequential stages of development from litters containing conceptus populations of distinct or transitional blastocysts. After RNA‐Seq analysis, significant differentially expressed genes (DEGs) and pathways were identified between distinct morphologies or sequential development stages. Overall, 1898 significant DEGs were identified between distinct spherical and ovoid morphologies, with 311 total DEGs between developmental stages …