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Lock Scheduling Decisions And Strategy Optimization Under Operation Interruption Scenarios, Junhe Li, Qiang Zhang, Junpeng Jiang, Jiangchao Bao

Journal of Marine Science and Technology–Taiwan

Locks are critical nodes in inland waterway transportation systems that concentrate vessel traffic between upstream and downstream reaches, making their operations highly sensitive to hydrological conditions. Therefore, disruptions caused by droughts, floods, or routine maintenance can easily trigger congestion. To address this issue, this study systematically examines the interrelationships among the number of ships awaiting passage, scheduling strategies, the trade-off between lock chamber utilization and ship waiting time, the influence of ship entry sequences on user satisfaction, and the combined effects of these factors on overall lock scheduling performance. Based on these analyses, an integrated decision-making model for two-stage ship …

Corrosion Protection Assessment Of Offshore Wind Turbine Substructures Using Beasy Cp Simulation Analysis, Chuan-Yang Wan, Hung-Hua Sheu, Sheng-Yu Wang, Yao-Ming Wang, Wei-De Chen, Ming-Yuan Lin, Hung-Bin Lee

Journal of Marine Science and Technology–Taiwan

This study investigates the corrosion protection assessment of offshore wind turbine substructures established in the waters off Keelung, Taiwan. First, a cathodic protection system for the monopile foundation is designed and established. The Boundary Element Method (BEM) is applied using the BEASY simulation software to develop a 3D geometric model for cathodic protection. In the steel monopile simulation analysis, the exposed marine environment is set based on the sea conditions of the Keelung small boat marina, including parameters such as salinity, resistance, and polarization curves, to establish an effective cathodic protection system for underwater structures. By simulating these parameters, a …

Face-To-Face Versus Distance Education In Competence-Based Maritime Education And Training, Clara Borén, Marcella Castells-Sanabra, Manel Grifoll

Journal of Marine Science and Technology–Taiwan

The COVID-19 pandemic created significant challenges for higher education, with universities being shut down and face-to-face teaching and assessment shifting to an online format. This presented an opportunity to focus on the continuity of learning through distance education, especially in the maritime context, due to the on-board training requirements, and even though five years have passed, this shift has reshaped the education landscape, proving that remote learning has come to stay.

At the Barcelona School of Nautical Studies, we have developed a weather routing software in the framework of distance education and teaching innovation. We conducted a teaching trial alternatively …

A Bibliometric And Visualization Analysis Of Global Giant Clam Research, Chia-Hsiang Chen, Chih-Hsien Chang

Journal of Marine Science and Technology–Taiwan

In this study, bibliometric analysis and visualization tools were used to investigate the academic network and knowledge structure surrounding global giant clam research. A total of 551 relevant publications from the Web of Science database, published from 1900 to 2024, were analyzed. The findings indicate that research on giant clams has experienced considerable growth since 2012, peaking in publication output in 2021. Sixty-six countries were represented in the study sample, with the United States, Australia, China, Singapore, and Japan being the most represented ones. Notably, the rate of international collaboration was only 29%, highlighting a need for additional integrated cross-border …

Differential Roles Of Moesin And Vasp In Β-Catenin-Associated Networks During Zebrafish Heart Regeneration, Allen Rutman

Undergraduate Theses, Capstones, and Recitals

With cardiovascular disease remaining as the leading cause of mortality worldwide, it is largely due to the limited regenerative capacity of the human heart. However, zebrafish (Danio rerio) can fully regenerate cardiac tissue following injury, providing a valuable model for studying the mechanisms of heart repair. To investigate these mechanisms, we used proteomics methods in the past. Proximity labeling is a technique that identifies proteins based on their physical proximity to a protein of interest. It can be applied in organisms and in living cells (Roux et al., 2012; Cho et al., 2020). We used proximity labeling to characterize protein …

Exploring The Relationship Between Tree Dbh And Lichen Cover On Coast Redwood, Grace M. Personeus, Sierra Gittleman, Alisa A. Zarattini

IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt

We investigated the relationship between Diameter at Breast Height (DBH) and lichen cover on coast redwood (Sequoia sempervirens) to see if larger trees had higher percentages of cover. We measured cover using 10 cover classes on the southeastern and southwestern sides of trees in a secondary growth forest. We found a significant relationship between DBH and cover, yet no significant difference between the two sides measured. We suggest that further research with a larger sample size and more varied age classes will provide further insight into the relationship.

Allosteric And Uncompetitive Inhibition Of Yeast Alcohol Dehydrogenase Identified By Enzyme Kinetics, Dylan Jeremy Harrison, Jenny A. Cappuccio

IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt

Enzyme kinetics is a powerful technique used to quantify the rate at which an enzyme converts a substrate into a product and to identify potential inhibitors. In this study, kinetic analysis was employed to assess the activity of yeast alcohol dehydrogenase (YADH) in the presence and absence of sweeteners commonly found in alcoholic beverages. YADH catalyzes the oxidation of ethanol to acetaldehyde using NAD⁺ as a cofactor; the reduction to NADH can be monitored spectrophotometrically at 340 nm. Based on structural similarities to the ribose moiety of NAD⁺, it was hypothesized that sucrose and sucralose could directly interact with the …

Neuromuscular Responses During Vigorous Intensity Heart Rate-Clamp Cycling Exercise, Clara J. Mitchinson, Pasquale J. Succi, Brian Benitez, Djadmann Gustave, Minyoung Kwak, Erik Snell, Haley C. Bergstrom

Journal for Sports Neuroscience

Introduction: Electromyography (EMG) and mechanomyography (MMG) provide non-invasive assessments of neuromuscular function and fatigue during dynamic exercise. This study examined neuromuscular fatigue and cycling performance through changes in power output (PO), total work (TW), EMG and MMG, amplitude (AMP) and mean power frequency (MPF) during three, heart rate (HR)-Clamp trials in the vigorous range (77-95% HR_max). Methods: Ten men (mean±SD, 25.9±5.0yr, 74.9±15.0kg, HR_max=178±12b×min^-1) performed a cycle ergometer graded exercise test, followed by three separate HR-Clamp trials at 77%HR_max (HR_L, time to exhaustion [T_Lim]=58.5±4.6 min, range=45.3-60.0min), 86%HR_max (HR_{M …}

A Computational Micropatterning Approach To Study Caveolae And Protein Localization In Vascular Biology, Andrew B. Grespin

Electronic Theses and Dissertations

Caveolae are specialized, flask-shaped membrane invaginations highly expressed in endothelium and dysregulated in atherosclerosis. Caveolae play a central role in buffering membrane tension, yet the principles governing their spatial organization remain elusive. Thus, we sought to generate the most comprehensive and systematic analysis of blood vessel caveolar spatial organization. However, cell culturing, the backbone of human-focused biological research, does not standardly do well to model physiologically relevant cell behaviors such as migration or polarity-based tissue formation, particularly for punctate proteins and structures like caveolae. Micropatterns are cell-adhesive shapes that biophysically confine cell(s) to a user defined geometry which stereotype organelle …

The Palm Farm Next-Door: Land Concessions, Livelihoods, And Nutrition In Plantation-Adjacent Communities, Julia Entwistle

Electronic Theses and Dissertations

Large-scale land concessions have reshaped agrarian landscapes globally, yet their implications for community land tenure, livelihoods, and nutrition remain unevenly understood. This dissertation examines how plantation agriculture and foreign investment have transformed land access, labor relations, and food systems in Liberia, a country with one of the highest proportions of land under concession globally. Guided by a political ecology framework, the study employs a mixed-methods design integrating policy analysis, in-depth interviews, and household surveys across two palm oil concession sites. The findings show that ambiguous land policies historically facilitated dispossession, while recent legal reforms have enabled communities to strategically mobilize …

Food System Science Lesson-3 For First Graders. Mitakuye Oyasin: The Invisible Web (We Are All Related, An Ecological Knowledge Lesson), Arlene A. Abao, Madhav P. Nepal

iLEARN Teaching Resources

 In this heart-centered science lesson, students will discover the beautiful Lakota concept of Mitakuye Oyasin, which teaches us that "we are all related." Rather than seeing nature as a collection of separate things, children will learn to see the Invisible Web, the magical connections between the sun, soil, water, plants (flora), and animals (fauna). Through a hands-on "Yarn Web" activity and outdoor exploration, students will move beyond being just observers and start seeing themselves as stewards (caretakers) of their environment. They will learn that when we help a bee or protect a stream, we are helping our own Earth family. …

Beyond The Best Fit: Fitting Sir-Style Models To Data While Prioritizing Biological Meaning, Meredith L. Greer

CODEE Journal

Many students find comfort in mathematics because math classes have been a place where they can find the “right answer” to exercises. Modeling courses typically emphasize more nuance, teaching students to try modeling approaches, compare back with real-world mechanisms and data, and then refine their models, in an ongoing cycle. One topic, however, can cause students to quickly revert into “right answer” mode: fitting a model to data. Phrases such as best fit and minimize the distance suggest there is one optimal solution that can be determined by an algorithm, and these algorithms typically have no relationship to the biology …

The In Vitro Feeding Of Hyalomma Marginatum (Koch, 1844), Nesli̇han Ölmez, Bariş Sari, Zati̇ Vatansever

Turkish Journal of Veterinary & Animal Sciences

Ticks are obligate hematophagous ectoparasites that play a major role in the transmission of pathogens affecting both animals and humans. Investigations into tick biology, pathogen transmission, and the development of effective control strategies have traditionally depended on the extensive use of laboratory animals. Consequently, the development of reliable in vitro feeding systems is a valuable alternative approach with the potential to reduce animal use in tick research. In the present study, a previously described silicone membrane artificial feeding system was modified and applied for the in vitro feeding of Hyalomma marginatum (Koch, 1844). Feeding units were prepared using bovine blood …

Determination Of Hematobiochemical Parameters And Egg Quality Traits Of Turkish Sultan Chickens, Mehmet Naci̇ Oktay, Ruhi̇ Kabakçi, Ali̇ Karapinar, Gökhan Şen, Taha Altuğ, Yasi̇n Şenel

Turkish Journal of Veterinary & Animal Sciences

The present study aimed to investigate the hematological and biochemical blood parameters, along with selected egg quality traits, of Turkish Sultan chickens. A total of 90 blood samples collected from 60-week-old hens and roosters and 129 eggs collected from 50 hens were analyzed. The findings showed that hematological parameters such as red blood cells (RBC), hemoglobin (HGB), packed cell volume (PCV), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and heterophil-to-lymphocyte (H/L) ratio, as well as biochemical markers such as aspartate aminotransferase (AST), lactate dehydrogenase (LDH), and uric acid levels, were significantly higher in roosters. The average egg weight, shape …

1 Billion Birds Lost: Mechanisms Of Window Collisions And Possible Mitigation Strategies At Lawrence University, Shoshana Schmit

Lawrence University Honors Projects

Windows are currently the largest killer of birds on the planet, with an estimated 1 billion birds dying from collisions annually. If birds that hit windows do not die on impact, they may either die elsewhere shortly afterwards, resulting in the number of carcasses at collision sites being a conservative estimate of the actual number of fatalities. During the day, proximity to foraging sites and reflectivity play crucial roles in the danger of windows, and during the night, artificial illumination emitting from windows disorients and inhibits navigational cues. To explore this topic on campus, I documented bird collisions at Lawrence …

Creating Sustainable School And Home Gardens: Managing Rainwater, Lawrence Krissek, Kathy Cabe Trundle

All Current Publications

Rainscaping can help solve drainage problems, reduce erosion, improve water quality, and conserve soil by effectively managing rainwater movement across the landscape. It can also provide environments with increased biodiversity while reducing the need for supplemental watering.  The details of rainscaping your garden are very site-specific, affected by the amount of space and money available, your garden’s physical and weather/climate characteristics, and your garden goals. This resource sheet addresses the use of natural methods to ensure efficient rainwater management.

Defining Replication-Driven Vulnerabilities In High Grade Serous Ovarian Cancers, Natasha Maya Ramakrishnan

Arts & Sciences Graduate Student Theses and Dissertations

High grade serous ovarian carcinoma (HGSOC) is an aggressive, highly lethal subtype of ovarian cancer. These cancers are typically diagnosed in later stages and are associated with poor patient prognosis. Additionally, HGSOC is characterized by numerous markers of genomic instability and defects in DNA repair pathways, vulnerabilities which have been exploited by the advancement of chemotherapy. Despite these clinical advancements, HGSOC remains a significant therapeutic challenge due to emergence of chemoresistance and limited targeted treatment options. Taken together, these factors highlight an ongoing need to study the development of HGSOC and its progression to identify more effective treatment opportunities. We …

The Gut Microbiome, The Gut-Brain Axis, And College Student Well-Being, Idi Mckay

University Honors Theses

This literature review examines how diet, stress, environmental exposure, and food accessibility may influence college students' mental health and academic performance through the gut microbiome and the Gut-Brain Axis (GBA). Current microbiome research often focuses on early childhood development, clinical disease populations, or older adults, while overlooking college-age students who experience significant social, environmental, and biological transitions. College students frequently face food insecurity, irregular eating patterns, chronic stress, inconsistent sleep schedules, and reduced access to nutrient-dense foods, all of which may influence microbial diversity and overall gut health.

This thesis explores how modern campus environments and lifestyle factors may contribute …

Bap1 Loss Links Myc Activation, Stress Response Vulnerability, And Disease Progression In Kidney Cancer, Ilya Strunilin

Arts & Sciences Graduate Student Theses and Dissertations

BAP1, a chromatin modifier, is a frequently mutated tumor suppressor in clear cell renal cell carcinoma (ccRCC). Mutations in BAP1 are associated with a more aggressive and lethal disease. However, the downstream mediators of BAP1 loss in ccRCC oncogenesis are not well understood. To better understand mechanisms of BAP1-mediated tumor suppression, I have extensively characterized the very early transcriptional mediators of BAP1 loss in a postnatal kidney-specific genetic knockout model. Because VHL loss is the initiating event in ccRCC, we modeled Bap1 loss in a Vhl-deficient background. I have found that Vhl/Bap1 double-knockout cells of PT segment S2 strongly activate …

Determinants Of Corporal Punishment And Severe Physical Punishment In Egypt: A Mixed-Methods Analysis For Child Protection Policy, Marwa Moustafa Nassef

Theses and Dissertations

Corporal punishment (CP) and severe physical punishment (SPP) remain a major public health, child rights, and child protection policy concern. In Egypt, despite legislative reforms, survey-weighted analysis of the 2021 Egypt Family Health Survey (EFHS) 2021 (CAPMAS, 2022) reveals prevalence rates of 60.5% for CP and 27.4% for SPP among children aged 1–14 (author’s calculations using EFHS-2021, n=7623), yet evidence distinguishing the determinants of routine corporal punishment from escalation to severe physical punishment remains limited in low- and middle-income contexts. Guided by Bronfenbrenner’s ecological framework, this mixed-methods study identifies key drivers of CP and its escalation to SPP among Egyptian …

Metal Oxide Nanoparticle‑Integrated Phema Hydrogels: Morphology, Chemical Properties, And Biological Interaction, Venkateswar Rao, Collin Cox, Brandon Clark, Arushi Rai, Erick S. Vasquez-Guardado, Madhuri Kango-Singh, Soubantika Palchoudhury

Chemical and Materials Engineering Faculty Publications

Hydrogels offer attractive matrices for incorporating inorganic metal oxide nanoparticles (NPs) to generate multifunctional hybrid materials, but challenges remain in scalable synthesis and correlating their properties to bio-interaction. Therefore, we report the synthesis and characterization of poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogels, and pHEMA hydrogels encapsulating iron oxide or zinc oxide NPs, using a modified free-radical polymerization. Dose-dependent survivorship studies on Drosophila melanogaster revealed that both NP-embedded hydrogels are tolerated over a wide dose range (e.g., 50–200 mg), although ZnO NP-gels exhibit lower survivorship at some concentrations due to their inherent composition and a wider size distribution of iron oxide NPs.

Effect Of Temperature On The Defensive And Predatory Behavior Of The Scorpion Hadrurus Obscurus (Scorpiones: Hadruridae), Zia Nisani, Megan Bennett, Audrey Enriquez, Mel Iniquez, Emilia Martinez Rios, Brooklyn Stone

Euscorpius

Scorpions employ their stinging mechanism both for defense and predation, and being ectothermic, temperature influences their physiology and behavior. As such, we hypothesized that temperature both affects defensive stinging and prey-capture behavior in scorpions. We tested the effects of body temperature on these behaviors in the desert hairy scorpion, Hadrurus obscurus Williams, 1970. In the first experiment, scorpions were placed in temperature-controlled chambers with either high (26-28°C) or low (21- 22°C) temperatures and probed to elicit a defensive sting. We recorded the reaction time and the number of probes needed to elicit a sting. In the second experiment, we observed …

Level Of Nitrogen Fertilizer In Annual Winter Pasture (Oats-Ryegrass) And Summer Pasture (Millet): Effects On Milk Production, C J. Olivo, I L. Barreto, D A. Stiles

IGC Proceedings (1977-2023)

Two experiments were conducted with lactating Holstein cows to study the effects of different levels of nitrogen fertilizer (urea) on annual pasture: experiment 1, oats (Avena byzantina K. Koch) and ryegrass (Lolium multiflorum Lam.); experiment 2, millet (Pennisetum americanum (L.] Leche). Base fertilizer (8-28-18) was applied, and at the five-leaf stage three levels of nitrogen (N) (75, 150, and 225 kg/ha) were applied. The millet pasture followed the oat + ryegrass pasture, with the N treatments being maintained in the same areas. Two ha were planted for each treatment (total, 6 ha). In experiment 1, twelve lactating cows were randomly …

Effect Of Sheep And Cattle Grazing On A Mixed Pasture Of Perennial Ryegrass, Kikuyu, And White Clover, G J. Goold

IGC Proceedings (1977-2023)

Mixed pastlkes of perennial ryegrass (Lolium perenne L. ), kikuyugrass (Pennisetum clandestinum Hochst. ), and white clover (Trifolium repens L.) are commonly found within warm-zone areas of New Zealand but are frequently disliked because of prob­lems associated with kikuyugrass dominance. A grazing experiment was conducted to provide basic information on the response of such swards to grazing by cattle and sheep. The pastures were rotationally grazed with young sheep or cattle at two stocking levels each year from 1970 to 1975, with stocking rates adjusted twice yearly according to seasonal pasture growth. The pastures grazed by cattle …

A Comparative Evaluation Of Six Ryegrass Cultivars Under Grazing And Conservation Managements, M Ryan

IGC Proceedings (1977-2023)

Meat and dairy products command overriding importance in the Irish agricultural economy. They are derived primarily from Irish grasslands, which occupy 89% of the arable land area. Use of improved grass cultivars is probably the best means of increasing grassland output once the basics, optimal fertilizer use, and high stocking rates have been met. Objective identification of superior cultivars is the responsibility of state agencies. A recommended list, published annually in Ireland, presently contains 47 ryegrass (Lolium perenne) cultivars. There is some doubt, however, that results from small-plot cutting trials can be extrapolated to equivalent performance by grazing …

Dynamics Of Herbage Growth And Senescence In A Mixed-Species Temperate Sward Continuously Grazed By Sheep, J S. Bircham, J Hodgson

IGC Proceedings (1977-2023)

Four perennial ryegrass (Lolium perenne L.)-Poa annua L.-white clover (Trifolium repens L.) swards with herbage mass rang­ing from 500 to 1,700 kg organic matter (OM)/ha were established and maintained in as near a steady state as possible by con­tinuous but variahle stocking with sheep in order to study the influence of herbage mass on rates of herbage growth (G), senescence (S), and net production (NP), and on species balance. Estimates ofG, S, and NP were derived from measurements on individual grass tillers and clover stolon growth sites. The mean contributions to total G were 54, 20, and 4 ( ± …

Chinas Grassland Types: Their Locality And Improvement, Chia Shen-Siu

IGC Proceedings (1977-2023)

China's natural grassland is mainly distributed over the temperate zone to the west and north of the isohyet of 400 mm annual rainfall and over the hilly subtropical areas in the southern part of the country, amounting to 3 7 % of the country's total land area. Since 1949, comprehensive surveys have been conducted on several occasions in Tibet, Neimenggu Autonomous Region (Inner Mongolia), Xinjiang, and other regions. The resource of forage plants and grassland productivity has been studied. There are about 20 types and eight regions of grassland in China. On the natural steppe of the northern part of …

Production Response Of Russian Wildrye (Elymus Junceus Fisch.) To Fertilizer And Clipping, L Hofmann, J F. Karn

IGC Proceedings (1977-2023)

Experiments were conducted on nitrogen (N) fertilization of long-term Russian wildrye (RWR) (E?Jimus junceus Fisch.) pasture and the effect of simulated spring grazing on quantity of forage available for fall use. A stand of RWR that had been fer­tilized with 45 kg N/ha and grazed annually for 10 years at Mandan, North Dakota, was divided into two experiments in 1978. The first evaluated effects from all combinations of 0, 45, 90, 135, 180, and 225 kg N/ha; 0, 45, and 90 kg phosphorus (P)/ha; and 0 and 135 kg potassium (K)/ha on dry-matter (DM) yields, whereas the second compared ten …

Changes In Quality And Composition Of Alfalfa During Autumn, S C. Fleming, M Collins, N A. Jorgensen

IGC Proceedings (1977-2023)

Autumn harvest of alfalfa (Medicago sativa L.) offers a potential for obtaining additional forage production during a particular season. Little is known about the quality or changes in the chemical composition of this forage. The objective of this research was to examine changes in chemical composition, dry-matter intake (DMI), and apparent digestibility of alfalfa during autumn in Wisconsin. An established stand of Vernal alfalfa, early bud to midbud, was harvested using a flail harvester on 5 and 20 October and 5 and 18 November 1979. The forage was dried at 55°C for 72 to 96 hours in burlap bags. A …

Stockpiling Of Cool-Season Grasses In Autumn, C T. Dougherty

IGC Proceedings (1977-2023)

The practice of accumulating growth of cool-season grasses in the late summer and early autumn for subsequent grazing in late autumn and winter, known as stockpiling, has been widely accepted by beef cow-calf producers. The objectives of our study were to determine the growth characteristics of cool-season grasses in the autumn under nitrogen (N) fertilization and to in­vestigate utilization of stockpiled forages. Tall fescue (Festuca arundinacea Schreb.) has many attributes that make it highly suited to stockpiling. On Maury silt loams, Kentucky 31 tall fescue accumulated 6,500 kg/ha of dry matter from 16 August 1979 to 12 December 1979 …