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Enhancing Tea Productivity Through Integrated Fertilization And Pruning Management: A Review, Intan Ratna Dewi Anjarsari, Murgayanti, Muhamad Kadapi, Syariful Mubarok, Uum Umiyati, Salsabilah, Alifatul Azmi, Afifah Putri Ramadhan, Trifani Hana Husniah, Rosita, Azkal Azkiya Aug 2026

Enhancing Tea Productivity Through Integrated Fertilization And Pruning Management: A Review, Intan Ratna Dewi Anjarsari, Murgayanti, Muhamad Kadapi, Syariful Mubarok, Uum Umiyati, Salsabilah, Alifatul Azmi, Afifah Putri Ramadhan, Trifani Hana Husniah, Rosita, Azkal Azkiya

Jurnal Kultivasi

Tea productivity is strongly influenced by agronomic management practices, particularly fertilization and pruning, which play critical roles in regulating plant growth, physiological performance, and shoot regeneration. This review aims to synthesize current scientific evidence on how integrated fertilization and pruning management can sustainably enhance tea productivity. A narrative review approach was employed by collecting and analyzing peer-reviewed articles published between 2015 and 2025 from reputable databases, including Google Scholar and major international journals. The review highlights that balanced fertilization strategies, combining inorganic, organic, and biofertilizers, significantly improve nutrient availability, photosynthetic efficiency, and shoot yield. Pruning, when properly timed and executed, …


Performance Of Dual-Form Terminalia Catappa Organic Fertilizers On Sweet Corn Yield And Economic Viability In Tropical Highlands, Stefina Liana Sari, Eso Solihin, Rahmat Budiarto Aug 2026

Performance Of Dual-Form Terminalia Catappa Organic Fertilizers On Sweet Corn Yield And Economic Viability In Tropical Highlands, Stefina Liana Sari, Eso Solihin, Rahmat Budiarto

Jurnal Kultivasi

Recycling underutilized plant biomass into organic fertilizers underpins low-input cropping strategies, but liquid and solid formulations derived from a common feedstock have seldom been evaluated side by side under field conditions. This study aimed to (i) characterize the physicochemical properties and safety profile of a liquid organic fertilizer (LOF) and a crumb-type organic fertilizer (COF) co-produced from Terminalia catappa leaf compost, (ii) compare their effects on sweet corn growth and yield, (iii) determine relative agronomic effectiveness (RAE), and (iv) evaluate economic feasibility of the most promising organic–inorganic combinations. We produced LOF and COF through aerobic composting of Terminalia catappa leaves …


Metabolic Dynamics Of Secondary Metabolites In Arabica Coffee (Coffea Arabica): From Biosynthesis To Post-Harvest Transformations, Kamilrashid Hadi Dwitama, Yudithia Maxiselly, Cucu Suherman, Santi Rosniawaty Aug 2026

Metabolic Dynamics Of Secondary Metabolites In Arabica Coffee (Coffea Arabica): From Biosynthesis To Post-Harvest Transformations, Kamilrashid Hadi Dwitama, Yudithia Maxiselly, Cucu Suherman, Santi Rosniawaty

Jurnal Kultivasi

Coffee (Coffea arabica) is a globally significant beverage whose sensory profile and physiological effects derive from a complex matrix of secondary metabolites. This review presents a comprehensive "lifecycle" perspective of three pivotal classes: the alkaloid caffeine, phenolic chlorogenic acids (CGA), and the diterpenoids cafestol and kahweol. Here, 'lifecycle' defines a metabolite's continuous biochemical trajectory, tracking its genetic origin and ecological function in the plant through structural modifications during fermentation, drying, storage, and roasting. These classes are highlighted because they serve as the primary drivers of bitterness, acidity, and health bioactivities with fundamentally distinct transformational pathways. Following a systematic methodology, this …


The Effectiveness Of Bacillus-Coated Npk Fertilizer On Broccoli Growth, Nutrient Status, Rhizosphere Bacillus Population, Yield, And Flower Quality, Betty Natalie Fitriatin, Rara Rahmatika Risanti, Reginawanti Hindersah, Fasa Aditya Hanindipto, Gita Bina Nugraha Aug 2026

The Effectiveness Of Bacillus-Coated Npk Fertilizer On Broccoli Growth, Nutrient Status, Rhizosphere Bacillus Population, Yield, And Flower Quality, Betty Natalie Fitriatin, Rara Rahmatika Risanti, Reginawanti Hindersah, Fasa Aditya Hanindipto, Gita Bina Nugraha

Jurnal Kultivasi

Efforts to increase the availability of macronutrients in soil have relied on inorganic fertilization, particularly NPK fertilizers. However, global challenges in the fertilizer raw material supply chain, including price fluctuations and availability, are driving the need for more efficient and sustainable fertilizer alternatives. The field experiment was conducted in Baruajak, Lembang District, West Java, Indonesia, to evaluate the effectiveness of Bacillus-coated NPK fertilizer on broccoli (Brassica oleracea var. italica) growth, nutrient status, rhizosphere Bacillus population, yield, and flower quality. The experiment used a randomized complete block design with 15 fertilizer treatments and three replications. Treatments consisted of two coated NPK …


The Effect Of Silica-Enriched Rice Husk Biochar And Npk Fertilizer On Soil Total Nitrogen, Nitrogen Uptake, And Yield Of Lowland Rice, Emma Trinurani Sofyan, Oviyanti Mulyani, Ania Citraresmini, Meddy Rachmadi, Kharmelia Sandra Livia Aug 2026

The Effect Of Silica-Enriched Rice Husk Biochar And Npk Fertilizer On Soil Total Nitrogen, Nitrogen Uptake, And Yield Of Lowland Rice, Emma Trinurani Sofyan, Oviyanti Mulyani, Ania Citraresmini, Meddy Rachmadi, Kharmelia Sandra Livia

Jurnal Kultivasi

Rice production in Indonesia increasingly relies on agricultural intensification, which can accelerate soil degradation and reduce fertilizer-use efficiency. Therefore, sustainable soil management is needed to maintain soil fertility. Silica-enriched rice husk biochar (biochar-silica) is a promising soil amendment because it improves soil properties and nutrient retention. This study evaluated the effects of biochar-silica and NPK fertilization on soil total nitrogen, nitrogen uptake, and yield of lowland rice (Oryza sativa L.). The experiment was conducted from September 2025 to January 2026 using a two-factor randomized block design with nine treatment combinations and three replications. The treatment consisted of three levels of …


Effects Of Ab Mix Hydroponic Solution And Ameliorant Mixtures On Cayenne Pepper Growth And Yield In An Inceptisols, Tien Turmuktini, Betty Natalie Fitriatin, Tualar Simarmata, Firda Widayanti, Nuryanti, Lia Amalia, Elly Roosma Ria, Linlin Parlinah Aug 2026

Effects Of Ab Mix Hydroponic Solution And Ameliorant Mixtures On Cayenne Pepper Growth And Yield In An Inceptisols, Tien Turmuktini, Betty Natalie Fitriatin, Tualar Simarmata, Firda Widayanti, Nuryanti, Lia Amalia, Elly Roosma Ria, Linlin Parlinah

Jurnal Kultivasi

Cayenne pepper (Capsicum frustescens L.) cultivation faces several problems, including acidic pH and inadequate nutrient management. These problems can be addressed by using a mixture of various ameliorants and AB mix nutrient solutions. This study aimed to determine the effect of ameliorant mixture dosage and AB mix solution concentration on soil chemical properties, growth, and yield of cayenne pepper. The experiment used a randomized block design, consisting of two factors: nutrient solution concentration and ameliorant dosage. The factor of nutrient solution concentration consisted of four levels, i.e., 700, 1000, 1300, and 1600 ppm, while the factor of ameliorant dosage also …


Land-Use Transitions And Carbon Emissions Of Aquaculture Expansion In The Brazilian Amazon, Felipe S. Pacheco, Sebastian A. Heilpern, Rafael M. Almeida, Suresh A. Sethi, Marcela Miranda, Nicholas Ray, Laura Greenstreet, Joshua Fan, Brendan H. Rappazzo, Marcelo Gomes Da Silva Aug 2026

Land-Use Transitions And Carbon Emissions Of Aquaculture Expansion In The Brazilian Amazon, Felipe S. Pacheco, Sebastian A. Heilpern, Rafael M. Almeida, Suresh A. Sethi, Marcela Miranda, Nicholas Ray, Laura Greenstreet, Joshua Fan, Brendan H. Rappazzo, Marcelo Gomes Da Silva

School of Earth, Environmental, & Marine Sciences Faculty Publications

Accounting for land-use change underlying food sector expansion is critical for conserving ecosystem integrity. This challenge is particularly acute in the Amazon, where the conversion of forests for food production is pronounced and has broad implications for global biodiversity and the cycling of water and carbon. Here, we analyze land-use transitions associated with aquaculture development in the Brazilian Amazon. We found that a 450-fold increase in aquaculture pond area from 1985 to 2022 occurred primarily on pasturelands (87%) but also included wetland conversion (4%) and deforestation (5%). Notably, continued growth can be sustained within already altered landscapes: In Rondônia, the …


Synthesis, Utilization And Biological Evaluation Of Β-Hairpin Peptides As Inhibitors Of Immune Checkpoints, Sarah Naylon Aug 2026

Synthesis, Utilization And Biological Evaluation Of Β-Hairpin Peptides As Inhibitors Of Immune Checkpoints, Sarah Naylon

Electronic Theses and Dissertations 2020 - Present

Peptide therapeutics have emerged as promising alternatives to monoclonal antibodies because of their smaller size, improved tissue penetration, and synthetic versatility. Yet their broader application is often limited by poor structural stability, rapid clearance, and reduced target residence times. This dissertation describes the design, synthesis, structural characterization, and biological evaluation of β-hairpin peptides as inhibitors of immune checkpoints and as peptide vaccine scaffolds while developing strategies to overcome these limitations. At first a series of antibody-derived β-hairpin peptides (mimics of complementary determining region heavy-chain 3: CDR-H3s) as covalent inhibitors of the PD-1/PD-L1 immune checkpoint were investigated. Electrophilic warheads were incorporated …


Palmnet: Confidence-Calibrated Edge-Cloud Ai For Field Diagnosis Of Date Palm Diseases, Muntadher Kareem, Raed Majeed Aug 2026

Palmnet: Confidence-Calibrated Edge-Cloud Ai For Field Diagnosis Of Date Palm Diseases, Muntadher Kareem, Raed Majeed

Karbala International Journal of Modern Science

Date palm (Phoenix dactylifera L.) is a cornerstone crop for Iraq and the wider MENA region, yet reliable in-field diagnosis of leaf disorders remains slow, labour-intensive, and constrained by a limited pool of agronomists. This paper presents PalmNet, a full-stack diagnostic system that classifies nine leaf conditions through a calibrated edge-cloud framework. The system is developed and evaluated on a public dataset of 3,089 field images spanning the nine classes, using a 70/15/15 stratified split. A ShuffleNetV2 student network, distilled from a ConvNeXt-Tiny teacher, is deployed on two complementary edge endpoints: a Raspberry Pi Zero 2 W field station …


Numerical Parametric Assessment Of Lap-Spliced Reinforced Concrete Beams With Steel, Gfrp, And Hybrid Reinforcement, Salah Mohsen, Mohamed H. Makhlouf, Marwa I. Badawi, Gamal Ismail Aug 2026

Numerical Parametric Assessment Of Lap-Spliced Reinforced Concrete Beams With Steel, Gfrp, And Hybrid Reinforcement, Salah Mohsen, Mohamed H. Makhlouf, Marwa I. Badawi, Gamal Ismail

Mansoura Engineering Journal

This study presents a numerical parametric investigation into the flexural performance of reinforced concrete beams incorporating different reinforcement types and lap splice configurations, based on finite element modeling using ABAQUS and benchmarked against ACI 440 design provisions. Sixteen beam models were developed and analyzed under four-point bending to evaluate the influence of reinforcement type (steel, GFRP, and hybrid), splice length, and number of spliced bars on the global structural response. The results indicate that splice detailing plays a governing role in controlling failure mode and ductility. Beams without lap splices exhibited enhanced ductile behavior, whereas shorter splice lengths and higher …


Modeling The Clonal Rosette Composition Of A Bromeliaceae Genet: A Combinatorial Approach, Layla K. Lammers, Erin N. Bodine Aug 2026

Modeling The Clonal Rosette Composition Of A Bromeliaceae Genet: A Combinatorial Approach, Layla K. Lammers, Erin N. Bodine

Spora: A Journal of Biomathematics

Bromeliaceae, a neo-tropical plant family encompassing over 3,000 species, exhibit two modes of reproduction: sexual reproduction via flowers and seeds, and asexual reproduction via genetically identical clonal rosettes. The vegetative bodies of bromeliads form rosettes with new leaves emerging from the center and clonal rosettes emerging above a single leaf in the rosette, resulting in a genetic individual consisting of a seed-grown rosette and multiple iterations of clonal rosettes. This research develops a combinatorial model of probability that a single genetic individual will include at least n clonal rosettes when a single rosette can produce at most 1 or 2 …


Enhancing Salinity Tolerance In Phyla Nodiflora L. With Potassium Humate: Crosstalk Between Osmolytes, Antioxidants, And Mineral Uptake, Fatemeh Sadeghi, Somayeh Esmaeili, Mehrangiz Chehrazi Aug 2026

Enhancing Salinity Tolerance In Phyla Nodiflora L. With Potassium Humate: Crosstalk Between Osmolytes, Antioxidants, And Mineral Uptake, Fatemeh Sadeghi, Somayeh Esmaeili, Mehrangiz Chehrazi

Turkish Journal of Agriculture and Forestry

Salinity stress impairs plant growth, nutrient homeostasis, and metabolism, particularly in arid ecosystems. Phyla nodiflora, a ground cover used for erosion control, shows preliminary salinity tolerance, but the mechanistic basis of its long-term adaptation and the potential for enhancement via potassium humate (KH) were unknown. Plant growth, key biochemical attributes, and nutrient uptake were assessed to elucidate how KH modulates physiological performance under increasing salinity. In a 129-day greenhouse experiment, plants were exposed to five salinity levels (0 to 16 dS m⁻¹ NaCl) and three KH concentrations (0, 500, and 1000 mg L⁻¹). Severe salinity (16 dS m⁻¹) without KH …


An In-Depth Study Of Fruit Preservation: Effect Of Calcium Chloride And Methyl Jasmonate Applications On Quality And Biochemical Properties Of Cherry Fruits During Cold Storage, Muhammet Ali̇ Gündeşli̇ Aug 2026

An In-Depth Study Of Fruit Preservation: Effect Of Calcium Chloride And Methyl Jasmonate Applications On Quality And Biochemical Properties Of Cherry Fruits During Cold Storage, Muhammet Ali̇ Gündeşli̇

Turkish Journal of Agriculture and Forestry

Sweet cherry (Prunus avium L.) is a highly perishable fruit that undergoes rapid quality deterioration during postharvest storage. This study evaluated the effects of postharvest applications of Methyl Jasmonate (MeJA, 1 mM) and Calcium Chloride (CaCl₂, 2%), applied individually and in combination, on maintaining the quality and biochemical properties of cherries during 21 days of cold storage at 0 ± 1 °C. Key parameters including weight loss, decay rate, soluble solids content (SSC), pH, titratable acidity, respiration rate, phenolic profile, and organic acid composition were monitored. The combined MeJA + CaCl₂ treatment was consistently more effective than individual applications in …


Robust Soil Moisture Content Detection Based On Data Augmentation Under Different Testing Conditions, Yang Li, Chenghao Liu, Jing Nie, Jingbin Li Aug 2026

Robust Soil Moisture Content Detection Based On Data Augmentation Under Different Testing Conditions, Yang Li, Chenghao Liu, Jing Nie, Jingbin Li

Turkish Journal of Agriculture and Forestry

Accurate and cost-effective monitoring of soil moisture content is essential for the development of precision agriculture and the optimization of water resource management. While low-frequency acoustic signals are used to detect soil moisture content, models trained with controlled laboratory acoustic data often exhibit significant performance degradation with field data due to their sensitivity to environmental noise, soil heterogeneity, and structural variations. This study proposes a novel framework to enhance model robustness and generalization by integrating a WGAN-GP network data augmentation strategy into the soil moisture content workflow. This framework is designed to generate high-quality and diverse data on different soil …


Landscape Character Analysis And Assesment At Local Scale, Eli̇f Önal, Serkan Özer Aug 2026

Landscape Character Analysis And Assesment At Local Scale, Eli̇f Önal, Serkan Özer

Turkish Journal of Agriculture and Forestry

​Landscape areas are one of the most important elements of human life all over the world. Varied landscape areas are a valuable natural resource and have high cultural value. The first step to ensure the effective landscape use is to identify these areas, analyze them in detail, and determine their characteristics. The northeastern Anatolia region in Türkiye has a rich diversity of landscapes because of varied geographic, climatic, and topographic features. The aim of this study was to identify the landscape character types in the Tortum district, located in the Tortum River basin in northeastern Türkiye, and to assess the …


Long-Term Effects Of Harvesting Disturbance And Site Preparation On Soil Properties And Tree Growth In A Loblolly Pine (Pinus Taeda) Forest, Kyle M. Caccamesi Aug 2026

Long-Term Effects Of Harvesting Disturbance And Site Preparation On Soil Properties And Tree Growth In A Loblolly Pine (Pinus Taeda) Forest, Kyle M. Caccamesi

LSU Master's Theses

Productivity decline between rotations has long been a concern in intensively managed forest plantations. Research done over the last century has provided greater clarity on why this phenomenon occurs. The objective of this research was to observe long-term soil and tree growth characteristics that are likely to be influenced by operational harvesting activities. The experiment was conducted in Washington Parish, Louisiana on a site dominated by Ruston soil series, a well-drained, fine loamy, siliceous and thermic typic Paleudult. A randomized complete block design with 2 x 2 x 2 factorial treatments was used. The treatment factors were harvesting method, fertilization, …


Effect Of Rangeland Quality On Rumen Development Of Angora (Mohair) Goat Kids And Bucks, Betül Zehra Sariçi̇çek Aug 2026

Effect Of Rangeland Quality On Rumen Development Of Angora (Mohair) Goat Kids And Bucks, Betül Zehra Sariçi̇çek

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to determine the effect of rangeland quality on the rumen development of Angora goat kids and bucks. Twenty male singleton Angora goat kids with similar birth dates and birth weights were selected from each farm in an area with three different rangeland quality levels (good, medium, or poor) in Ankara Province. The kids were weaned at 60 days of age and then grazed completely on rangeland until slaughter. Rumen volumetric and papillary development of animals slaughtered at 4 and 7 months of age were determined. Empty rumen length, width, and weight were affected by rangeland quality …


Full Issue, Volume 14, Number 1., Donna J. Peterson Dr., Scott Cummings, Elizabeth Gregory North Aug 2026

Full Issue, Volume 14, Number 1., Donna J. Peterson Dr., Scott Cummings, Elizabeth Gregory North

Journal of Human Sciences and Extension

No abstract provided.


Impact Of Stress & Fatigue On Cardiovascular Function In Young Pilots: A Thematic Review, Swarna Manoj Aug 2026

Impact Of Stress & Fatigue On Cardiovascular Function In Young Pilots: A Thematic Review, Swarna Manoj

Discovery Day - Daytona Beach

Impact of Stress & Fatigue on Cardiovascular Function in Young Pilots: A Thematic Review   Authors: Swarna Manoj, Scott Ferguson   Keywords: pilot, stress, fatigue, heart rate variability (HRV), cardiovascular disease (CVD) Aviation is expanding globally and young pilots are the major workforce, yet FAA protocols require mandatory ECG only from age 35, with annual cardiac screening after age 40. Over the past five years, a pattern of sudden cardiac arrests in pilots particularly aged 30-40 has urged safety concerns. Despite the existing literature examining fatigue, burnout, stress, sleep hygiene and circadian disruption, only few studies systematically examine how these factors impact …


Observing Antibiotic Resistance In Bacterial Co-Cultures Under Simulated Microgravity, Tyler Jenkins, Marina Vaden Aug 2026

Observing Antibiotic Resistance In Bacterial Co-Cultures Under Simulated Microgravity, Tyler Jenkins, Marina Vaden

Discovery Day - Daytona Beach

Bacteria grow in complex natural environments with multiple factors affecting their growth, metabolism, and physiology. While astronauts are still preparing to travel to Mars, scientists must learn how to simulate a more realistic Martian environment. While a small volume of publications investigates the independent effects of microgravity or Martian regolith on microorganisms (Liao et al., 2025; Allen et al., 2022; Naz et al., 2023; Duri et al., 2025), to our knowledge no current experiments exist on the joint effects of microgravity and Martian simulant on a co-culture. This experiment aims to investigate the effect of a microgravity analog on the …


Instruction Guide, Mark C. Hall Aug 2026

Instruction Guide, Mark C. Hall

Analytical Biochemistry: A Practical Handbook for Undergraduates

The instruction guide provides useful information for setting up and running the lab activities each week and assessing student preparation, performance, and comprehension.


The Gut-Bladder Axis: How Symbiont Microbes Alter Urinary Tract Infections, Benjamin S. Olson Aug 2026

The Gut-Bladder Axis: How Symbiont Microbes Alter Urinary Tract Infections, Benjamin S. Olson

Arts & Sciences Graduate Student Theses and Dissertations

Urinary tract infections (UTIs) are among the most common bacterial infections worldwide. Consequently, they are one of the leading indications for antibiotic prescription. Despite the typically successful treatment of an acute UTI, recurrent infections are exceedingly common, particularly among women. Nearly a quarter of otherwise healthy women will suffer recurrent UTIs (rUTI) after a primary UTI; why these select individuals are continually afflicted is unkown. There are no successful therapeutics to treat rUTI representing a gap not just in the medical toolkit but in our understanding of why rUTI is so prevalent. There are many hypotheses for the risk factors …


Effects Of Human-Animal Interaction On Positive Youth Development: A Replication Study, Allison Pachunka, Jay Jeffries, Lisa Karr, Lena Luck, Bryan A. Reiling, Douglas H. Schultz, Jeffrey R. Stevens Aug 2026

Effects Of Human-Animal Interaction On Positive Youth Development: A Replication Study, Allison Pachunka, Jay Jeffries, Lisa Karr, Lena Luck, Bryan A. Reiling, Douglas H. Schultz, Jeffrey R. Stevens

People and Animals: The International Journal of Research and Practice

Interacting with animals can improve health and well-being across the lifespan. Some programs such as 4-H and FFA center around youth interacting with animals, potentially enhancing youth development. Mueller (2014) investigated whether these interactions and attitudes about animals influenced measures of positive youth development. The aim of our studies was to replicate Mueller’s methods and extend her work by evaluating whether membership in animal-focused youth programs moderate associations between interactions, attitudes, and positive youth development. We did not find strong relationships among human–animal inter-action and positive youth development, which failed to replicate Mueller’s findings. However, we did find relationships between …


Oregon State Rank Assessment For Deer-Cabbage (Nephrophyllidium Crista-Galli), Lindsey K. Wise Aug 2026

Oregon State Rank Assessment For Deer-Cabbage (Nephrophyllidium Crista-Galli), Lindsey K. Wise

Institute for Natural Resources Publications

Oregon state conservation status assessment for Deer-cabbage (Nephrophyllidium crista-galli) using NatureServe methodology, 2026.


Malnutrition Risk, Nutrition Insecurity, Barriers, And Facilitators To Dietary Management Among Adults With Inflammatory Bowel Disease In The Us Rocky Mountain Region: A Cross-Sectional Mixed-Methods Study, Heather Burr, Carrie Durward, Korry Hintze, Getrude Mphwanthe Aug 2026

Malnutrition Risk, Nutrition Insecurity, Barriers, And Facilitators To Dietary Management Among Adults With Inflammatory Bowel Disease In The Us Rocky Mountain Region: A Cross-Sectional Mixed-Methods Study, Heather Burr, Carrie Durward, Korry Hintze, Getrude Mphwanthe

Nutrition, Dietetics, and Food Science Student Research

We conducted an online cross-sectional study to assess malnutrition risk, food and nutrition insecurity, and perceived barriers and facilitators to dietary management among adults (18–64 years old) with a self-reported clinical diagnosis of inflammatory bowel disease (IBD) in outpatient and community settings. We assessed malnutrition risk using the Saskatchewan IBD-Nutrition Risk screening tool, food security risk using the two-item Hunger Vital Signs questionnaire, and nutrition security risk using a validated four-item tool. Open-ended questions elucidated barriers and facilitators to dietary management of IBD. Among 57 participants who self-reported a clinical diagnosis of IBD, 52.6% (n = 30/57) had ulcerative colitis, …


Interplay Between Patterning And Morphogenesis During Zebrafish Embryonic Development, Chia-Teng Chang Aug 2026

Interplay Between Patterning And Morphogenesis During Zebrafish Embryonic Development, Chia-Teng Chang

Arts & Sciences Graduate Student Theses and Dissertations

Patterning and morphogenesis occur concurrently during embryonic development. In many contexts, both processes are regulated by morphogen signaling: morphogens specify spatially organized cell identities while also influencing the cell behaviors that shape tissues. This creates a reciprocal problem. Morphogen signaling can affect how cells move, while cell movement can change how cells experience and interpret morphogen signals. This dissertation investigates this reciprocal problem during zebrafish gastrulation and neurulation. First, it examines how the ventral-to-dorsal bone morphogenetic protein (BMP) activity gradient regulates germ-layer morphogenesis during gastrulation. BMP signaling is known to pattern dorsal–ventral cell fate and regulate mesodermal convergence and extension …


Assessing Non-Thermal Plasma In Cutaneous Regeneration, Arden Rodriguez, Meliah Martin, Graeme Grainger, Arineh Shahbazi Aug 2026

Assessing Non-Thermal Plasma In Cutaneous Regeneration, Arden Rodriguez, Meliah Martin, Graeme Grainger, Arineh Shahbazi

Discovery Day - Daytona Beach

Chronic and acute wounds remain a significant clinical challenge, particularly in austere and resource-limited environments where access to advanced care is restricted. Non-Thermal Plasma (NTP) has emerged as a promising, non-invasive modality with reported antimicrobial and regenerative properties; however, its mechanisms of action and effects on human skin tissue require further characterization. The scope of this project is to engineer and utilize a 3D human skin epithelial model to evaluate the effects of NTP on wound healing. We will first build a 3D epithelial tissue model that will simulate human skin, followed by modeling and evaluation of wound pathology and …


From Sunscreen To Seafood: Tracing The Ecological And Human Health Risks Of Oxybenzone Contamination In Local Fish, Alyssa Brasko Aug 2026

From Sunscreen To Seafood: Tracing The Ecological And Human Health Risks Of Oxybenzone Contamination In Local Fish, Alyssa Brasko

Discovery Day - Daytona Beach

Oxybenzone (benzophenone-3) is a widely used ultraviolet (UV) filter in sunscreens, offering protection against harmful radiation but raising significant environmental concerns due to its persistence and toxicity in aquatic ecosystems. This ongoing study aims to investigate the bioaccumulation and ecological impact of oxybenzone in fish species along Florida’s Space Coast, contributing to a broader understanding of its environmental fate and potential human exposure through seafood consumption. The research will employ advanced analytical techniques, including Gas Chromatography-Mass Spectrometry (GC-MS) and High-Performance Liquid Chromatography (HPLC), to quantify oxybenzone levels in locally sourced fish. Fish samples will be obtained from the non-profit organization …


Modeling Population Growth With Logistic And Modified Logistic Equations, Mihil Dimpal Patel Aug 2026

Modeling Population Growth With Logistic And Modified Logistic Equations, Mihil Dimpal Patel

Discovery Day - Daytona Beach

Population growth models are essential tools for understanding how biological populations change over time under environmental constraints. This study examines population dynamics by comparing the classical exponential growth model with the logistic growth model. While exponential growth assumes unlimited resources and results in unbounded population increase, the logistic model incorporates a carrying capacity that limits growth as resources become scarce. To better represent real-world conditions, the logistic model is extended by introducing modifications such as harvesting terms and time-varying carrying capacities, which account for external removal of individuals and changing environmental limits. The equilibria of these models are determined, and …


Exercise Intensity And The Effects On Mood And Wellbeing, Emily Amortegui, Ashley Albert, Riley Ensor, Keyanna Keyanna Jackson Aug 2026

Exercise Intensity And The Effects On Mood And Wellbeing, Emily Amortegui, Ashley Albert, Riley Ensor, Keyanna Keyanna Jackson

Discovery Day - Daytona Beach

With many students dealing with anxiety, sadness, and high levels of stress, mental health issues among college students have grown in intensity. A lot of research has been done on the possible benefits of physical activity for mental health, but most of it focuses on correlations rather than the biological mechanisms. The purpose of this study is to examine the effects of varying exercise intensities on physiological stress markers and mood in college students ages 18 to 25. To assure precise intensity levels, participants from Embry-Riddle Aeronautical University will work out at low, moderate, and high intensities while wearing heart …