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Innovative Approaches To Estimating Sessile Oak Stem Volume: Comparing Additive Models And Ensemble Machine Learning, Maria J. Diamantopoulou, Abbas Şahi̇n, Ramazan Özçeli̇k Aug 2025

Innovative Approaches To Estimating Sessile Oak Stem Volume: Comparing Additive Models And Ensemble Machine Learning, Maria J. Diamantopoulou, Abbas Şahi̇n, Ramazan Özçeli̇k

Turkish Journal of Agriculture and Forestry

Sessile oak is an important deciduous forest tree species across Türkiye and Europe. Estimating individual tree and stand volumes is essential for growth and yield models, as these predictions play a critical role in assessing forest management, economics, and fire risk. In pursuit of this goal, nonlinear seemingly unrelated regression (NSUR) was used for the simultaneous fitting of stem volume components, and compared to three ensemble machine learning techniques: gradient boosting regression (GBr), XGBoost regression (XGBr), and random forest regression (RFr). NSUR accounts for correlations between error terms across different equations, leading to more efficient parameter estimates than if each …


Insights From Multivariate Analysis Of Seed Vigor Traits In Rapeseed And Mustard (Brassica Spp.) Genotypes, Ayushi Yadav, Shiv Kumar Yadav, Ravish Choudhary, Sushma Mudlupura Kumar, Anbalagan Anumantharaj, Rakesh Bharadwaj, Rashmi Yadav, Yashpal Taak, Navinder Saini, Sneha Adhikari, Sangita Yadav Aug 2025

Insights From Multivariate Analysis Of Seed Vigor Traits In Rapeseed And Mustard (Brassica Spp.) Genotypes, Ayushi Yadav, Shiv Kumar Yadav, Ravish Choudhary, Sushma Mudlupura Kumar, Anbalagan Anumantharaj, Rakesh Bharadwaj, Rashmi Yadav, Yashpal Taak, Navinder Saini, Sneha Adhikari, Sangita Yadav

Turkish Journal of Agriculture and Forestry

Rapeseed and mustard (Brassica spp.) are critical oilseed crops contributing significantly to global edible oil production. In India, Indian mustard (Brassica juncea) dominates Brassica cultivation, yet the country remains heavily dependent on edible oil imports due to insufficient domestic production. Enhancing seed vigor, a key determinant of crop establishment and yield, offers a promising avenue for improving productivity. This study assessed the genetic diversity of 300 rapeseed and mustard genotypes for seed vigor traits using multivariate analysis, including principal component analysis (PCA) and cluster analysis. Eleven seed vigor-related traits were evaluated, and PCA revealed four principal components with eigenvalues greater …


Effects Of Polyethylene Films With Different Uv-A Transmittance On Quality Parameters And Physiology Of Greenhouse-Grown Tomato, Nefi̇se Yasemi̇n Tezcan, Mustafa Erkan, Ahmet Kurunç Aug 2025

Effects Of Polyethylene Films With Different Uv-A Transmittance On Quality Parameters And Physiology Of Greenhouse-Grown Tomato, Nefi̇se Yasemi̇n Tezcan, Mustafa Erkan, Ahmet Kurunç

Turkish Journal of Agriculture and Forestry

In this study, the effects of three different polyethylene (PE) greenhouse covering materials (CMs) with varying thicknesses and ultraviolet-A (UV-A) transmittance on greenhouse microclimate, plant growth, yield, fruit quality, and chlorophyll fluorescence parameters (Chl FPs) in tomatoes were investigated. The CMs used in the study were 180 μm thick ultraviolet (UV) + ethylene vinyl acetate (EVA) + long-wave infrared (IR) + light diffuser (LD) + antifog (AF) added PE (CM1), 160 μm thick PLUS UV + EVA + IR + LD + AF added PE (CM2), and 200 μm thick UV + EVA + IR + LD added PE (CM3). …


Assessment Of Bat Species (Mammalia: Chiroptera) In Canubas Cave, Kibawe, Bukidnon, Philippines, Jurriel Mari D. Alce, Jasmine Rouida M. Abenes, Leo Gabriel Cervantes, Matthew Eli K. Llacer, Von Zhyrus P. Oche, Ian Jay P. Saldo, Jhovel Roy D. Calo Aug 2025

Assessment Of Bat Species (Mammalia: Chiroptera) In Canubas Cave, Kibawe, Bukidnon, Philippines, Jurriel Mari D. Alce, Jasmine Rouida M. Abenes, Leo Gabriel Cervantes, Matthew Eli K. Llacer, Von Zhyrus P. Oche, Ian Jay P. Saldo, Jhovel Roy D. Calo

Sinaya: A Philippine Journal for Senior High School Teachers and Students

Bats, flying mammals, are essential to ecosystems, playing vital roles in pollination, seed dispersal, and insect control. Despite their ecological importance, no prior bat research exists for Canubas Cave, Kibawe, Bukidnon. This study aimed to assess the bat species at the site, documenting their morphometric data, diversity and richness indices, and conservation statuses. A purposive sampling design was implemented by setting up mist nets inside and outside the cave. A total of 13 individuals were identified, comprising three species from two families: Rousettus amplexicaudatus and Eonycteris spelaea (family Pteropodidae, fruit bats), and Miniopterus schreibersii (family Miniopteridae, bent-winged bats). Based on …


Caf-Macrophage Crosstalk Fuels Immunotherapy Resistance, Yang Liu, Linghua Wang Aug 2025

Caf-Macrophage Crosstalk Fuels Immunotherapy Resistance, Yang Liu, Linghua Wang

Faculty, Staff and Student Publications

No abstract provided.


In Silico Investigation Of The Anticancer Activity Of Natural Isoquinoline Alkaloids Targeting The Monoamine Oxidase A Enzyme, Reham A. Al-Anssari, Anwar H. Ali, Ola Adel Al-Saad, Shaker A.N. Al-Jadaan Aug 2025

In Silico Investigation Of The Anticancer Activity Of Natural Isoquinoline Alkaloids Targeting The Monoamine Oxidase A Enzyme, Reham A. Al-Anssari, Anwar H. Ali, Ola Adel Al-Saad, Shaker A.N. Al-Jadaan

AUIQ Complementary Biological System

Monoamine oxidase A (MAO-A) has recently been identified as a candidate for cancer therapy due to its roles in tumor development and growth. Conventional approaches for the discovery of MAO-A inhibitors are both costly and time-consuming. The objective of this work was to apply in silico methods to predict natural isoquinoline alkaloids capable of acting as potent MAO-A inhibitors, and to establish this class of compounds as potential sources of a cost-effective anticancer therapy. Twenty-one natural isoquinoline alkaloids were subjected to a multistep computer-aided drug discovery protocol. The compounds were initially screened for pharmacokinetic (ADME), toxicity, and drug-likeliness properties by …


Native Ticks As A Model For The Effectiveness Of Fire As A Tool For The Management Of Cattle Fever Ticks In South Texas, Lauren P. Maestas, Sarah E. Mays Maestas, Kathleen M. Yeater, Manuel Zavala, Reyes Garcia, John A. Goolsby Aug 2025

Native Ticks As A Model For The Effectiveness Of Fire As A Tool For The Management Of Cattle Fever Ticks In South Texas, Lauren P. Maestas, Sarah E. Mays Maestas, Kathleen M. Yeater, Manuel Zavala, Reyes Garcia, John A. Goolsby

School of Integrative Biological & Chemical Sciences Faculty Publications

The species of cattle fever ticks (CFT) present in North America, Rhipicephalus (=Boophilus) annulatus, and R. microplus, remain an important agricultural and economic burden. The use of acaricides to control CFT has been a common practice over the past half century. However, alternative strategies for control are needed to improve the options for sustainable pest control. Fire is a tool to manage vegetation, and some evidence supports its potential for use to control ticks. We evaluated the effectiveness of fire as a management tool for ticks in South Texas. Our site was a 28.2-ha property in Cameron …


Tracing Priming Effects In Palsa Peat Carbon Dynamics Using A Stable Isotope-Assisted Metabolomics Approach, Christian Ayala-Ortiz, Moira Hough, Elizabeth K. Eder, David W. Hoyt, Rosalie K. Chu, Jason Toyoda, Steven J. Blazewicz, Patrick M. Crill, Ruth Varner, Scott R. Saleska, Virginia I. Rich, Malak M. Tfaily Aug 2025

Tracing Priming Effects In Palsa Peat Carbon Dynamics Using A Stable Isotope-Assisted Metabolomics Approach, Christian Ayala-Ortiz, Moira Hough, Elizabeth K. Eder, David W. Hoyt, Rosalie K. Chu, Jason Toyoda, Steven J. Blazewicz, Patrick M. Crill, Ruth Varner, Scott R. Saleska, Virginia I. Rich, Malak M. Tfaily

Michigan Tech Publications

Introduction: Peatlands store up to a third of global soil carbon, and in high latitudes their litter inputs are increasing and changing in composition under climate change. Although litter significantly influences peatland carbon and nutrient dynamics by changing the overall lability of peatland organic matter, the physicochemical mechanisms of this impact—and thus its full scope—remain poorly understood. Methods: We applied multimodal metabolomics (UPLC-HRMS, 1H NMR) paired with 13C Stable Isotope-Assisted Metabolomics (SIAM) to track litter carbon and its potential priming effects on both existing soil organic matter and carbon gas emissions. Through this approach, we achieved molecule-specific tracking …


Statistical Analysis Of Multi-Endpoint Phenotypic Screening Increases Sensitivity Of Planarian Neurotoxicity Testing, Danielle Ireland, L. J. Word, Eva-Maria S. Collins Aug 2025

Statistical Analysis Of Multi-Endpoint Phenotypic Screening Increases Sensitivity Of Planarian Neurotoxicity Testing, Danielle Ireland, L. J. Word, Eva-Maria S. Collins

Biology Faculty Works

There is an urgent need for high-throughput screening (HTS) models to replace, refine, and/or reduce (“3Rs”) vertebrate toxicity testing. Replacing in vivo animal studies is challenging for neurotoxicity and developmental neurotoxicity (DNT), where the functional relevancy of adverse outcomes needs to be assessed on the whole organism. We previously screened the NTP 87-compound library (NTP87), consisting of known and suspected developmental neurotoxicants, and showed that planarian HTS can identify known (developmental) neurotoxicants. Because analysis methods can impact screening results, and our original analysis used the lowest-observed-effect-level (LOEL) only, we hypothesized that the use of state-of-the-art statistical analysis would increase the …


Prefrontal Cortex Astrocytes Modulate Distinct Neuronal Populations To Control Anxiety-Like Behavior, Eunyoung Kim, Hairuo Du, Yanqi Tan, Brandon L Brown, Yaowen Chang, Blanca Díaz-Castro, Jonathan V Sweedler, Xinzhu Yu Aug 2025

Prefrontal Cortex Astrocytes Modulate Distinct Neuronal Populations To Control Anxiety-Like Behavior, Eunyoung Kim, Hairuo Du, Yanqi Tan, Brandon L Brown, Yaowen Chang, Blanca Díaz-Castro, Jonathan V Sweedler, Xinzhu Yu

Faculty, Staff and Student Publications

Accumulating evidence has supported diverse regulatory functions of astrocytes in different neural circuits as well as various aspects of complex behaviors. However, little is known about how astrocytes regulate different neuronal subpopulations that are linked to specific behavioral aspects within a single brain region. Here, we show that astrocytes in the medial prefrontal cortex (mPFC) encode anxiogenic environmental cues in freely behaving mice. Silencing mPFC astrocyte Ca


Phase 1/2 Trial Of Encorafenib, Cetuximab, And Nivolumab In Microsatellite Stable Brafv600e Metastatic Colorectal Cancer, Van K Morris, Christine M Parseghian, Vahid Bahrambeigi, Nourhan Abdelfattah, Lianchun Xiao, Anjali Agrawal, Kangyu Lin, Kanwal P S Raghav, Robert A Wolff, Arvind Dasari, Ryan W Huey, Bryan K Kee, Michael J Overman, Jason A Willis, Phat H Le, Michelle Escano, Yunyu C Baig, Kelsey Pan, David Menter, Alda L Tam, Wai C Foo, Li Shen, Hey Min Lee, Thomas D Gallup, Cori Margain, Dave Gallup, Kimal I Rajapakshe, Paola A Guerrero, Jing Wang, Ryan B Corcoran, Anirban Maitra, Kyuson Yun, Scott Kopetz Aug 2025

Phase 1/2 Trial Of Encorafenib, Cetuximab, And Nivolumab In Microsatellite Stable Brafv600e Metastatic Colorectal Cancer, Van K Morris, Christine M Parseghian, Vahid Bahrambeigi, Nourhan Abdelfattah, Lianchun Xiao, Anjali Agrawal, Kangyu Lin, Kanwal P S Raghav, Robert A Wolff, Arvind Dasari, Ryan W Huey, Bryan K Kee, Michael J Overman, Jason A Willis, Phat H Le, Michelle Escano, Yunyu C Baig, Kelsey Pan, David Menter, Alda L Tam, Wai C Foo, Li Shen, Hey Min Lee, Thomas D Gallup, Cori Margain, Dave Gallup, Kimal I Rajapakshe, Paola A Guerrero, Jing Wang, Ryan B Corcoran, Anirban Maitra, Kyuson Yun, Scott Kopetz

Faculty, Staff and Student Publications

The BRAF inhibitor encorafenib and anti-epidermal growth factor receptor (EGFR) antibody cetuximab modestly improve survival for patients with microsatellite stable (MSS) BRAFV600E metastatic colorectal cancer (mCRC), characterized by higher immune activation than MSS BRAFwild-type colorectal cancer (CRC). In this phase 1/2 study (NCT04017650) of 26 participants with MSS BRAFV600E mCRC who received encorafenib, cetuximab, and anti-PD-1 antibody nivolumab, we report an overall response rate of 50% (95% confidence interval [CI] 29–71) and median progression-free survival of 7.4 months (95% CI, 5.6–9.6). Transcriptomic profiling of pretreatment biopsies and extracellular vesicle RNA (evRNA) isolated from plasma show …


Human Interpretable Grammar Encodes Multicellular Systems Biology Models To Democratize Virtual Cell Laboratories, Jeanette A I Johnson, Daniel R Bergman, Heber L Rocha, David L Zhou, Eric Cramer, Ian C Mclean, Yoseph W Dance, Max Booth, Zachary Nicholas, Tamara Lopez-Vidal, Atul Deshpande, Randy Heiland, Elmar Bucher, Fatemeh Shojaeian, Matthew Dunworth, André Forjaz, Michael Getz, Inês Godet, Furkan Kurtoglu, Melissa Lyman, John Metzcar, Jacob T Mitchell, Andrew Raddatz, Jacobo Solorzano, Aneequa Sundus, Yafei Wang, David G Denardo, Andrew J Ewald, Daniele M Gilkes, Luciane T Kagohara, Ashley L Kiemen, Elizabeth D Thompson, Denis Wirtz, Laura D Wood, Pei-Hsun Wu, Neeha Zaidi, Lei Zheng, Jacquelyn W Zimmerman, Jude M Phillip, Elizabeth M Jaffee, Joe W Gray, Lisa M Coussens, Young Hwan Chang, Laura M Heiser, Genevieve L Stein-O'Brien, Elana J Fertig, Paul Macklin Aug 2025

Human Interpretable Grammar Encodes Multicellular Systems Biology Models To Democratize Virtual Cell Laboratories, Jeanette A I Johnson, Daniel R Bergman, Heber L Rocha, David L Zhou, Eric Cramer, Ian C Mclean, Yoseph W Dance, Max Booth, Zachary Nicholas, Tamara Lopez-Vidal, Atul Deshpande, Randy Heiland, Elmar Bucher, Fatemeh Shojaeian, Matthew Dunworth, André Forjaz, Michael Getz, Inês Godet, Furkan Kurtoglu, Melissa Lyman, John Metzcar, Jacob T Mitchell, Andrew Raddatz, Jacobo Solorzano, Aneequa Sundus, Yafei Wang, David G Denardo, Andrew J Ewald, Daniele M Gilkes, Luciane T Kagohara, Ashley L Kiemen, Elizabeth D Thompson, Denis Wirtz, Laura D Wood, Pei-Hsun Wu, Neeha Zaidi, Lei Zheng, Jacquelyn W Zimmerman, Jude M Phillip, Elizabeth M Jaffee, Joe W Gray, Lisa M Coussens, Young Hwan Chang, Laura M Heiser, Genevieve L Stein-O'Brien, Elana J Fertig, Paul Macklin

Faculty, Staff and Student Publications

Cells interact as dynamically evolving ecosystems. While recent single-cell and spatial multi-omics technologies quantify individual cell characteristics, predicting their evolution requires mathematical modeling. We propose a conceptual framework-a cell behavior hypothesis grammar-that uses natural language statements (cell rules) to create mathematical models. This enables systematic integration of biological knowledge and multi-omics data to generate in silico models, enabling virtual "thought experiments" that test and expand our understanding of multicellular systems and generate new testable hypotheses. This paper motivates and describes the grammar, offers a reference implementation, and demonstrates its use in developing both de novo mechanistic models and those informed …


Reducing Residential Landscape Water Use In Utah: Technologies And Strategies, Maya Cottam, Kendall Becker, Katlyn Stemmler, Shital Poudyal, Wesley Crump, Lewis Kogan, Scott Hotaling Aug 2025

Reducing Residential Landscape Water Use In Utah: Technologies And Strategies, Maya Cottam, Kendall Becker, Katlyn Stemmler, Shital Poudyal, Wesley Crump, Lewis Kogan, Scott Hotaling

All Current Publications

Water conservation is a critical issue in Utah, and several actions are already underway to help lower residential landscape water use. Strategies include smart irrigation controllers, efficient sprinkler bodies and nozzles, drip irrigation systems, soil amendments that increase water-holding capacity, and drought-tolerant grass cultivars for lawns. While additional conservation efforts will be necessary to reach sustainable water management, statewide adoption of current programs can help reduce water use and loss.


Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xliii. Lanzatus Fuscipalpis Sp. N. From Ethiopia (Buthidae), František Kovařík, Graeme Lowe Aug 2025

Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xliii. Lanzatus Fuscipalpis Sp. N. From Ethiopia (Buthidae), František Kovařík, Graeme Lowe

Euscorpius

The rare Horn of Africa buthid genus Lanzatus Kovařík, 2001, known only from Somalia and Somaliland, is recorded for the first time from Ethiopia. We describe a new species Lanzatus fuscipalpis sp. n. fully illustrated with color photographs showing its morphology, habitus, hemispermatophore, and collection sites.


Synergistic Cefiderocol-Containing Antibiotic Combinations Active Against Highly Drug-Resistant Acinetobacter Baumannii Patient Isolates With Diverse Resistance Mechanisms, Justin Halim, Andrew P. Keane, Jeannete Bouzo, Tope Aderibigbe, Jessica A. Chicola, Katie T. Nolan, Keertana Jonnalagadda, Jason X. Tran, Valerie J. Carabetta Aug 2025

Synergistic Cefiderocol-Containing Antibiotic Combinations Active Against Highly Drug-Resistant Acinetobacter Baumannii Patient Isolates With Diverse Resistance Mechanisms, Justin Halim, Andrew P. Keane, Jeannete Bouzo, Tope Aderibigbe, Jessica A. Chicola, Katie T. Nolan, Keertana Jonnalagadda, Jason X. Tran, Valerie J. Carabetta

Rowan-Virtua School of Osteopathic Medicine Departmental Research

BACKGROUND: Acinetobacter baumannii is a nosocomial pathogen known for rapidly developing resistance to nearly all antibiotics, including last-line agents. Cefiderocol, a novel siderophore cephalosporin, has shown in vitro activity against A. baumannii and is now used clinically, but resistance is emerging. Data on cefiderocol-based antibiotic combinations are limited.

OBJECTIVES: To evaluate the in vitro activity of cefiderocol alone and in combination with other antibiotics against XDR and PDR A. baumannii clinical isolates, and to explore resistance mechanisms underlying cefiderocol synergy.

METHODS: We tested 21 XDR/PDR clinical isolates and one NDM-1-producing strain using broth microdilution and checkerboard assays with cefiderocol and …


Menopause-Related Changes In Sleep And The Associations With Cardiometabolic Health: A Narrative Review, Joshua R. Sparks, Xuewen Wang Ph.D., Faha Aug 2025

Menopause-Related Changes In Sleep And The Associations With Cardiometabolic Health: A Narrative Review, Joshua R. Sparks, Xuewen Wang Ph.D., Faha

Faculty Publications

This narrative review examines the complex relationship between sleep changes during the menopausal transition and cardiometabolic risks. The most common complaint about sleep is increased awakenings during sleep. Other complaints include having trouble falling asleep, waking up too early, insufficient and non-restorative sleep, and overall poor quality. Sleep determined using objective methods also indicates that greater awakenings after sleep onset are associated with the period of menopausal transition. Polysomnography recordings suggest physiological hyperarousal during sleep. Changes in other sleep metrics, such as sleep latency and sleep duration, are less consistent, and some studies suggest they may not worsen during the …


Targeted Proteomic Analysis Identifies Acvrl1 As A Marker Of Cerebral Edema In Aneurysmal Subarachnoid Hemorrhage, Bosco Seong Kyu Yang, Lena O'Keefe, Sarah Hinds, Hua Chen, Athziry Paz, Jude Savarraj, Han-Gil Jeong, Moon-Ku Han, Aaron Gusdon, Xuefang Sophie Ren, Spiros Blackburn, Huimahn Alex Choi Aug 2025

Targeted Proteomic Analysis Identifies Acvrl1 As A Marker Of Cerebral Edema In Aneurysmal Subarachnoid Hemorrhage, Bosco Seong Kyu Yang, Lena O'Keefe, Sarah Hinds, Hua Chen, Athziry Paz, Jude Savarraj, Han-Gil Jeong, Moon-Ku Han, Aaron Gusdon, Xuefang Sophie Ren, Spiros Blackburn, Huimahn Alex Choi

Faculty, Staff and Student Publications

Cerebral edema (CE) is a major component of early brain injury from aneurysmal subarachnoid hemorrhage (SAH). Despite the utility of blood-based protein markers, biomarkers targeting cerebral edema have yet to be developed. We performed a targeted proteomic search analyzing 141 proteins in plasma samples taken from 80 adult patients within 48 hours after aneurysmal rupture to identify plasma biomarkers of cerebral edema. The protein expression profiles were analyzed for associations with a higher level of the subarachnoid hemorrhage early brain edema score measured in admission computed tomography scans. Five differentially expressed proteins-brorin, ectodysplasin A2 receptor, layilin, scavenger receptor class A …


First-Line Pd-1 +/- Ctla-4 Blockade In Patients With Deficient Mismatch Repair And/Or Microsatellite Instability-High Metastatic Colorectal Cancer, Vincenzo Nasca, Gabriele Tinè, Julien Taieb, Sara Lonardi, Ben Boursi, Ofer Margalit, Lisa Salvatore, Romain Cohen, Javier Ros, Margherita Ambrosini, Koen Zwart, Jeanine Roodhart, Priya Jayachandran, Michael J Overman, Maria Elena Elez, Chiara Cremolini, David Tougeron, Miriam Koopman, Thierry André, Rosalba Miceli, Filippo Pietrantonio Aug 2025

First-Line Pd-1 +/- Ctla-4 Blockade In Patients With Deficient Mismatch Repair And/Or Microsatellite Instability-High Metastatic Colorectal Cancer, Vincenzo Nasca, Gabriele Tinè, Julien Taieb, Sara Lonardi, Ben Boursi, Ofer Margalit, Lisa Salvatore, Romain Cohen, Javier Ros, Margherita Ambrosini, Koen Zwart, Jeanine Roodhart, Priya Jayachandran, Michael J Overman, Maria Elena Elez, Chiara Cremolini, David Tougeron, Miriam Koopman, Thierry André, Rosalba Miceli, Filippo Pietrantonio

Faculty, Staff and Student Publications

Background: Patients with deficient mismatch repair (dMMR) and/or microsatellite instability-high (MSI-H) metastatic colorectal cancer (mCRC) show marked sensitivity to immune checkpoint inhibitors (ICIs). Dual PD-1/CTLA-4 blockade with nivolumab and ipilimumab showed superior progression-free survival (PFS) over chemotherapy and anti-PD-1 monotherapy, but data on treatment-naïve patients is not available yet.

Methods: This international multicenter study included patients with dMMR/MSI-H mCRC receiving either chemotherapy with or without biologics, or anti-PD-1 monotherapy, or dual PD-1/CTLA-4 blockade as a first-line treatment. Data were adjusted using inverse probability of treatment weighting (IPTW) to account for baseline imbalances. IPTW-adjusted survival and subgroup analyses were conducted.

Results: …


Enhanced Meropenem Activity And Stability Following Load In Polyvinyl Alcohol Nanofiber Scaffolds With Sitagliptin As Quorum Sensing Inhibitor On Pseudomonas Aeruginosa, Samar A. Salim, Abdelrhman Mohsen, Mohamed Emara, Taghrid Elmahdy Aug 2025

Enhanced Meropenem Activity And Stability Following Load In Polyvinyl Alcohol Nanofiber Scaffolds With Sitagliptin As Quorum Sensing Inhibitor On Pseudomonas Aeruginosa, Samar A. Salim, Abdelrhman Mohsen, Mohamed Emara, Taghrid Elmahdy

Nanotechnology Research Centre

Background The increasing resistance of bacteria to conventional antibiotics poses a significant health challenge. Innovative strategies, such as combining antibiotics with agents like quorum sensing inhibitors (QSIs), have been developed to combat this issue. QSIs enhance antibiotic efficacy without inhibiting bacterial growth, minimizing the risk of resistance. Aims Evaluate the combined effect of Sitagliptin (STG) as a QSI with Meropenem (MER), fabricate drug-loaded Polyvinyl Alcohol (PVA) nanofibers, and investigate their antimicrobial activity against standard Pseudomonas aeruginosa (PAO1) and carbapenem-resistant P. aeruginosa (CRPA). Methods The combinatorial effect was assessed using a checkerboard assay. PVA/STG, PVA/MER, and PVA/STG/ MER nanofibers were fabricated …


Exposure To Zinc Oxide Nanoparticles Reveals A Death Resistance Mechanism In Dictyostelium Discoideum, Zoya Nadeem Faruqui Aug 2025

Exposure To Zinc Oxide Nanoparticles Reveals A Death Resistance Mechanism In Dictyostelium Discoideum, Zoya Nadeem Faruqui

Theses and Dissertations

Zinc oxide nanoparticles (ZnO NPs) are very versatile due to their multifunctional properties including unique physicochemical and antimicrobial characteristics. They are widely utilized across various fields such as biomedical, industrial fields, environmental remediation, and agriculture. Therefore, their cytotoxic effects on biological systems necessitate a deeper understanding of the cellular responses to nanoparticle exposure. This project primarily investigates the impact of ZnO NPs on the model organism Dictyostelium discoideum AX4 (social amoeba) which has not been examined before unlike a vast variety of organisms in the literature. The cytotoxic effects of ZnO NPs on Dictyostelium discoideum AX4 cells are compared with …


Emotional Development In Infancy, Claire Sanford, Samantha Gott Aug 2025

Emotional Development In Infancy, Claire Sanford, Samantha Gott

Florida Atlantic Undergraduate Research Journal

Developmental science has documented that infants’ emotional reactions are shaped by individual dispositions and their environment. This study investigated fear responses along with patterns of brain development in infants 6 to 10 months. Nine infant-mother dyads participated, with each infant observed twice (18 visits). An electroencephalogram (EEG) was used to analyze brain activity during resting-state and fear-eliciting conditions. Infant fear vocalizations were evaluated and coded during two conditions, i.e., an unfamiliar object (an electronic toy-spider), and an unfamiliar adult approaching. Results indicated infants’ fear vocalizations were stimuli-specific, with more fear expressed towards approaching strangers than the novel object. Findings also …


The Relationship Between Self-Reported And Observer-Rated Maternal Anxiety During Mother-Infant Interactions, Annalisa Tran, Jacqueline Hammack Aug 2025

The Relationship Between Self-Reported And Observer-Rated Maternal Anxiety During Mother-Infant Interactions, Annalisa Tran, Jacqueline Hammack

Florida Atlantic Undergraduate Research Journal

Research pertaining to maternal anxiety and mother-infant interactions is a rapidly growing field. The purpose of this study is to investigate the relationship between self-reported maternal anxiety ratings and observer-rated maternal anxiety scores. Thirty-nine motherinfant dyads participated in a four-minute free-play session via Zoom. The Parent Anxiety measure from the Coding Interactive Behavior scale was used to measure observed maternal anxiety. The General Anxiety Disorder-7 scale was used to measure self-reported maternal anxiety. No significant association was found between self-reported maternal anxiety and observed maternal anxiety. An exploratory analysis was conducted to compare self-reported maternal anxiety and observed maternal sensitivity. …


Use Of A Novel Plant Essential Oil-Based Insecticide For Insect Control In Household Gardens And Lawns, Mia Michnik, Alysa Suissa, Liah Brussolo Cremona, Annalise Wellman, Nicholas Nifakos, Alexander Spanoudis, John M. Harlin Aug 2025

Use Of A Novel Plant Essential Oil-Based Insecticide For Insect Control In Household Gardens And Lawns, Mia Michnik, Alysa Suissa, Liah Brussolo Cremona, Annalise Wellman, Nicholas Nifakos, Alexander Spanoudis, John M. Harlin

Florida Atlantic Undergraduate Research Journal

Insecticide use has increased as population and agricultural demand for crops grows. Commercial insecticides contain active ingredients that are often harmful to humans and the environment. A viable alternative to this concern is developing and using insecticides with low toxicity and minimum risk to the environment. In this study, we sought to empirically assess the effectiveness of an insecticide based entirely on plant essential oil active ingredients, which contain complex secondary metabolites. Our results show that a concoction of several plant essential oils was effective in killing a wide range of household garden insect species and bedbugs, encompassing five orders …


Mechanism Of Unconventional Il-33 Release In Airway Disease, Omar Osorio Aug 2025

Mechanism Of Unconventional Il-33 Release In Airway Disease, Omar Osorio

Arts & Sciences Graduate Student Theses and Dissertations

The alarmin cytokine IL-33 is a strong inducer of type two inflammation and has been implicated in various chronic lung diseases. Although much work has been done to understand the inflammatory effects of extracellular IL-33, there is still a knowledge gap in understanding how this cytokine is secreted by airway epithelial cells in steady-state conditions. In the work laid out in this document, a COPD-disease associated isoform of IL-33, that has exons 3 and 4 (IL-3334) spliced out and is tonically secreted at baseline conditions. This IL-33 isoform is secreted from airway epithelial cells alongside, or as part of, extracellular …


Plant-Microbe Interactions Across Scales: Diversity, Disease, And Stress In Herbaceous Plant Communities, Philippa Tanford Aug 2025

Plant-Microbe Interactions Across Scales: Diversity, Disease, And Stress In Herbaceous Plant Communities, Philippa Tanford

Arts & Sciences Graduate Student Theses and Dissertations

Plants interact consequentially with microbes spanning mutualism to pathogenicity, with broader effects on large-scale plant community structure. These plant communties, in turn, shape below and aboveground microbial communities through a variety of mechanisms. However, plant diversity-microbial diversity relationships remain broadly inconsistent across environments and among different plant and microbial assemblages. In my dissertation, I work to bridge some of these gaps in plant-microbial ecology in three experimental chapters assessing relationships between plant diversity and microbial diversity, including the influence of belowground-aboveground microbiome interactions, the influence of drought stress, and incorporating different spatial and experimental scales. First, I explore the microbial …


Early Detection Of Oak Wilt Using Unmanned Aerial Vehicles (Uav) & Computer Vision, Muttaki I. Bismoy Aug 2025

Early Detection Of Oak Wilt Using Unmanned Aerial Vehicles (Uav) & Computer Vision, Muttaki I. Bismoy

Masters Theses

Forests are critical ecosystems, delivering services such as biodiversity conservation, climate regulation, timber production, and recreation. However, they face increasing threats from pathogens like Bretziella fagacearum, which causes Oak Wilt, a lethal disease that disrupts water transport in oak trees, leading to canopy dieback and eventual death. Traditional detection methods rely on manual ground surveys, which are labor-intensive, time-consuming, and prone to error, particularly in early disease stages.

This research presents an automated, scalable, high-precision Oak Wilt detection system using Unmanned Aerial Vehicles (UAVs) combined with deep learning-based computer vision. Expanding on earlier work with a lightweight CNN achieving an …


Genomic Editing Of A Pathogenic Sequence Variant In Acta2 Rescues Multisystemic Smooth Muscle Dysfunction Syndrome In Mice, Qianqian Ding, Peiheng Gan, Zhisheng Xu, Hui Li, Lei Guo, Camryn Macdonald, Wei Tan, Efrain Sanchez-Ortiz, John R Mcanally, Yu Zhang, Dileep Karri, Lin Xu, Ning Liu, Eric N Olson Aug 2025

Genomic Editing Of A Pathogenic Sequence Variant In Acta2 Rescues Multisystemic Smooth Muscle Dysfunction Syndrome In Mice, Qianqian Ding, Peiheng Gan, Zhisheng Xu, Hui Li, Lei Guo, Camryn Macdonald, Wei Tan, Efrain Sanchez-Ortiz, John R Mcanally, Yu Zhang, Dileep Karri, Lin Xu, Ning Liu, Eric N Olson

Faculty, Staff and Student Publications

Background: Vascular smooth muscle cells (SMCs), the predominant cell type in the aortic wall, play a crucial role in maintaining aortic integrity, blood pressure, and cardiovascular function. Vascular SMC contractility and function depend on ACTA2 (smooth muscle α-actin 2). The pathogenic variant ACTA2 c.536G>A (p.R179H) causes multisystemic smooth muscle dysfunction syndrome, a severe disorder marked by widespread smooth muscle abnormalities, resulting in life-threatening aortic disease and high risk of early death from aneurysms or stroke. No effective treatments exist for multisystemic smooth muscle dysfunction syndrome.

Methods: To develop a comprehensive therapy for multisystemic smooth muscle dysfunction syndrome, we used …


Lipid-Laden Microglia: Characterization And Roles In Diseases, Jiani Xing, Takese Mckenzie, Jian Hu Aug 2025

Lipid-Laden Microglia: Characterization And Roles In Diseases, Jiani Xing, Takese Mckenzie, Jian Hu

Faculty, Staff and Student Publications

Microglia are resident phagocytes of the central nervous system that play an essential role in brain development and homeostasis. When the intracellular lipid content exceeds the metabolic capacity of microglia, lipid droplets accumulate, giving rise to a distinct population termed lipid-laden microglia (LLMs). LLMs have been implicated in various neuroinflammatory and neurodegenerative diseases, functioning as both regulators/indicators of inflammation and potential therapeutic targets. This review summarizes the current research on LLMs, focusing on disease-specific regulators and functions, protective roles, interactions with neighboring cells, and advances in diagnostic and analytical tools. We also discuss the blurred distinction between LLMs and macrophages, …


Optimizing Motion Management And Baseline Shifts In Magnetic Resonance-Guided Spine Stereotactic Body Radiation Therapy, Yao Ding, Travis C Salzillo, Debra N Yeboa, Martin C Tom, Zhiheng Wang, Parmeswaran Diagaradjane, Ergys Subashi, Jinzhong Yang, Todd Swanson, Thomas Beckham, Chenyang Wang, Amol J Ghia, Tina Briere, Jihong Wang, Fabienne Lathuilière, Sneha Cloake, Eun Young Han Aug 2025

Optimizing Motion Management And Baseline Shifts In Magnetic Resonance-Guided Spine Stereotactic Body Radiation Therapy, Yao Ding, Travis C Salzillo, Debra N Yeboa, Martin C Tom, Zhiheng Wang, Parmeswaran Diagaradjane, Ergys Subashi, Jinzhong Yang, Todd Swanson, Thomas Beckham, Chenyang Wang, Amol J Ghia, Tina Briere, Jihong Wang, Fabienne Lathuilière, Sneha Cloake, Eun Young Han

Faculty, Staff and Student Publications

BACKGROUND: Stereotactic body radiation therapy (SBRT) has proven effective in controlling spinal lesions with minimal toxicity, primarily due to its ability to limit spinal cord dose. Recent advances in MR-linac (MRL) technology offer superior spinal cord visualization and real-time gating, which can facilitate dose escalation in spinal tumor treatment while maintaining safety.

PURPOSE: This study aimed to optimize motion management for spine SBRT on an MRL by analyzing patient-specific motion dynamics and evaluating the most effective registration structures. We hypothesized that baseline shifts (BLS) would improve delivery efficiency while maintaining spinal cord dose constraints. The goal was to establish displacement …


A Brief History Of Circadian Time In The Heart, Martin E Young, Vanya Khanna, Mallory Metcalfe, Niruththaan Rameshkumar, Sarah Harington, Leo H Li, Janan Shoja Doost, Heinrich Taegtmeyer, Tami A Martino Aug 2025

A Brief History Of Circadian Time In The Heart, Martin E Young, Vanya Khanna, Mallory Metcalfe, Niruththaan Rameshkumar, Sarah Harington, Leo H Li, Janan Shoja Doost, Heinrich Taegtmeyer, Tami A Martino

Faculty, Staff and Student Publications

This review tracks the discovery of circadian biology in cardiovascular science, starting with early clinical observations of daily changes in heart rate, blood pressure, and cardiovascular events. These patterns suggested that time of day matters, but it was not until the past two decades that the mechanisms and knowledge translation of these rhythms were uncovered. We describe the heart's intrinsic circadian properties and importantly how this leads to regulation of cardiac gene and protein expression, neuroendocrine and vascular rhythms, metabolism, cellular electrophysiology, and cell signaling pathways. Next, we explore emerging themes, including the impact of circadian timing on ischemic injury, …