Digital Commons Network^™

Assessing Mangrove Ecosystem Health And Identifying Optimal Planting Regions Using Remote Sensing And Gis In The Uae, Imen Ben Salem, A. Karthi, Yousef Nazzal

All Works

Mangrove forests play a critical role in carbon sequestration, biodiversity preservation, and coastal resilience, making their conservation and restoration essential in climate change mitigation. This study uses traditional field evaluations and remote sensing and geoinformatics (GIS) methods to examine how mangrove ecosystems in the United Arab Emirates (UAE) have changed over time and space. We used Landsat satellite data from 2001 to 2024 and a set of vegetation indices, including SMRI, NDVI, GNDVI, EVI, and NDCI, to examine spatial patterns in biomass distribution, vegetation density, and overall ecosystem health. CO2 sequestration is a bit more climate-impact resilient. Even though the …

A Bovine Cell Line Resistant To Japanese Encephalitis Virus Entry But Permissive To Post-Entry Replication, Sang-Im Yun, Young-Min Lee

Animal, Dairy, and Veterinary Science Faculty Publications

Japanese encephalitis virus (JEV) is a mosquito-borne zoonotic orthoflavivirus that poses a significant global health threat. It causes severe neuroinflammatory disease in humans and reproductive failure in swine. Because of the broad host range and cell tropism of JEV, identifying animal cell lines resistant to infection has been a persistent challenge. In this study, we demonstrate that Madin–Darby bovine kidney (MDBK) cells are resistant to JEV infection yet remain fully permissive to viral replication when transfected with viral genomic RNA. Using immunoblotting, immunofluorescence, and flow cytometry, we show that MDBK cells, unlike the highly susceptible baby hamster kidney (BHK-21) cells …

Mechanical Performance Evaluation Of Natural Composites Recycled Hemp Rice Bag Reinforced With And Without Silicon Carbide Particles, Gaber A. Elawadi, A. S. Fayed

Mansoura Engineering Journal

Significant progress has been made in the development of natural fiber-reinforced composite materials, owing to their potential to enhance mechanical properties while offering a greener and more sustainable alternative to traditional materials. These materials combine superior ecological benefits with enhanced mechanical performance. This study examines how recycled hemp fiber bags, including recycled hemp fibers obtained from rice hemp fiber bags, affect the mechanical characteristics of unreinforced and reinforced composites. Four composite systems were fabricated and tested: (1) HFR (randomly chipped recycled hemp fiber bags–epoxy composite), (2) HFB (continuous recycled hemp fiber bag–epoxy composite), (3) HFR SiC (randomly chipped recycled hemp …

Assessing Predoctoral Dental Student Interest In Nutrition Education: A Study Across Two Dental Schools, Nadine M. Tassabehji, Xiaoyuan Han, Parvati Iyer Dr., Michelle Brady, Matthew Finkelman, Shafa Nathani, Anna Garrison, Annie Han

Pacific Journal of Health

The mouth is a mirror of overall health. Dentists have a vital role in the diagnosis of oral diseases, prevention, for health promotion. The purposes of our exploratory study were to investigate dental students’ attitudes and perceptions regarding nutrition education and to propose a curriculum checklist for integrating nutrition content into dental curricula.

An optional exploratory survey was distributed at two North American urban dental schools to 351 students, to compare student perspectives regarding implementation of nutrition education. The results were analyzed as a step to improve nutrition education in dental curricula. A validated stepwise checklist was developed to guide …

Predicting Male Flowering Time In Maize Using Machine Learning Technique, Dipok Deb

Data Science and Data Mining

This study compares three machine learning approaches—Elastic Net, Principal Component Regression (PCR), and Partial Least Squares (PLS)—for variable selection and prediction within a high-dimensional Maize-GWAS framework. The goal was to accurately predict the complex polygenic trait of time to male flowering while managing the challenges of numerous, highly correlated genetic markers. The ENET model, which combines l1 and l2 penalties, delivered the highest predictive accuracy and successfully identified a select subset of the most influential genetic variants. In contrast, PCR and PLS, both utilizing dimension reduction, offered a significant advantage in computational speed and model stability. The findings confirm that …

Zonation-Dependent Distribution Of Microplastic Occurrence In Patella Caerulea From Mersin Coast, Türkiye, Ezgi̇ Deği̇rmenci̇, Nuray Çi̇ftçi̇, Sedat Gündoğdu, Deni̇z Ayas

Turkish Journal of Zoology

Increasing plastic pollution has become a critical environmental issue, leading to  challenges in management. Specifically, microplastics (MPs) are of particular concern  because they can persist in aquatic ecosystems and adversely affect marine  organisms. The objective of this study was to assess the occurrence of MPs  in the soft tissues of Patella caerulea (Linnaeus, 1758) collected from the Mersin  Viranşehir coastal area. As no specimens were found in the supralittoral zone, the  decision was taken to conduct sampling only in the mediolittoral and infralittoral  zones. The total sampling area was 24 m2 divided into three 4-m2 plots in each zone.  A …

Blinking Without Eyelids: First Video-Documented Evidence Of A Blink-Like Reflex In Ophisops Elegans (Reptilia: Lacertidae), Turan Meri̇ç Çelebi̇, Yusuf Çeli̇kaği, Tuana Kinay, Arda Cem Kuyucu, Muammer Kurnaz, Mehmet Kürşat Şahi̇n

Turkish Journal of Zoology

Eyelids play a crucial role in protecting the eyes of vertebrates; however, certain  reptile species, such as Ophisops elegans, completely lack movable eyelids. In this  study, we present the first video-documented evidence of a blink-like reflex in O.  elegans, captured through endoscopic field observations and corroborated by laboratory video analysis. The observed movement consisted of a brief convex  deformation of the ocular surface, lasting approximately 0.3 s and resembling a blink  despite the presence of a fixed transparent brille. This behavior was observed once in  the field and twice under controlled laboratory conditions. We propose that O.  elegans may employ …

Growth Patterns And The Shift From Predominantly Female To Balanced Sex Ratios In Carassius Gibelio (Bloch, 1782): A Comparative Study Of Lotic And Lentic Populations In  Serbia, Tamara Mitić, Jelena Čanak Atlagić, Ana Marić, Jelena Stanković Ristić, Nikola Marinković, Momir Paunović, Predrag Simonović

Turkish Journal of Zoology

Since its introduction into Serbian watercourses, the invasive Carassius gibelio (Bloch, 1782) (Prussian carp) has spread rapidly. This paper provides an up-to-date overview of the sex ratio, age structure, and growth parameters in Serbian  populations of this fish and describes how growth varies in two contrasting  ecosystems: lotic and lentic. A total of 133 individuals were sampled. The individuals  from lentic habitats were longer on average, with no significant differences in average  weight or age between the two ecosystem types. There was a difference in  the sex ratio between the ecosystems, as indicated by a higher proportion of males in …

Weather Conditions Associated With Citrus Canker Incidence Caused By Aw Strain In The Lower Rio Grande Valley Of South Texas, Amit Sharma, Teresa Patricia Feria-Arroyo, George Yanev, Madhurababu Kunta

School of Integrative Biological & Chemical Sciences Faculty Publications

Citrus canker, caused by bacterium Xanthomonas citri subsp. citri (Xcc), affects the citrus industry by making the fruit unmarketable due to unsightly lesions on the fruit. Citrus canker caused by a relatively new AWstrain of Xcc was reported on the citrus trees in the residential areas of the Lower Rio Grande Valley (LRGV) of South Texas. Xcc AW has a limited host range, predominantly affecting limes and a few other citrus species. Previous work has reported prevailing environmental conditions that influence the incidence and spread of the citrus canker caused by the Asiatic A strain. However, no information is available …

Habitat Diversity Or Altitudinal Gradient? Which Factor Better Explains Ground Beetle (Coleoptera: Carabidae) Biodiversity? A Case Study From Davraz Mountain (Isparta, Türkiye), Ebru Ceren Fi̇dan, Ali̇ Gök

Turkish Journal of Zoology

Ground beetle (Carabidae) species diversity and spatial distribution were surveyed  across five habitat types along an elevational gradient on Davraz Mountain, a  biogeographical transition area in southwestern Türkiye. The analyses showed that  habitat heterogeneity—particularly soil moisture and texture—exerts a stronger  influence on carabid diversity than elevation. Sørensen’s and Jaccard similarity  indices showed strong faunal overlap between some sampling areas, while  multivariate principal components and canonical correspondence analyses verified  distinct environmental gradients influencing community structure. Diversity indices  indicated varying levels of species richness and evenness across sampling areas.  The data highlight the importance of fine-scaled habitat features in driving ground  beetle …

Dna Metabarcoding Approach To The Determination Of The Diet Spectrum Of The Common  Sunbleak Leucaspius Delineatus (Heckel, 1843), Elena V. Dzyuba, Yurij S. Bukin, Bakhtiar E. Bogdanov, Yulia P. Sapozhnikova, Natalia N. Denikina

Turkish Journal of Zoology

The common sunbleak (Leucaspius delineatus) is an invasive fish found in Siberian  water bodies, the trophic interactions and impact on local ecosystems of which  remain poorly understood. Traditional diet analyses are limited by the mechanical  damage to the prey. For the present study, therefore, we employed DNA  metabarcoding of the cytochrome c oxidase I (cox1) gene to analyze the digestive  tract contents of the common sunbleak obtained from Irkutsk Reservoir. Our analysis  revealed 53 operational taxonomic units (OTUs), with sequences of amphibiotic  insects (58.66%) and fish (34.10%) being the most prevalent. A significant proportion  of the fish DNA, including sequences …

Distribution Of Mussels In Two Intermittent Upland Streams Of The Arkansas Valley Ecoregion, A. A. Brady, K. B. Hecke, S. A. Drake, Z. R. Crain, K. Moles

Journal of the Arkansas Academy of Science

Freshwater mussels are facing an increasing need for conservation due to their declining populations. More data is needed on mussel distributions, especially in tributaries of large rivers to properly conserve and restore populations. Big Shoal Creek and Little Shoal Creek are two upland-tributaries of the Arkansas River (Lake Dardanelle) in which no records exist for freshwater mussel populations. We addressed this knowledge gap by sampling a total of 9 sites in Little Shoal Creek and 18 sites in Big Shoal Creek to determine the abundance and distribution of mussels in these streams. Mussels were sampled using a timed-search approach. A …

High Levels Of Circulating Mir-19a-3p In Patients With Metastatic Her2 + Breast Cancer Are Associated With A Favorable Prognosis And Anti-Tumor Immune Responses, Evan N Cohen, Hui Gao, Sanda Tin, Qiong Wu, Cristina Ivan, Naoto T Ueno, Wendy A Woodward, James M Reuben, Simone Anfossi

Faculty, Staff and Student Publications

Background: Trastuzumab, combined with chemotherapy, is the current standard treatment for both metastatic and early-stage HER2-positive (HER2 +) breast cancer. One of the mechanisms of action of trastuzumab is antibody-dependent cellular cytotoxicity (ADCC), which involves engaging FcγRIIIA (CD16) on natural killer (NK) cells. A competent immune system and properly functioning NK cells are crucial for effective ADCC, as they can influence favorable clinical outcomes. Resistance to trastuzumab often develops after about one year. We previously reported that elevated levels of miR-19a-3p in the serum of patients with metastatic HER2 + breast cancer treated with trastuzumab were associated with a favorable …

An Antioxidant Cocktail Of Tert-Butylhydroquinone And A Manganese Porphyrin Induces Toxic Levels Of Oxidative Stress In Cancer Cells, Sandra Tamarin, Hannah Jung, Joseph Lamorte, Laura Biesterveld, Gabriel Piñero, Grace Turchetta, Molly Myers, Rebecca Oberley-Deegan, Aimee Eggler

Student Papers, Posters & Projects

Despite significant advancement in cancer treatments, therapies with minimal toxicity to healthy cells are still limited. One targetable weakness of cancer cells is their sensitivity to oxidative stress. We find that the combination of two antioxidants—the common food additive tert-butylhydroquinone (tBHQ) and a manganese porphyrin in clinical trials, MnTnBuOE-2-PyP5+ (MnBuOE)—increases oxidative stress and causes apoptotic death in several cancer cell lines, but not in mouse primary fibroblasts. Investigating the mechanism of cell death, MnBuOE is observed to catalyze the oxidation of tBHQ, producing the electrophilic quinone tert-butylquinone (tBQ). A critical role for tBQ and its electrophilic character was revealed with …

Erratum To “The Effect Of Using Cidr And Various Doses Of Pmsg As Well As Genistein On The Reproductive Characteristics Of Palu Fat-Tailed Sheep”, Mardiah Mangun, Suyadi Suyadi, Muhammad Nur Ihsan, Marjuki Marjuki

Jurnal Ilmu Ternak Universitas Padjadjaran

This is a correction for

DOI: https://doi.org/10.24198/jit.v22i1.38035

In the originally published version of this article, the citation in column 1, page 15, line 11 from the bottom, … Suharto et al. (2008), does not appear in the References. Furthermore, the following references:

Jainudeen, M., & Hafez, E. (1987). Reproductive failure in female. In E. Hafez (Ed.), Reproduction in Farm Animal (7th ed.). Lea and Febiger.

and

Jainudeen, M. R., & Hafez, E. S. E. (1987). Gestation, Prenatal Physiology, and Parturition. In E. Hafez (Ed.), Reproduction in Farm Animal (7th ed.). Lea and Febiger.

do not include letter codes (a …

Bioaugmentation Of Microorganisms On The Decomposition Of A Mixture Of Dairy Cattle Manure And Chicken Excreta As Solid Organic Fertilizer, Kirana Riyanto, Roni Ridwan, Ellin Harlia

Jurnal Ilmu Ternak Universitas Padjadjaran

Solid organic fertilizer efficiently utilizes livestock waste, with laying hen excreta providing the highest nitrogen (N) content among livestock manure. Combining laying hen excreta with dairy cow manure and fiber sources as a fertilizer base is expected to meet KEPMENTAN No. 261 of 2019 standards. To maintain essential nutrients (N, P, K), the fertilizer is enriched with Pseudomonas sp., Herbasirillum sp., and Streptomyces sp. This study aims to analyzing the effect of chicken excreta on macronutrient content (N, P, K), carbon (C) levels, C/N ratio, coliform presence, and microbial viability. The experiment followed a completely randomized design (CRD) with …

Effect Of Corn Flour Addition On The Physical And Chemical Quality Of Wedelia Trilobata (L) Hitchc Weed Silage For Ruminant Livestock Feed, Ajat Sudrajat, Retno Galuh Syaharani, Nur Rasminati, Wahyu Candra Saputra, Niken Astuti, Raden Febrianto Christi, Fazhana Ismail

Jurnal Ilmu Ternak Universitas Padjadjaran

Research on the physical and chemical quality of weed silage with the addition of corn flour has been carried out. The research was carried out on November 30, 2024 – February 25, 2025 at the Animal Nutrition Laboratory of the Animal Husbandry Study Program, Mercu Buana Yogyakarta University and the Chem-Mix Bantul laboratory, Yogyakarta. The study used an experimental method with a complete random design (RAL) in a unidirectional pattern using 4 treatments, namely P0 (no treatment), P1 (1% corn flour), P2 (3% corn flour) and P3 (5% corn flour), then each treatment was replicated three times. In each treatment, …

Effects Of 1,25-Dihydroxyvitamin D3 Supplementation On Performance Of 60-Week-Old Layers, Edgen Geñoso, Listya Purnamasari, Joseph Olarve, Joseph Dela Cruz

Jurnal Ilmu Ternak Universitas Padjadjaran

The effects of 1,25 dihydroxyvitamin D3 supplementation on egg production, percent hen house, percent hen day, mortality rate and egg size on 60-week-old laying hens were studied. There were 5 treatment groups of layer hens where Treatment 1 served as control supplemented with commercial feed without vitamin D3, Treatment 2 as positive control supplemented with commercial feed and vitamin D3 HyD, which was already used by the poultry farm, Treatment 3 supplemented with commercial feed and Active D at an inclusion rate of 75 ppm per ton of feeds, Treatment 4 supplemented with commercial feed and Active D at an …

Fermentabilitas Dan Kecernaan Ransum Domba Yang Mengandung Kulit Buah Pisang Muli (In Vitro), Iman Hernaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Kulit buah pisang Muli memiliki potensi sebagai bahan pakan sumber serat pengganti rumput lapang, namun saat ini penggunaannya masih terbatas. Penelitian bertujuan untuk mempelajari penggunaan kulit buah pisang Muli dalam ransum terhadap fermentabilitas dan kecernaan (in vitro). Penelitian menggunakan rancangan acak lengkap dengan 4 perlakuan ransum yang mengandung 10, 20, 30, dan 40% kulit buah pisang Muli. Data yang terkumpul dianalisis dengan menggunakan Uji Duncan. Penelitian menghasilkan data yang memberi petunjuk adanya pengaruh nyata (P3yang terendah yaitu berturut-turut sebesar 161,5 mM, 66,72%, 66,15% dan 1,94 mM. Hasil penelitian menyimpulkan bahwa penggunaan kulit buah pisang Muli dapat sebanyak 40% dapat digunakan …

Pengaruh Konsentrasi Asam Sulfat (H2so4) Terhadap Rendemen, Mutu Fisik, Dan Mutu Kimia Gelatin Dari Limbah Shaving Kulit Kambing Pickel, Trianing Anggaeni

Jurnal Ilmu Ternak Universitas Padjadjaran

Salah satu alternatif penanganan limbah padat industri pengolahan kulit yang ekonomis dan bermanfaat adalah melalui pembuatan gelatin. Penelitian pembuatan gelatin dari limbah shaving kulit kambing pikel dengan konsentrasi asam sulfat sebagai bahan perencdam telah dilakukan dengan tujuan mengetahui pengaruh konsentrasi asam sulfat terhadap mutu kimia dan mendapatkan tingkat persentase konsentrasi asam sulfat terbaik. Penelitian dilakukan secara eksperimen menggunakan Rancangan Acak Lengkap dengan perlakuan 5 tingkat perendaman asam sulfat yaitu 1%, 2%, 3%, 4%, dan 5%. Setiap perlakuan diulang sebanyak 4 kali. Variabel yang diukur adalah rendemen, kekuatan gel, viskositas, kadar air, pH, dan kadar sulfit gelatin. Penggunaan asam sulfat konsentrasi …

Human-Mediated Dispersal And Breeding Reshape Global Genomic Patterns In Black Soldier Flies, Peter Muchina, Johnson Kinyua, Fathiya Khamis, Chrysantus M. Tanga, Rawlynce Bett, Geoffrey Ssepuuya, Dorothy Nakimbugwe, Mikkel-Holger S. Sinding, Grum Gebreyesus, Goutam Sahana, Zexi Cai

All Peer-Reviewed Publications

Human activities, either intentional or unintentional, have significantly influenced the global distribution and genetic composition of many species. The black soldier fly (Hermetia illucens; BSF) is a species native to North America that has rapidly gained commercial importance due to its bioconversion efficiency, upcycling organic waste into higher-value products. Through human-mediated dispersal associated with trade and insect farming, BSF has been introduced widely across the Old World, including Africa, where both wild and captive populations are now established. Despite its expanding global distribution, the demographic history and genomic consequences of these introductions remain poorly understood, particularly in Africa. This work …

Evaluasi Potensi Pakan Serat Dan Daya Dukung Untuk Pengembangan Ternak Ruminansia Di Wilayah Kabupaten Subang (Evaluation Of Forage And Agricultural Waste Potencies, Its Carring Capacity To Ruminant Developments In Subang), U Hidayat Tanuwiria, A. Budiman, B Ayuningsih

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini dilaksanakan di Kabupaten Subang. Penelitian bertujuan untuk mengetahui

potensi rumput dan pakan serat limbah asal tanaman pangan serta daya dukungnya untuk pengembangan ternak ruminansia di wilayah Kabupaten Subang. Penelitian ini bersifat eksploratif melalui analisis data primer dan sekunder. Data sekunder berupa data tataguna lahan, populasi ternak, produksi dan luas lahan pertanian. Data tersebut diperoleh dari Badan Pusat Statistik Kabupaten Subang. Hasil penelitian adalah sebagai berikut : (1) Potensi pakan di

Kabupaten Subang adalah 390.282 ton BK/tahun yang terdiri atas ton 61.585 BK.tahun-1 asal rumput dan 328.697 ton BK.tahun-1 asal limbah tanaman pangan. (2) Daya dukung pakan terhadap populasi …

Pengaruh Lama Pemeraman Dengan Nira Lontar Terhadap Perubahan Fraksi Serat Kulit Kopi Kering (The Effect Of Various Long Ripening In The Palm Juice On Fibre Of Dried Coffee Pulp), Serilus Bhia Tai, Redempta Wea, Agustinus Paga, Bernadete B. Koten

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini telah dilaksanakan di Laboratorium Umum Politeknik Pertanian Negeri Kupang.

Penelitian mulai dari Bulan November 2014–Januari 2015. Penelitian ini bertujuan untuk mengkaji pengaruh berbagai lama pemeraman dengan nira lontar terhadap fraksi serat kulit kopi kering, dirancang dengan metode rancangan acak lengkap (RAL), dengan 4 perlakuan dan 5 ulangan. Perlakuan tersebut adalah kulit kopi + nira lontar yang tidak diperam (K0), kopi + nira lontar yang diperam selama 6 hari (K1), diperam selama 12 hari (K2), diperam selama 18 hari (K3). Variabel yang diamati ialah kadar fraksi serat berupa Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), lignin, selulosa, dan …

Performa Domba Lokal Betina Dewasa Pada Berbagai Variasi Lamanya Penggembalaan Di Daerah Irigasi Rentang Kabupaten Majalengka ( Local Ewes Performance At Various Variation Of Length Grazing In Rentang Irigation Area Of Kabupaten Majalengka), Rachmat Somanjaya, Denie Heriyadi, Iman Hernaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian mengenai “Performa Domba Lokal Betina Dewasa pada Berbagai Variasi Lamanya Penggembalaan di Daerah Irigasi Rentang Kabupaten Majalengka”, telah dilaksanakan sejak Tanggal 25 Maret sampai 30 Juli 2015. Penelitian ini bertujuan untuk mengukur lamanya waktu penggembalaan optimum terhadap performa domba lokal betina dewasa yang digembalakan di Daerah Irigasi Rentang Kecamatan Jatitujuh Kabupaten Majalengka. Sampel Domba Lokal betina dewasa dalam penelitian ini adalah sebanyak 62 ekor yang tersebar pada variasi penggembalaan 6 jam 22 ekor. Metode penelitian yang digunakan adalah survey dan observasi. Data yang diperoleh dianalisis secara deskriptif, untuk mengetahui perbedaan rata-rata performa domba diuji dengan Analisys of Varian ( …

The Interactive Relationship Between Fusobacterium Necrophorum, Bacteroides Pyogenes, And Porphyromonas Levii In Driving Inflammatory Uterine Disease, Dianjun Cao, Mehwish Ammad, Bindu Subhadra, Mrunmaya Kumar Panda, Thomas J. Inzana, Federico Cunha, Segundo Casaro, Kristi L. Jones, Rosabel Ramirez-Hernandez, John J. Bromfield, Klibs N. A. Galvão, Soo Jin Jeon

Faculty Publications - Biological Sciences

Background

Bovine metritis is associated with uterine microbiota dysbiosis, characterized by the proliferation of Gram-negative anaerobes, including Fusobacterium necrophorum, Bacteroides pyogenes, and Porphyromonas levii. However, the mechanisms by which these opportunistic pathogens proliferate together and contribute to disease remain unclear. This study aimed to identify the interactions among these bacteria and to elucidate their role in the development of metritis.

Methods

F. necrophorum, B. pyogenes, and P. levii were isolated from the uteri of cows with metritis and cultured anaerobically in chopped meat carbohydrate broth. Bacterial growth, coaggregation, biofilm formation, endotoxin production, protease activity, adhesion to bovine endometrial epithelial (BEND) …

Fuzzy Pi Controller For Frequency Control Of A Diesel-Pv-Battery-Based Islanded Ac Microgrid, M. S. Elborlsy, Ramadan M. Mostafa, Hossam E. Keshta, Mohamed A. Ghalib

Mansoura Engineering Journal

Effective management of modern electrical grids requires intelligent and adaptable control mechanisms to effectively balance power supply and demand, particularly in times of significant disturbances. Microgrids predominantly harness renewable energy sources (RES), which are inherently variable, for electricity generation. However, due to these fluctuations, conventional control systems often struggle to optimize performance under diverse operational conditions. This study addresses the need for improved frequency regulation in isolated AC microgrids (MGs) by proposing a fuzzy PI (FPI) controller capable of dynamically adjusting control strategies to accommodate disturbances such as three-phase faults, sudden changes in load, and variations in solar irradiance. A …

Agronomic, Nitrogen Use, And Economic Efficiency Of Winter Wheat (Triticum Aestivum L.) Under Variable-Rate Versus Uniform Nitrogen Fertilization, Judith Ntow Oppong, Clement Elumpe Akumu, Felix Ogunmokun, Stephanie Anyanwu, Chaz Hardy

Agricultural and Environmental Sciences Faculty Research

Efficient nitrogen (N) management is essential for sustaining crop productivity while minimizing environmental impacts associated with excessive fertilizer use. Variable-rate application (VRA) offers a precision-based approach to matching N inputs with crop demand, yet winter wheat responses to reduced N rates are still underexplored. This study evaluated winter wheat (Triticum aestivum L.) performance under variable and uniform N application strategies using canopy greenness (NDVI), grain yield, plant N content, nitrogen use efficiency (NUE), and fertilizer costs as indicators. Reduced N treatments (40% and 60% VRA rates) were compared with a uniform (100%) application. Canopy greenness increased across all treatments over …

Longfin Mako (Isurus Paucus) Jaw, Nicholas D. Burchett, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

No abstract provided.

Male Great Hammerhead (Sphyrna Mokarran) Chondrocranium, Michelle W. Bassali, Nicholas D. Burchett, Samuel Escobar, Preston Rice, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Male ~10ft Great Hammerhead (Sphyrna mokarran) Chondrocranium

Cotton Response To Tillage Systems And Irrigation: Interactions With Seeding Rate And Soil Textural Zones, Jennifer Hinojosa

Student Theses and Dissertations

Arkansas cotton (Gossypium hirsutum L.) producers have made progress in sustainable production over the past twenty years with expanded adoption of soil and water conservation practices, including reduced tillage and use of winter cover crops. Producers have been uncertain about the need to modify other practices as they adopt conservation tillage systems, particularly the costly decision on whether to increase cotton seeding rates when they plant into stale seedbeds with high residue from terminated cover crops. To address this question, an on-farm experiment in northeast Arkansas was conducted to evaluate cotton performance with modified cotton seeding rates in rainfed or …