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Species Identification Using Otolith Morphometry Of Four Gurnards (Family: Triglidae) From Edremit Bay (Aegean Sea), Ahmet Mert Şenbahar, Di̇lek İlhan, Aydin Ünlüoğlu, Sencer Akalin
Species Identification Using Otolith Morphometry Of Four Gurnards (Family: Triglidae) From Edremit Bay (Aegean Sea), Ahmet Mert Şenbahar, Di̇lek İlhan, Aydin Ünlüoğlu, Sencer Akalin
Turkish Journal of Zoology
Shape and size analyses of otoliths are widely considered appropriate tools for distinguishing between fish species and for assessing populations and stocks. The present study aims to distinguish four gurnard species collected from Edremit Bay (Aegean Sea) based on variations in their otolith shape morphology. A total of 60 specimens of Eutrigla gurnardus, 64 of Chelidonichthys lastoviza, 60 of Chelidonichthys lucerna, and 60 of Lepidotrigla cavillone were analyzed. No significant intraspecific differences were noted in the morphology of the left and right otoliths, and so only the left sagittal otoliths were subjected to further analysis. Otolith shape was quantified using …
Latest Sightings Of The Striped Hyena In North Africa: Major Threats And Conservation Actions, Abderrazak El Alami, Abderrazzak Fattah, Ilyas El Alami, Ziad El Alami
Latest Sightings Of The Striped Hyena In North Africa: Major Threats And Conservation Actions, Abderrazak El Alami, Abderrazzak Fattah, Ilyas El Alami, Ziad El Alami
Turkish Journal of Zoology
The striped hyena (Hyaena hyaena) is widely distributed across the northern half of Africa, the Middle East, the Arabian Peninsula, and parts of Asia. However, numerous studies indicate that this carnivore is in decline, and it is currently classified as near threatened on the IUCN Red List of threatened species. In North Africa, the Hyaena hyaena barbara subspecies has been extirpated from many areas. This article summarizes data collected from observations of the striped hyena in North Africa between 2004 and 2024. Among the 418 striped hyenas recorded in North Africa between 2004 and 2024, 18.4% (n = 77) were …
Numerical Study Of Porosity Effects On Temperature And Fluid Flow In Black Sea Gas Hydrates, Bahar Güvem, Doğa Doğan
Numerical Study Of Porosity Effects On Temperature And Fluid Flow In Black Sea Gas Hydrates, Bahar Güvem, Doğa Doğan
Turkish Journal of Earth Sciences
Numerical temperature and fluid flow simulations were conducted using ANSYS Fluent to investigate the influence of porosity variations on the temperature distribution within the gas hydrate layer. The study was carried out in the Black Sea region, where the gas hydrate deposits are of particular interest due to their potential for energy resources. The simulations explored various porosity levels within the hydrate layer to observe their effect on thermal behavior and fluid dynamics. The results revealed that porosity plays a significant role in modulating the temperature distribution within the gas hydrate layer, with lower porosity models exhibiting higher temperatures compared …
An Ensembled Two-Phase Deep Learning Approach For A Psychiatric Disorder Detection, Prajna Paramita Debata, Midhun Chakkaravarthy, Brojo Kishore Mishra
An Ensembled Two-Phase Deep Learning Approach For A Psychiatric Disorder Detection, Prajna Paramita Debata, Midhun Chakkaravarthy, Brojo Kishore Mishra
Turkish Journal of Electrical Engineering and Computer Sciences
Computational Psychiatry represents a burgeoning realm within scientific inquiry, delving into the intricate interplay of neurobiology within the brain. The escalating prevalence of mental illness underscores the urgency to confront this challenge. Among the prevalent disorders, Schizophrenia and Bipolar Disorder loom large, affecting a significant portion of the population at some point in their lives. However, pinpointing psychiatric disorders poses a formidable challenge. Genetic predispositions significantly influence the development of mental illnesses, with intriguing overlaps observed among certain disorders. This convergence complicates accurate diagnosis. Here, a deep learning approach is considered for significant gene biomarker identification and classification of Schizophrenia …
A Joint Optimization-Based Novel Attack For Genomic Beacon Reconstruction, Kousar Saleem, Si̇nem Sav
A Joint Optimization-Based Novel Attack For Genomic Beacon Reconstruction, Kousar Saleem, Si̇nem Sav
Turkish Journal of Electrical Engineering and Computer Sciences
Genomic data sharing has become an essential component of biomedical research, enabling large-scale collaborations and accelerating discoveries in human genetics. To balance the need for accessibility with privacy concerns, several controlled-access mechanisms have been proposed, including genomic beacons. Genomic beacons answer simple presence/absence queries about specific genetic variants. However, prior work has demonstrated that beacons remain vulnerable to genome reconstruction attacks, where an adversary can recover large portions of participants’ genomes using summary statistics. Building on insights from prior reconstruction attacks, we introduce an approach that unifies SNP correlation and allele frequency alignment objectives within a single-stage joint optimization framework. …
Optimal Network Reconfiguration Based On Discrete Metaheuristic Techniques For Reduction Of Power Loss And Carbon Emission In Distribution Networks, Asad Ali, Hazlie Mokhlis, Nurulafiqah Nadzirah Mansor, Hussain Shareef, Hasmaini Mohamad, Munir Azam Muhammad
Optimal Network Reconfiguration Based On Discrete Metaheuristic Techniques For Reduction Of Power Loss And Carbon Emission In Distribution Networks, Asad Ali, Hazlie Mokhlis, Nurulafiqah Nadzirah Mansor, Hussain Shareef, Hasmaini Mohamad, Munir Azam Muhammad
Turkish Journal of Electrical Engineering and Computer Sciences
Power distribution systems play a crucial role in transmitting electrical power from generation sources to end users. During transmission, significant power losses occur in the form of heat as the current flowing along the lines/cables has resistance. To minimize power losses, distribution network reconfiguration (DNR) has been widely adopted. This paper proposes optimal DNR based on metaheuristic techniques with discrete mutation feature targeting active power loss reduction, which subsequently lowers carbon emissions and operational costs. Through the discrete mutation feature, computational time to find optimal solution has been reduced significantly with fewer iterations compared to conventional mutation techniques. The proposed …
Existence Of Positive Periodic Solutions For A First-Order Semilinear Functional Differential Equation With An Iterative Source Term, Ahlème Bouakkaz, Rabah Khemis
Existence Of Positive Periodic Solutions For A First-Order Semilinear Functional Differential Equation With An Iterative Source Term, Ahlème Bouakkaz, Rabah Khemis
Turkish Journal of Mathematics
In this paper, we will establish the existence of positive periodic solutions for a class of first order iterative functional differential equations by using a powerful and effective technique based on the Krasnoselskii fixed point theorem together with some useful properties of a Green's function. The obtained results that complement some previous works, are illustrated with an example.
A Non-Newtonian Approach To Screw Motion And Dual Numbers, Esra Parlak, Zehra Özdemi̇r
A Non-Newtonian Approach To Screw Motion And Dual Numbers, Esra Parlak, Zehra Özdemi̇r
Turkish Journal of Mathematics
In this paper, we define multiplicative dual numbers, multiplicative dual vectors, scalars, and vector products associated with the multiplicative dual numbers. We give the base elements of multiplicative dual elliptic quaternions and their operational properties. We explain the rotation and translation motions in multiplicative dual elliptical quaternions. We provide the matrix representations of the screw motion using multiplicative dual elliptical quaternions. Thanks to these multiplicative dual elliptical quaternions, we explain the screw motion along with rotation and translation with theorems and proofs. We visualize this screw motion with mathematical programs by applying screw-ruled surfaces.
Functional Characteristics Of Ice Creams Enriched With Aronia Melanocarpa And Sambucus Nigra L. Extracts, Murat Emre Terzi̇oğlu, Emi̇ne Maci̇t
Functional Characteristics Of Ice Creams Enriched With Aronia Melanocarpa And Sambucus Nigra L. Extracts, Murat Emre Terzi̇oğlu, Emi̇ne Maci̇t
Turkish Journal of Agriculture and Forestry
In this study, the effects of Aronia melanocarpa and Sambucus nigra L. extracts added at different concentrations (0.5%, 1%,and 1.5%) on the physicochemical, sensory, microbiological, antioxidant capacity (DPPH• and ABTS•+ radical scavenging activity, TPC,TFC, and TAC) antidiabetic (α-amylase and α-glucosidase inhibition), and anti-Alzheimer properties (AChE inhibitory activity) of icecream were investigated. According to the statistical analysis results, extract addition did not have an effect on the total dry matter, fatand ash ratios of the ice cream samples (p > 0.05), but it had an effect on the protein ratio, viscosity, and first drip time at the level ofp < 0.05. The addition of extract positively affected the DPPH• radical scavenging activity IC50 and ABTS•+ radical scavenging activityIC50 values of the ice cream samples, and also increased the TPC, TFC, and TAC values. Indeed, a decrease in the IC50 values of DPPH•and ABTS•+ radical scavenging activities indicates an increase in antioxidant activity. The highest TPC, TFC, and TAC values weredetected in the A-1.5 sample (sample containing 1.5% A. melanocarpa extract) as 749.33 mg GA/kg, 434.70 mg QE/kg, and 290.97 mg/kg, respectively. Similarly, the highest α-amylase inhibitory activity (23.08%), the highest α-glucosidase inhibitory activity (10.41%) andthe highest AChE inhibitory activity (14.70%) were observed in the A-1.5 sample. Extract addition had no effect on microbiologicalproperties and sensory properties except texture. The results of this study showed that A. melanocarpa, S. nigra L. extracts can be usedas a natural additive with antioxidant, antidiabetic and anti-Alzheimer activities in ice cream production.
Changes In Metabolomics And Tissue Architectural Alterations Jointly Ameliorate Salt Mediated Injuries In Nigella Sativa L., Noreen Akhter, Ayesha Ali, Muhammad Aqeel, Muhammad Muslim Shahnaz, Saima Iqbal, Ayesha Riaz, Mohammed O. Alshahrani, Ali Noman, Noreen Khalid, Khairah M. Alwutayd Alomran, Fahad Mohamed Al-Zuibar
Changes In Metabolomics And Tissue Architectural Alterations Jointly Ameliorate Salt Mediated Injuries In Nigella Sativa L., Noreen Akhter, Ayesha Ali, Muhammad Aqeel, Muhammad Muslim Shahnaz, Saima Iqbal, Ayesha Riaz, Mohammed O. Alshahrani, Ali Noman, Noreen Khalid, Khairah M. Alwutayd Alomran, Fahad Mohamed Al-Zuibar
Turkish Journal of Agriculture and Forestry
This study evaluated plant resistance to salinity across varying salt concentrations: 0, 50, 100, 150, and 200 mM NaCl. Thestudy revealed how these salt levels affected the morphological, physiological, biochemical, and developmental characteristics of theplants. At the 50 mM NaCl treatment level, plant height dropped by 8% in comparison to the control. The shoot fresh and dry weightsof every plant subjected to different levels of salt stress decreased noticeably. At 200 mM NaCl, the plants fresh weight of root decreasedby the greatest percentage (42.8%). The total number of chlorophyll a and chlorophyll b in Nigella sativa L. was significantly lower …
Chrysin Alleviates Salt Stress By Enhancing Antioxidant Enzymes, Nutrient Balance, And Phytohormone Contents In Forage Pea, Sedat Severoğlu
Chrysin Alleviates Salt Stress By Enhancing Antioxidant Enzymes, Nutrient Balance, And Phytohormone Contents In Forage Pea, Sedat Severoğlu
Turkish Journal of Agriculture and Forestry
This study aimed to evaluate the potential protective effects of chrysin (Chr), a flavonoid compound, on growth, biochemical,hormonal, and nutrient levels in forage pea (Pisum sativum ssp. arvense L.) seedlings under NaCl-induced salt stress. The experimentwas conducted under controlled greenhouse conditions in a completely randomized design with three different concentrations of Chr(Chr0: 0 mM, Chr1: 0.1 mM, and Chr2: 0.5 mM Chr) and three levels of salt stress (S0: 0 mM, S1: 100 mM, and S2: 200 mM NaCl),resulting in nine treatment combinations (T0: Chr0S0, T1: Chr0S1, T2: Chr0S2, T3: Chr1S0, T4: Chr1S1, T5: Chr1S2, T6: Chr2S0, T7: Chr2S1, andT8: …
Effects Of Gamma Irradiation On Antioxidant Enzyme Activities In Black Carrot Callus Under Drought Stress, Damla Turan Büyükdi̇nç, Di̇lruba Tabay Sümbül, Sheikh Mansoor
Effects Of Gamma Irradiation On Antioxidant Enzyme Activities In Black Carrot Callus Under Drought Stress, Damla Turan Büyükdi̇nç, Di̇lruba Tabay Sümbül, Sheikh Mansoor
Turkish Journal of Agriculture and Forestry
Daucus carota L. (carrot) is a commercially significant root vegetable widely cultivated in temperate regions for its edible taproot and valued for its high nutritional content. This study aimed to investigate the effects of drought stress on callus tissues of the Hatay black carrot (Daucus carota L. ssp. sativus var. atrorubens Alef.) genotype and to determine the impact of different gamma radiation doses on antioxidant enzyme activities. Black carrot callus tissues were exposed to gamma irradiation at doses of 0, 7, 8, and 9 Gy to evaluate their responses to drought stress. Antioxidant enzyme activities, including superoxide dismutase (SOD), …
Accumulation Of Polyphenolic Compounds In Amelanchier × Lamarckii Fruit In Conditions Of Southwestern Slovakia, Luba Durisova, Tunde Jurikova, Monika Ondrasova, Pavol Elias Jr., Deni̇z Hazar, Jiri Mlcek
Accumulation Of Polyphenolic Compounds In Amelanchier × Lamarckii Fruit In Conditions Of Southwestern Slovakia, Luba Durisova, Tunde Jurikova, Monika Ondrasova, Pavol Elias Jr., Deni̇z Hazar, Jiri Mlcek
Turkish Journal of Agriculture and Forestry
In Slovakia, snowy mespilus (Amelanchier × lamarckii F. G. Schroed.) is recognized both as an ornamental plant and alesser-known fruit species, prized for its high levels of bioactive compounds, particularly polyphenols. The aim of this study was todetect the polyphenolic profile of snowy mespilus and to assess polyphenol accumulation in cells. The total polyphenol content wasdetermined by the Folin–Ciocalteu method, antioxidant activity by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assayand the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) method, and individual polyphenolic compounds by the highperformanceliquid chromatography (HPLC) method. The results of analyses revealed that among the phenolic acids, chlorogenicacid was the most prevalent [44.24 …
Bioactive Profile And Mineral Composition Of Fruit Extracts From Four Wild Hawthorn (Crataegus Spp.) Species, Özlem Çakir, Kübra Çinar Topçu, Abdurrahman Sefali, İshak Bayyi̇ği̇t, Gülçe İlhan, Jyoti̇ Singh
Bioactive Profile And Mineral Composition Of Fruit Extracts From Four Wild Hawthorn (Crataegus Spp.) Species, Özlem Çakir, Kübra Çinar Topçu, Abdurrahman Sefali, İshak Bayyi̇ği̇t, Gülçe İlhan, Jyoti̇ Singh
Turkish Journal of Agriculture and Forestry
This study compared the antioxidant capacity, total phenolic content (TPC), phenolic composition, lipid oxidation level, andmineral profiles of extracts obtained from four wild hawthorn species (Crataegus tanacetifolia, C. orientalis subsp. orientalis, C. orientalissubsp. szovitsii, and C. monogyna) collected from northeastern Türkiye. Significant interspecific variations were observed in DPPH,FRAP, and CUPRAC assays. While C. monogyna had the highest reducing capacity and TPC, C. orientalis subsp. szovitsii had the highestDPPH activity. Ultra-high performance liquid chromatography coupled to tandem mass spectrometry analysis showed that catechin,epicatechin, chlorogenic acid, and quinic acid were the major phenolics, and were particularly abundant in C. monogyna. Despitehaving a …
Exploring Molecular And Morphological Diversity Of Ostracoda: A Combined Approach Based On Coi Sequences And Morphological Characters, Serdar Di̇nç, Serap Mutun, Okan Külköylüoğlu
Exploring Molecular And Morphological Diversity Of Ostracoda: A Combined Approach Based On Coi Sequences And Morphological Characters, Serdar Di̇nç, Serap Mutun, Okan Külköylüoğlu
Turkish Journal of Zoology
Ostracods are diminutive aquatic invertebrates with a broad geographical distribution across a diverse range of aquatic habitats, including lentic and lotic freshwater environments as well as marine waters. Due to their sensitivity to environmental changes, ostracods are valuable tools in biodiversity monitoring, providing a link to past, present, and future ecological conditions. Despite the significance of classical taxonomic studies in species identification, molecular approaches remain underutilized in ostracod research, representing an area of potential growth for advancing our understanding of this diverse group. Thus, molecular studies in ostracods have the potential to greatly enhance our understanding of morphology, ecological variation …
Spatial And Temporal Variability Of Mayfly Communities (Insecta: Ephemeroptera) In Mountainous And Semimountainous Rivers Of The Western Aegean Basin, Biljana Rimcheska, Yanka Vidinova
Spatial And Temporal Variability Of Mayfly Communities (Insecta: Ephemeroptera) In Mountainous And Semimountainous Rivers Of The Western Aegean Basin, Biljana Rimcheska, Yanka Vidinova
Turkish Journal of Zoology
Mayflies are among the most abundant benthic invertebrates inhabiting natural lotic freshwater systems. Their assemblages vary with environmental, geographical, and hydrological conditions along altitudinal gradients and under different types of watershed disturbance. The main objective of this study was to analyze the composition and β-diversity of mayflies across three river watersheds and to assess how these assemblages differ among them. We collected biological and environmental data from 38 sampling sites distributed across the three river watersheds. We hypothesized that mayfly assemblages would vary with environmental gradients on both spatial and temporal scales; specifically, we expected pristine streams to exhibit higher …
Towards The Assessment Of E-Flows: A Fish-Based Approach For The Tiber River Basin (Central Italy), Antonella Carosi, Francesca Lorenzoni, Fatemeh Zarei, Rachele Brustenga, Lucio Di Matteo, Daniela Valigi, Corrado Cencetti, Carlo Cardellini, Stefano Casadei, David Cappelletti, Massimo Lorenzoni
Towards The Assessment Of E-Flows: A Fish-Based Approach For The Tiber River Basin (Central Italy), Antonella Carosi, Francesca Lorenzoni, Fatemeh Zarei, Rachele Brustenga, Lucio Di Matteo, Daniela Valigi, Corrado Cencetti, Carlo Cardellini, Stefano Casadei, David Cappelletti, Massimo Lorenzoni
Turkish Journal of Zoology
Estimating ecological flows (EFs) in rivers is crucial for meeting the Water Framework Directive (WFD) 2000/60/EC goals. To develop an EF model, it is essential to use biological indicators to reliably record the impacts of human-induced alterations on aquatic ecosystems. The adaptability of fish to annual flow variability makes them a significant biological quality element (BQE). Consequently, using fish as bioindicators is a powerful tool for assessing the impact of changes in the hydrological regime on the natural communities within a river system. The new index of the ecological status of fish communities (NISECI) is a methodology developed in Italy …
Chlorella Vulgaris Measurements Using Full-Spectrum Goniometer For Optically Complex Inland Water Monitoring, Pinar Gürbüzer, Uğur Murat Leloğlu
Chlorella Vulgaris Measurements Using Full-Spectrum Goniometer For Optically Complex Inland Water Monitoring, Pinar Gürbüzer, Uğur Murat Leloğlu
Turkish Journal of Zoology
Rising environmental stressors, including climate change, nutrient loading, pollution, and anthropogenic impacts, have made the continuous monitoring of lake water quality increasingly essential. While in situ methods offer high precision, satellite-based remote sensing is essential for capturing large-scale, long-term changes and accessing remote or extreme environments. To complement these approaches, we developed a cost-effective in situ optical measurement system specifically designed for optically complex inland waters. T he instrument enables detailed optical characterization across scattering angles from 0° to 160° and wavelengths between 423 and 728 nm, covering both visible and near-infrared regions. Initial validation was performed using monocultures of …
Assessing Tree Species Diversity In Forests Using Combined Remote Sensing Data, Tufan Demi̇rel
Assessing Tree Species Diversity In Forests Using Combined Remote Sensing Data, Tufan Demi̇rel
Turkish Journal of Agriculture and Forestry
Tree species diversity (TSD) is a critical biological variable for ecosystem functioning and sustainable forest management.This study aimed to model TSD in forest ecosystems using spectral and texture metrics extracted from Sentinel-2, WorldView-3,and PlanetScope satellite imagery, and structural metrics derived from LiDAR data. Tree species data collected through field surveyswere used to calculate Shannon, Simpson, and species richness biodiversity indices. These biodiversity indicators were then related toexplanatory variables derived from remote sensing (RS) metrics. The Boruta algorithm was applied for variable selection and randomforest regression analysis was used for modeling. The results show that combining LiDAR and satellite data is …
Production Of The Antitumor Compound Deoxyharringtonine By Suspension-Culturedcells Of Cephalotaxus Hainanensis, Liang Wang, Muhammad Mubashar Zafar, Chongyu Wu, Zhiqiang Xiong, Jingyi Sun, Huapeng Sun, Hanqing Cong, Xuefei Jiang, Mahmoud F. Seleiman, Fei Qiao, Peter Nick
Production Of The Antitumor Compound Deoxyharringtonine By Suspension-Culturedcells Of Cephalotaxus Hainanensis, Liang Wang, Muhammad Mubashar Zafar, Chongyu Wu, Zhiqiang Xiong, Jingyi Sun, Huapeng Sun, Hanqing Cong, Xuefei Jiang, Mahmoud F. Seleiman, Fei Qiao, Peter Nick
Turkish Journal of Agriculture and Forestry
Plant cell fermentation can be a sustainable biotechnological alternative to the wild collection of medicinal plants. As aparadigm, we explored the potential of using the highly endangered endemic tree Cephalotaxus hainanensis, which accumulatescephalotaxine esters—potent anticancer compounds. We successfully established a suspension cell line able to convert cephalotaxineinto its esters, including deoxyharringtonine, harringtonine, isoharringtonine and homoharringtonine at a remarkable maximalconversion rate of up to 86%, when supplemented with L-homoleucine, a precursor for the side chains of these esters. Furthermore, byadding elicitors, we were able to enhance the yield significantly beyond the values expected from the complete conversion of the addedcephalotaxine. In …
Influence Of Plasticizer Type On The Structure And Drug Release Characteristics Of Lm-Pectin Hydrogels, Banu Kocaağa, Fatma Seni̇ha Güner
Influence Of Plasticizer Type On The Structure And Drug Release Characteristics Of Lm-Pectin Hydrogels, Banu Kocaağa, Fatma Seni̇ha Güner
Turkish Journal of Chemistry
This study investigated the effects of different plasticizers—castor oil (CO), polyvinylpyrrolidone (PVP), and polyethylene glycol (PEG) with varying molecular weights (MWs)—on the structure and drug-release performance of low-methoxyl pectin (LM-pectin) hydrogels. Theophylline was used as a model drug to evaluate release behavior under physiologically relevant conditions. The incorporation of plasticizers modulated polymer–polymer interactions, swelling behavior, and thermal properties, thereby affecting drug-release kinetics. CO, a hydrophobic triglyceride, created microdomain-induced diffusion pathways; PVP, containing water-affinitive lactam units, facilitated moisture-driven plasticization; and PEG (MW 400/1000/1500), with hydroxyl-terminated chains, established hydrogen bonds with pectin. Structural analyses (FTIR and DSC) revealed that CO disrupted pectin …
Antioxidant Potential Of Sulfenimides In Waste Walnut Oil Biodiesel: Kinetic Stability, Phosphomolybdenum Activity, And Reducing Power Capacity, Nalan Türköz Karakullukçu, Hasan Yakan, Volkan Murat Yilmaz, Hali̇t Muğlu, Semi̇ha Yeni̇gün, Hali̇l Kütük
Antioxidant Potential Of Sulfenimides In Waste Walnut Oil Biodiesel: Kinetic Stability, Phosphomolybdenum Activity, And Reducing Power Capacity, Nalan Türköz Karakullukçu, Hasan Yakan, Volkan Murat Yilmaz, Hali̇t Muğlu, Semi̇ha Yeni̇gün, Hali̇l Kütük
Turkish Journal of Chemistry
This study investigated the influence of synthetic sulfenimides on biodiesel–diesel fuel blends. Three previously synthesized sulfenimide derivatives were structurally characterized using spectroscopic techniques. We evaluated their antioxidant properties through phosphomolybdenum activity and reducing power capacity assays. The tested fuel samples were designated as D100, B10D90, B10D90_AA (ascorbic acid), B10D90_3, B10D90_2, and B10D90_1. The effect of adding 2000 ppm of the additive was measured using an Oxifast instrument following the ASTM D7545 standard, and the results were compared to those of the chemical antioxidant ascorbic acid. Inhibition time values were derived from the oxidation stability results. The starting temperatures for crystallization …
Investigating The Structure And Bioactivity Of Lanthanum Coordination Compounds, Shantanu Kadam, Bhushan Dhale, Bapu Yamgar, Swaminath Bhattar
Investigating The Structure And Bioactivity Of Lanthanum Coordination Compounds, Shantanu Kadam, Bhushan Dhale, Bapu Yamgar, Swaminath Bhattar
Turkish Journal of Chemistry
Lanthanum metal complexes were synthesized using a classical condensation method by reacting lanthanum nitrate salts with a bidentate ligand in a 1:2:1 molar ratio (M:L:L). The formation and structure of the resulting complexes were confirmed through a combination of analytical techniques, including Fourier transformation infrared spectroscopy, thermal gravimetric analysis, X-ray diffraction, elemental microanalysis, and scanning electron microscopy. The lanthanum complexes synthesized exhibited strong in vitro antimicrobial activity. Antibacterial screening showed inhibition zones of 18–26 mm against Staphylococcus aureus and Escherichia coli, surpassing those of the reference drug ciprofloxacin (16–20 mm). Antifungal studies demonstrated inhibition zones of 15–23 mm against Candida …
Expression, Purification, And Crystallization Of Recombinant Human Abl-1 Kinase For X-Ray Crystallography, Ayça İrgi̇t, Hali̇li̇brahi̇m Çi̇ftçi̇, Hasan Demi̇rci̇
Expression, Purification, And Crystallization Of Recombinant Human Abl-1 Kinase For X-Ray Crystallography, Ayça İrgi̇t, Hali̇li̇brahi̇m Çi̇ftçi̇, Hasan Demi̇rci̇
Turkish Journal of Chemistry
Abelson-1 (ABL-1) is a nonreceptor tyrosine kinase that plays essential roles in various cellular processes, including proliferation, survival, differentiation and its kinase activity is tightly regulated. The dysregulated ABL-1 kinase activity is linked to disease pathogenesis like Chronic Myeloid Leukemia (CML), where the BCR::ABL-1 fusion oncoprotein drives oncogenic signaling. Due to its central role in CML pathogenesis, understanding the structure of ABL-1 is crucial for the effective management of the disease and drug development studies. This study focuses on optimizing the expression, purification and crystallization of the recombinant human ABL-1 kinase domain for its structural analysis via X-ray crystallography and …
Zoledronic Acid-Loaded Hap–Sio2–Camoo4:Eu3+ With Luminescent Properties As A Novel Drug Delivery System, Emi̇ne Kutlu, Muhammad Asim Ali, Fati̇h Mehmet Emen, Canan Vejselova Sezer, Hati̇ce Mehtap Kutlu
Zoledronic Acid-Loaded Hap–Sio2–Camoo4:Eu3+ With Luminescent Properties As A Novel Drug Delivery System, Emi̇ne Kutlu, Muhammad Asim Ali, Fati̇h Mehmet Emen, Canan Vejselova Sezer, Hati̇ce Mehtap Kutlu
Turkish Journal of Chemistry
CaMoO4:Eu3+-functionalized hydroxyapatite–silica (HAp–SiO2–CaMoO4:Eu3+) core–shell nanocomposites were synthesized for the first time and evaluated as a multifunctional drug delivery and imaging platform. HAp–SiO2 nanocomposites were prepared via a hydrothermal route and subsequently functionalized with a luminescent CaMoO4:Eu3+ shell using the Pechini sol–gel method. Structural analyses confirmed the successful coexistence of HAp, SiO2, and CaMoO4:Eu3+ phases, while electron microscopy revealed spherical core–shell morphologies. Dynamic light scattering measurements showed average hydrodynamic particle sizes of approximately 1085 nm for HAp–SiO2 and 1427 nm for HAp–SiO2–CaMoO4:Eu3+ nanocomposites, indicating particle clustering in aqueous media, which is consistent with the low surface charge of the particles. The …
Determination Of Cortisol Concentrations Using Different Biomarkers In Dairy Goats During Pregnancy, Fatma Mi̇ra Güven, Erkan Pehli̇van
Determination Of Cortisol Concentrations Using Different Biomarkers In Dairy Goats During Pregnancy, Fatma Mi̇ra Güven, Erkan Pehli̇van
Turkish Journal of Veterinary & Animal Sciences
Pregnancy is considered one of the most physiologically stressful periods in mammals. In the present study, serum and hair cortisol concentrations were measured in nine female Akkeçi goats, including five primiparous (1.5 years old) and four multiparous (3.5 years old), to evaluate chronic stress during pregnancy. Hair samples were collected in October, November, and December following the introduction of bucks to the herd and within the first 12 h postpartum (corresponding to the 1st, 2nd, 3rd, and 7th sampling times). Hair samples were not collected in January, February, or March (the 4th, 5th, and 6th sampling times) due to insufficient …
Effects Of Zinc-Reinforced Clinoptilolite On Hematological Parameters, Igg Levels, And Enzyme Histochemistry In Fattening Lambs, İhsan Kisadere, Muhi̇tti̇n Zengi̇n, Özkan Demi̇rbaş, Mehmet Faruk Aydin
Effects Of Zinc-Reinforced Clinoptilolite On Hematological Parameters, Igg Levels, And Enzyme Histochemistry In Fattening Lambs, İhsan Kisadere, Muhi̇tti̇n Zengi̇n, Özkan Demi̇rbaş, Mehmet Faruk Aydin
Turkish Journal of Veterinary & Animal Sciences
The study aimed to determine the effects of zinc-reinforced clinoptilolite supplementation to the diet on selected hematological parameters, serum immunoglobulin G (IgG) concentrations, and enzyme histochemical characteristics in fattening lambs. For this purpose, 40 healthy male lambs were randomly allocated into five equal groups: control (C; n = 8), natural clinoptilolite (NC; n = 8), zinc (ZN; n = 8), natural clinoptilolite plus zinc (NCZN; n = 8), and zinc-reinforced clinoptilolite (ZNRC; n = 8). All animals were housed in individual pens, and the supplementation period continued for 42 days. Blood samples were collected before the trial (day 0) and …
Comparison Of The Mars And Xgboost Algorithms For Predicting Body Weight In Kalahari Red Goats, Louis Thobela Tyasi, Cem Tirink, Kwena Mokoena, Hasan Önder, Uğur Şen, Demet Çanga Boğa, Tolga Tolun, İsmai̇l Gök, Yüksel Aksoy, Lütfi̇ Bayyurt, Ömer Faruk Yilmaz
Comparison Of The Mars And Xgboost Algorithms For Predicting Body Weight In Kalahari Red Goats, Louis Thobela Tyasi, Cem Tirink, Kwena Mokoena, Hasan Önder, Uğur Şen, Demet Çanga Boğa, Tolga Tolun, İsmai̇l Gök, Yüksel Aksoy, Lütfi̇ Bayyurt, Ömer Faruk Yilmaz
Turkish Journal of Veterinary & Animal Sciences
Estimating goat body weight from morphometric traits is essential for growth monitoring, health management, and welfare. Accurate weight informs nutrition, clinical interventions, and mating decisions. In this study, the MARS and XGBoost algorithms were used to estimate the live weight of Kalahari Red goats based on body measurements. A dataset containing body length (BL), birth type (single, twin, or triplet), withers height (WH), rump height (RH), and heart girth (HG) information for 200 goats was used in the training and testing of the models. The performances of the models were evaluated with the goodness-of-fit criteria. XGBoost showed a performance of …