WoS İndeksli Yayınlar
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Web of Science Synthesis of new 5-iodoisatin derivatives: Predicting antioxidant inhibition activity with DFT studies(2025.01.01) Çavus, M.S.New 5-iodoisatin-aryl/alkyl/thiosemicarbazones (1-8) were synthesized from various isocyanates and 5-iodoisatin, and their structures were validated by spectroscopic and elemental analysis. The in vitro antioxidant activity of these compounds was tested using the DPPH free radical trapping method, yielding IC50 values ranging from 14.11 to 20.48 mu M. DFT calculations were performed at the B3LYP/6-311++G(2d,2p) level of theory using the genecp approach with the def2-QZVPP basis set for the iodine atom. The intrinsic bond strength index (IBSI) values of the N-H bonds in the compounds, along with their density of state (DOS) properties and average local ionization energies (ALIE), were investigated. The influence of SET and HAT mechanisms in the reaction of compounds with DPPH was predicted based on the concentration of the compounds, and the possible effects of parameters that support the dominant characteristics in these reactions were investigated using computational data such as single electron transfer enthalpy (SETE) and bond dissociation energy (BDE). Furthermore, a function based on DFT data was proposed to compare the inhibition percentages of the compounds' reactions with DPPH to each other and to Trolox. Strong correlations were obtained suggesting that the inhibition effect of the compounds relative to Trolox could be estimated computationally with the function. The Pearson correlation coefficients between the experimental inhibition percentages of compounds and Trolox and the values predicted by the function at low concentrations of 1.25 and 2.50 mu M were calculated as 0.924 and 0.968, respectively. For higher concentrations in the range of 5.00-12.50 mu M, correlations ranging from 0.848 to 0.923 were obtained.Web of Science Metal-Doped Nitride-Based Nanostructures for Saving Sustainable and Clean Energy in Batteries(2025.01.01) Mollaamin, F.; Monajjemi, M.The hypothesis of the energy adsorption phenomenon was confirmed by density distributions of CDD, TDOS, and LOL for GaN and ternary alloys of AlGaN and InGaN. Based on TDOS, the excessive growth technique on doping manganese is a potential approach to designing high-efficiency hybrid semipolar gallium nitride-based devices in a long wavelength zone. A vaster jointed area engaged by an isosurface map for Mn doping GaN, AlGaN, and InGaN toward formation of nanocomposites of Mn@GaN-H, Mn@AlGaN-H, and Mn@InGaN-H after hydrogen adsorption due to labeling atoms of N(4), Mn(5), and H (18), respectively. Therefore, it can be considered that manganese in the functionalized Mn@GaN, Mn@AlGaN, or Mn@InGaN might have more impressive sensitivity for admitting the electrons in the status of hydrogen adsorption. Furthermore, Mn@GaN, Mn@AlGaN, or Mn@InGaN are potentially advantageous for certain high-frequency applications requiring batteries for energy storage. The advantages of manganese over GaN, AlGaN, or InGaN include its higher electron and hole mobility, allowing manganese doping devices to operate at higher frequencies than nondoping devices. A comprehensive investigation on hydrogen grabbing by heteroclusters of Mn-doped GaN, AlGaN, and InGaN was carried out using DFT computations. The position of the Mn-doped energy states was evaluated via the spectra obtained from the bipolar devices with the Mn-doped GaN/AlGaN/InGaN as an active layer.Web of Science High-Sensitive Cardiac Troponin I and Th1/Th2 Polarization in Queens With Pyometra(2025.01.01) Safak, T.; Saat, N.; Yilmaz-Koc, O.; Turanli, M.; Ayalp-Erkan, A.; Risvanli, A.Objectives: To determine T helper (Th)1 and Th2 cytokine polarization, as well as high-sensitive cardiac troponin I (hs-cTnI) levels, in cats with pyometra. Methods: We used 40 queens in the study. A total of 20 out of these 40 queens were diagnosed with the pyometra group (PYO) and the other 20 made up the healthy group (control; CTR). We measured concentrations of hs-cTnI, aspartate aminotransferase (AST), creatine kinase (CK) and l-lactate in queens from both groups. Additionally, we measured cytokine concentrations in all queens. Results: The hs-cTnI concentration in the PYO group (26.95 +/- 5.08 ng/L) was significantly higher than that of the CTR group (7.00 +/- 0.82 ng/L) (p < 0.000). Furthermore, the PYO group had a higher CK concentration (344.50 +/- 39.63 U/L) than the CTR group (191.00 +/- 15.44 U/L) (p = 0.002). The PYO group also demonstrated higher concentrations of TNF-alpha (9.77 +/- 0.81 ng/mL), IFN-gamma (25.37 +/- 2.09 ng/mL), IL-2 (4.37 +/- 0.39 ng/mL), IL-4 (245.64 +/- 15.83 pg/mL), IL-5 (63.13 +/- 1.65 pg/mL) and IL-10 (123.58 +/- 4.30 ng/mL) compared to the CTR group (p < 0.000). Conclusions: Overall, it is suggested that changes in cytokine concentrations increase in queens with pyometra, potentially causing harm to the heart muscle. It is crucial to consider that the heart muscle may also be affected in queens with pyometra during the treatment process.Web of Science Environmental, Social, and Governance (ESG) Dynamics in the Energy Sector: Strategic Approaches for Sustainable Development(2024.01.01) Yucel, M.; Yucel, S.ESG metrics have become increasingly important in evaluating corporate sustainability and meeting regulatory expectations. Thus, it is essential to explore these elements for a clearer understanding. This study examined the environmental (E), social (S), and governance (G) scores across various sub-sectors of the energy industry. Using systems thinking and creating shared value (CSV) approaches, the research investigated whether ESG performance varies significantly among the sub-sectors and how changes in one pillar might influence the others. Data from 576 companies in the Thomson Reuters EIKON database were analyzed using ANOVA, correlation, and multiple regression. The results revealed distinct differences in the ESG scores among sub-sectors, with environmental and social practices often reinforcing each other. However, governance showed a weaker influence, highlighting the need for further research on governance frameworks to clarify the underlying reasons and to integrate better with other ESG pillars. The research has specific implications for strategic management and provided recommendations for further studies.Web of Science Diaspora of Diaspora: Turkey-Finnish Tatars Relations(2024.01.01) Küçük, E.; Yilmaz, M.From the rise of the diaspora of Mishar Tatar Turks in Finland - now known as the Finnish Tatar community - in the late 19th century to the present, the community has sought connections with the Ottoman Empire and later the Turkish Republic (from 1923 onward). Cold War politics partially account for why Finnish Tatars sought Turkish support, given that the community's homeland lay in Soviet Russia. Even as Finnish Tatars re-established links with fellow Mishar Tatar Turks in present-day Russia, the diaspora community has continued to seek support from Turkey. Furthermore, Finnish Tatars have, in turn, supported Turkey, especially in advocating for Turkey's acceptance into the European Union. Using diaspora studies, this article addresses the gap in connections between Finnish Tatars and Turkey. Through an overview of relations between Finnish Tatars and Turkey and a case study on the establishment of the Finnish-Turkish Folk School in 1948, which was born with influence from Turkey, the article argues that the transnational connections between Finnish Tatars and Turkey have been beneficial to both parties.Web of Science From seeds to science: fostering scientific inquiry through tree activities in early education(2024.01.01) Kaya, G.; Ahi, B.Scientific inquiry is recognized for enhancing children's scientific thinking, reasoning, and questioning skills at an early age, while also increasing their science capital. However, how scientific inquiry practices can be effectively implemented at this age remains a challenge. This study used an activity combining scientific inquiry and environmental education that can be used in early childhood classrooms. The details given in the study and how children were actively involved in the process were also clearly stated. In light of the questions asked by the children at the end of the activity, how scientific inquiry sprouted was discussed. This study will be a guiding light for teachers who want to employ scientific inquiry in their classrooms at an early stage and who want to use a structure integrated with the concept in the curriculum.Web of Science Monitoring the operational changes in surface reflectances after logging, based on popular indices over Sentinel-2, Landsat-8, and ASTER imageries(2025.01.01) Genç, Ç.Ö.; Altunel, A.O.Revealing the status of forests is important for sustainable forest management. The basis of the concept lies in meeting the needs of future generations and today's generations in the management of forests. The use of remote-sensing (RS) technologies and geographic information systems (GIS) techniques in revealing the current forest structure and in long-term planning of forest areas with multipurpose planning techniques is increasing day by day. Significant technological advances are in allowing programmers to modernize how they manage data. Sentinel-2, which is a relatively new addition to Earth observing satellites, is a new-generation satellite that has enabled classification and monitoring of land cover change with high precision at ease. Visible R, G, B, and near-infrared (NIR) bands have offered exceptional 10-m spatial reasolution, making them suitable for vegetation monitoring along with the additional 20-m bands to spare especially in chlorophyll content analyses. On the contrary, Landsat-8 and ASTER which have been longer lasting in Earth observation were rougher results especially in forestry studies. In this study, Landsat-8 and ASTER satellite images were compared against the Sentinel-2 images as a reference in conjunction with GIS techniques to monitor and assess the impact of various logging procedures, including selective logging and regeneration silviculture. The investigation employed a range of plant vegetation indices, including NDVI, GNDVI, and SAVI, to evaluate the efficacy of image resolution in detecting forest cover changes in the Kastamonu region, where the timber production is the hightest in Turkey. For selective and regeneration activities, satellite images were taken pre-harvesting and immediately post-harvesting, and index maps were produced. NDVI, GNDVI, and SAVI indices were the most accurate indicators of green vegetation change in the Sentinel-2A imagery. Similarly, for the Landsat-8 imagery, the SAVI, NDVI, and GNDVI indices were found to be satisfactory indicators. As for ASTER imagery, the success sequance was like SAVI, GNDVI, and NDVI. Based on the findings of this study, it has been noted that the ASTER imagery closeness to Sentinel-2A was more remarkable in detecting changes in green vegetation in forested areas. The data derived from ASTER imageries demonstrated superior efficacy compared to Landsat-8 in generating forest cover maps, owing to their proximity to those produced by Sentinel-2. The findings also indicated that ASTER imagery, with suitable spatial and spectral resolution, could still be utilized as efficienly as Landsats to generate forest cover density maps and monitor long-term forest conservation practices, particularly in professionally managed forests. Thus, this methodology demonstrated the capacity for efficient worldwide forest management.Web of Science Climate change impact on blood haemogram in the horse: a three-year preliminary study(2024.01.01) Deniz, Ö.; Aragona, F.; Murphy, B.A.; Tümer, K.C.; Bozaci, S.; Fazio, F.Introduction The global climatic changes pose a substantial threat to the well-being and productivity of both humans and animals. Methods This study examined the impact of climate changes during different seasons over a 3-year monitoring period (2021-2023) on various blood parameters including, white blood cells (WBC), neutrophils, basophils, eosinophils, lymphocytes, and monocytes, hematocrit (HCT), hemoglobin (HGB), red blood cells (RBC), platelets (PLT), mean corpuscular hemoglobin concentration (MCHC), mean corpuscular volume (MCV), and mean corpuscular hemoglobin (MCH). The study focused on 25 Thoroughbred mares located in Kastamonu-T & uuml;rkiye. Thermal and hygrometric parameters, including ambient temperature, relative humidity, and ventilation, were collected. Subsequently, Temperature-Humidity index (THI) was computed. Blood samples were collected on the first day of every month from January 2021 to December 2023 and used for a complete blood count analysis. Between 2021 and 2023, changes in environmental indicators were correlated to changes in hematological parameters. Results Two-way for repeated measures ANOVA revealed a significant seasonal fluctuation (<0.0001) in ambient temperature, relative humidity, and THI. There was a reduction in RBC (<0.01), and MCH (<0.01) every year, HGB (<0.0001) in summer 2021, 2022 and in summer and autumn 2023. HCT (<0.0001), MCV (<0.01), showed decreasing values in autumn 2022 and 2023. MCHC values showed increasing values in July and August 2021, 2022 and in June 2023. WBC levels increased throughout the spring periods of 2021 and 2022. In April 2021, there were elevated levels of lymphocytes and monocytes (<0.0001) respectively. Discussion These findings could be helpful to promote the monitoring of physiological status both for the assessment of welfare status and for diagnostic purposes for the evaluation of possible disease outbreaks due to climate change in veterinary medicine.Web of Science The Effect of Patient Position on the Fluoroscopy Doses Received in Hip Fracture Surgery(2024.01.01) Ugur, F.; Albayrak, M.; Akar, B.; Sabir, M.A.; Sen, A.E.Aim: The study evaluates the impact of patient positioning on radiation doses received during fluoroscopy in proximal femoral nailing for hip fractures. With the increasing use of minimally invasive, imaging-guided procedures, it is crucial to assess radiation exposure risks to both patients and healthcare workers. Prior research indicates that various factors, including patient positioning, can influence radiation doses.Materials and Methods: This study included patients who underwent proximal femoral nailing for hip fractures from January 2023 to May 2024. Patients' positions were supine on a traction table, lateral decubitus position on a radiolucent table. Fluoroscopy data, including fluoroscopy time, dose-area product (DAP), and radiation dose, along with patient demographics and body mass index (BMI), were analyzed. Results: A total of 114 patients were included. There were no significant differences in demographic characteristics between the groups. The mean fluoroscopy time was 42.02 +/- 25.75 seconds, with no significant difference between positions. The mean radiation dose was 18.72 +/- 16.24 milligray (mGy), and the mean DAP was 3.50 +/- 3.07 Gy-cm(2), with no significant differences across positions. However, a statistically significant positive correlation was found between BMI values and dose mGy values (r=0.242, p=0.009). Similarly, a statistically significant positive correlation was observed between BMI values and DAP values (r=0.243, p=0.009). However, the mean number of fluoroscopic shots was significantly higher in the supine position compared to the lateral position.Conclusion: Patient positioning did not significantly affect fluoroscopy time or radiation dose proximal femoral nailing procedures for hip fractures. However, the number of fluoroscopic shots was lower in the lateral position. High BMI was positively correlated with dose mGy and DAP values except for time. The findings highlight the importance of considering BMI in radiation dose management and suggest that the lateral position may be preferable for minimizing radiation exposure.Web of Science Recycling aerated concrete waste as aggregate to produce eco-friendly foamed mortar (EFM)(2025.01.01) Bayraktar, O.Y.; Sarigül, E.; Yüksel, M.; Jamal, A.S.; Kara, H.O.; Ayyildiz, M.A.; Kaplan, G.Non-structural components are difficult to recycle into fresh concrete due to their high porosity, high water absorption, and low strength. This study uses aerated concrete waste (ACW) as a case study to investigate the effect of recycled concrete aggregate on the performance of eco-friendly foamed mortar (EFM). The results show that while incorporating ACW reduces fluidity and mechanical properties due to its porous structure, it enhances the lightweight and thermal insulation capabilities of EFM, making it suitable for non-structural applications. When 25% ACW is applied, the 28-day compressive strength (CS) of plain EFM decreases by 64.82%, while the hardened unit weight and thermal conductivity decrease by 17.49% and 30.85%, respectively. The addition of PPF compensates for the mechanical strength loss from ACW, with the bridging effect of PPF inhibiting crack formation and interlocking with aggregates and cement paste, though it further reduces fluidity. When 0.5% PPF is applied, the 7- and 28-day flexural strength of the plain EFM increased by 77.35% and 30.54%, but this resulted in a 22.22% reduction in fluidity. This study presents a feasible approach for recycling low-grade construction waste in EFM production, contributing to the development of sustainable construction materials.Web of Science Magnetic Biochar Production from Agricultural Waste and Reactive Blue 19 Removal by Peroxymonosulfate Activation(2024.01.01) Kader, N.; Degermenci, G.D.The conversion of agricultural biomass waste into value-added biochar (BC)-based catalysts is of great interest. Magnetic biochar is an excellent material that facilitates both solid-liquid separation and peroxymonosulfate (PMS) activation. In this study, magnetic biochar was produced from pea pod, an agricultural waste, by pyrolysis, hydrothermal methods, and precipitation. The structure, morphology, and magnetic separation properties of magnetic biochar produced from pea pod (MPPBC) were comprehensively analyzed by different characterization methods. Reactive blue 19 (RB19) was selected as a model pollutant to evaluate the performance of the MPPBC/PMS system. The effect of initial solution pH, MPPBC dosage, PMS concentration, initial RB19 concentration, reusability, and concentrations of anions and natural organic matter concentrations on the removal of RB19 in the MPPBC/PMS system was investigated. The results showed that MPPBC could effectively activate PMS, and RB19 removal reached 85% at an initial solution pH of 3, an MPPBC dosage of 0.20 g/L, a PMS concentration of 0.50 mM, an initial RB19 concentration of 25 mg/L, and an oxidation time of 60 min. The reusability of MPPBC showed an 8% decrease in the removal efficiency of RB19 after four uses. Anions and natural organic matter added to the solution were found to decrease the removal of RB19. The kinetics of RB19 removal in MPPBC/PMS system was determined using first order, second order, and Behnajady-Modirshahla-Ghanbery (BMG) models. As a result of kinetic calculations, the BMG kinetic model was found to be more effective for describing the removal efficiency of RB19.Web of Science Using Trees to Monitor Airborne Cr Pollution: Effects of Compass Direction and Woody Species on Cr Uptake during Phytoremediation(2025.01.01) Pulatoglu, A.O.; Koç, I.; Özel, H.B.; Sevik, H.; Yildiz, Y.Among the heavy metals (HMs) whose concentrations in natural environments have risen considerably in the last era, chromium (Cr) is one of the most toxic. Because of the risks it poses to human and environmental health, it is of great importance to screen the variation in Cr contamination in the atmosphere and decrease the pollution. This study aimed to determine the proper tree species that can be used to monitor and reduce Cr contamination. For this aim, studies were conducted on Tilia tomentosa, Robinia pseudoacacia, Cedrus atlantica, Pseudotsuga menziesii, and Fraxinus excelsior species growing in D & uuml;zce, which is among the 5 most contaminated European towns according to the World Air Pollution report. Samples taken from these trees were examined, and changes in Cr concentration depending on species, organs, compass direction, and age range in the last 60 years were evaluated. Results indicated higher Cr pollution in recent years, consistent with higher traffic density, but that there was no consistent effect of compass direction. It was also determined that the tree species most appropriate for screening the variation in Cr contamination in the airborne were Tilia tomentosa, and the most appropriate species for decreasing pollution were Robinia pseudoacacia and Cedrus atlantica.Web of Science Predictors of citations: an analysis of highly-cited-papers in hospitality and tourism research using a machine learning approach(2024.01.01) Polat, E.; Çelik, F.; Arici, H.E.; Köseoglu, M.A.In the dynamic nature of hospitality and tourism (H&T) research, it is increasingly difficult to distinguish highly-cited-papers (HCPs) due to the rapid proliferation of publications. This study employs machine learning techniques to identify the predictors of citation counts in H&T research over both short-term (5-year) and long-term (20-year) periods using HCPs. The analysis integrates a theoretical framework comprising normative theory and social constructivist theory. The findings indicate that international citation, PlumXmetrics, and early citations are the most effective determinants in both periods. Furthermore, while the importance of international citations is evident in both periods, the order of importance of the other two predictors changes. PlumXmetrics are more important in the long-term, while early citations are more important in the short-term. In conclusion, this comprehensive and up-to-date study of citation dynamics provides valuable insights for scholars and other stakeholders interested in enhancing the visibility and influence of H&T literature.Web of Science Structural and Mechanical Dynamics of Y-358 Superconductors Influenced by Tb/Y and Zn/Cu Substitutions(2025.01.01) Ozturk, O.; Guducu, G.; Kurnaz, S.; Seydioglu, T.; Safran, S.The search for superconductors with superior mechanical properties has driven research into homovalent replacements. In this work, we have systematically incorporated Tb/Y and Zn/Cu dopants into Y3-x(Tb)xBa5Cu8O18-delta and Y3Ba5Cu8-x(Zn)xO18-delta based bulk superconductors using the sol-gel technique. Our goal was to explore the fundamental mechanisms linking dopant concentration (0-15%), substitution, processing, and mechanical performance. Understanding these mechanisms can help in designing robust and high-performance superconducting materials for various technological applications. The samples were extensively investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), Vickers hardness measurements and related calculations. The hardness data were further evaluated using Meyer's law, the proportional sample resistance (PSR) model, the elastic/plastic deformation (EPD) model, the Hays-Kendall (HK) approach, and the indentation-induced cracking (IIC) model. This study reveals the fundamental changes in the properties of Y-358 superconductors due to Tb/Y and Zn/Cu substitutions. The interpretation of the XRD study results leads to the conclusion that all samples have an orthorhombic crystal structure. XRD results confirmed that all samples maintained an orthorhombic crystal structure. However, significant XRD peaks indicated that Tb doping above 10% introduced impurities. Additionally, micromechanical studies demonstrated that hardness values in the plateau region consistently decreased as Tb and Zn doping ratios increased. A decrease in hardness values with increasing applied load, known as the indentation size effect (ISE), was also observed. Among the modeling techniques applied, the IIC model provided the best fit for the hardness test results.Web of Science Web of Science DESIGNING NOVEL NANOMATERIALS FOR Li-ION BATTERIES: A PHYSICO-CHEMICAL STUDY THROUGH HYDROGEN-POWERED HORIZONS(2024.01.01) Mollaamin, F.; Monajjemi, M.This research work intends to represent a comprehensive investigation on hydrogen grabbing by Si5O10-Ge5O10 was carried out including using density functional theory (DFT) computations. The data represents that if silicon elements are replaced by germanium, the H-grabbing energy will be ameliorated. Electromagnetic and thermodynamic properties of Si5O10-Ge5O10, Li2[Si5O10-Ge5O10] and nanoclusters have been evaluated. The hypothesis of the hydrogen adsorption phenomenon was confirmed by density distributions of charge density differences (CDD), total density of states (TDOS) and localized orbital locator (LOL) for hydrated nanoclusters of H2[Si5O10-Ge5O10] and Li2H4[Si5O10- Ge5O10]. The fluctuation in charge density values demonstrates that the electronic densities were mainly located in the boundary of adsorbate/adsorbent atoms during the adsorption status. Therefore, by combination of Si5O10 and Ge5O10, it can be concluded that Si5O10-Ge5O10 nanocluster might be appropriate candidate for hydrogen storage in transistors. The fluctuation in charge density values demonstrates that the electronic densities were mainly located in the boundary of adsorbate/adsorbent atoms during the adsorption status. As the advantages of lithium over Si/Ge possess its higher electron and hole motion, allowing lithium instruments to operate at higher frequencies than Si/Ge instruments.Web of Science Wind speed prediction by utilizing geographic information system and machine learning approach: A case study of Karabük province in Türkiye(2024.01.01) Gürsoy, E.; Gürdal, M.; Gedik, E.This study analyzed wind speed data for years in Karab & uuml;k province, T & uuml;rkiye, using an Artificial Neural Network (ANN) with a Multilayer Perceptron (MLP) feed-forward network. The Bayesian Regularization algorithm was employed, a well-known training algorithm for Multi-Layer Perceptron (MLP) networks. The study investigated the relationship between wind speed and various meteorological parameters such as month, air temperature, relative humidity, and air pressure. The results obtained from the ANN model provided a reliable methodology for predicting future wind speed values in Karab & uuml;k province. To evaluate the performance of the ANN model, metrics such as Mean Absolute Error (MAE), Average Relative Deviation (ARD), Mean Squared Error (MSE), and R-squared (R2) were utilized. The ANN model demonstrated its efficacy by revealing the highest average wind speeds of 2.7 m/s in Safranbolu province during August, with corresponding MAE, ARD%, MSE, and R2 performance metrics of -0.029, -0.380%, 0.0028, and 0.999, respectively. The maximum measured and predicted Mean Wind Speed (MWS) values were identified in different months across various locations, specifically in August for Eflani, July for both Eskipazar and Karab & uuml;k CC and September for Safranbolu. Notably, the highest recorded MWS was observed at 42.8 m/s in Eskipazar during July, while the lowest MWS was recorded at 16.4 m/s in Eskipazar in October. Besides, by employing Geographic Information System (GIS) analysis, the average wind speeds were ranked for different districts, with Safranbolu, Eflani, Eskipazar, and Karab & uuml;k CC having the highest to lowest wind speeds, respectively.Web of Science Effects of Adding Fe2O3 and Fe3O4 Nanoparticles to Soil on Germination and Seedling Characteristics of Oriental Beech(2025.01.01) Sevik, H.; Ozel, H.U.; Yildiz, Y.; Özel, H.B.Effects of Fe-based nanoparticles (Fe2O3 and Fe3O4) on germination parameters were studied for some seedling characteristics of Oriental beech ( Fagus orientalis) seeds. Fe2O3 and Fe3O4 nanoparticle applications were made at concentrations of 400, 800, 1200, 1600, and 2000 mg/L on Fagus orientalis seeds collected from 10 different populations, and some germination and seedling characteristics were evaluated. Preliminary results generally indicated that low-dose nanoparticle applications positively affected germination and seedling characteristics, while increases in doses led to decreases in these parameters. Values obtained from high-dose nanoparticle applications were generally lower than those from the control group. The iron nanoparticles affected the parameters to different extents, Fe2O3 nanoparticles showed a significant positive effect on germination rate and radicle length, while exhibiting a significant negative effect on germination percentage and plumule length. The populations least affected by high- dose iron nanoparticle applications were Bursa Inegol, Karabuk-Yenice, and Ordu Akkus, while the most affected were the Bartin-Kumluca and Kahramanmaras-Andirin populations.Web of Science Evaluation of β-hydroxybutyrate, calcium, and non-esterified fatty acids at day one postpartum in predicting the risk of diseases in dairy cows(2024.01.01) Safak, T.; Durukan, E.; Yilmaz-Koc, O.; Risvanli, A.; Soyturk, B.I.; Bayraktar, M.In this study, the usability of calving type, non-esterified fatty acids (NEFA), beta-hydroxybutyrate (BHB), and calcium (Ca) concentrations in predicting postpartum diseases was examined. For this purpose, 120 Holstein cows were used in the study. These cows were divided into two subgroups according to the calving type: unassisted parturition (eutocic, n = 58) and assisted parturition (dystocia, n = 62). Cows were followed for 15 days postpartum. Diseases of retained foetal membranes (RFM), metritis, and clinical mastitis that developed in the postpartum period were recorded. Then, NEFA, BHB, and Ca concentrations were measured in blood samples collected at parturition from cows with RFM (n = 19), metritis (n = 34), clinical mastitis (n = 20) and cows that did not develop the disease (n = 47). Our results show the decreased Ca concentration to be positively associated with the risk of mastitis (P < 0.001, odds ratio [OR] 4.599), metritis (P = 0.008, OR 4.286), and RFM (P < 0.001, OR 5.016); and increased BHB concentration to be positively associated with the risk of metritis (P = 0.002, OR 4.069) and RFM (P < 0.001, OR 9.498). The results of the study indicated that low Ca and high BHB concentration at parturition could negatively affect the productive efficiency of dairy cows.Web of Science Hopf structures on closure spaces(2024.01.01) Demiralp, S.; Ege, O.This study extends algebraic perspectives to non-topological closure spaces by introducing Hopf structures. We define closure Hopf spaces and groups, investigate their properties, and explore homotopy theory within this framework. Contravariant functors are established between the homotopy category of closure Hopf groups and the category of groups. We also introduce the concept of sub-CH groups for analyzing similar algebraic properties within CH group subsets. This research significantly advances our understanding of algebraic structures in closure spaces, and broadening the scope of mathematical exploration in this field.