Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(117)
- Kaya, Yunus(51)
- Şahin, Engin(48)
- İspirli, Hümeyra(47)
- Özen, Soner(46)
- Şenay, Volkan(45)
- Pat, Suat(44)
- Can, Zehra(39)
- Bayraktar, Bülent(37)
- Bayram, Sinan(37)
- Korkmaz, Şadan(36)
- Cuce, Erdem(35)
- Ecem Bayram, Nesrin(33)
- Kutlu, Naciye(33)
- Yilmaz, Mustafa Tahsin(32)
- Artar, Musa(31)
- Ertugrul, Mehmet(30)
- Öner, Erdal(30)
- Ayata, Ümit(29)
- Hasar, Ugur Cem(29)
- Esmer, Yusuf(28)
- Mercan, Emin(27)
- Cuce, Pinar Mert(26)
- Özdemir, Akın(25)
- Çolak, Murat(24)
- Bayram, Ozkan(23)
- Kamiloğlu, Aybike(23)
- Sert, Durmuş(22)
- Ayazoglu, Rabil(21)
- Abdioglu, Murat(20)
- Bayram, Nesrin Ecem(20)
- Kadakal, Mahir(20)
- Kara, Yakup(20)
- Kizil, Hamit Emre(20)
- Tozlu, Alperen(20)
- Birinci, Ahmet(19)
- Gerçek, Yusuf Can(19)
- Battal, Fetullah(18)
- Dirican, Ebubekir(18)
- Ergün, Mustafa(18)
Yayınlar
- MakaleAçık Erişim2025Scopus SJRQ1From stress to screen: family factors on the path to problematic media use in children aged 4–11
Yayla, İbrahim Erdoğan; Makas, Samet; Yıldırım, Selami; Dombak, Kübra; Çelik, Eyüp
Objective: Today, the rapid development of digital technologies fundamentally transforms how children interact with media. This research examines the mediating roles of parenting stress and problematic media use in children on the relationship between digital parenting awareness and family harmony. Methods: The data for this study were obtained from 502 parents with children aged 4–11 years. Participants’ daily screen time was 1–2 h (55.8%), 2–3 h (26.9%), 3–4 h (12%), 4+ h (5.4%). Convenience sampling was the method employed for the present study. Correlation analysis and structural equation modeling were performed to analyze the data. Results: The correlation analysis concluded that all variables were interrelated. Furthermore, the structural equation model demonstrated that parenting stress and problematic media use mediated the relationship between digital parenting awareness and family harmony. Conclusion: This study has contributed to understanding the relationship between parenting stress and problematic media use in childhood, as well as the variables that mediate this relationship. It has provided a new perspective on the variables that should be focused on in preventing and intervening in children’s problematic media use behaviors. Practically, the research results provide a valuable reference for university educators, assist school counselors in reducing students’ problematic media use behaviors through education, and help parents improve their skills in raising their digital awareness.
AtıfScopus3WoS3OpenAlex5
İncele - MakaleYalnız künye2025Scopus SJRQ2THE REFLECTIONS OF THE DISASTER OF THE CENTURY IN THE GRAND NATIONAL ASSEMBLY OF TÜRKİYE
Kan, Muhammed Enes
The aim of this study is to conduct an in-depth analysis of the debates held in the Grand National Assembly of Türkiye (TBMM) following the earthquakes centered in Kahramanmaraş on February 6, 2023. To this end, all parliamentary sessions held between the date of the earthquake (February 6, 2023) and the general parliamentary elections (May 14, 2023) were obtained from the official website of the TBMM and systematically archived. During this period, the Assembly convened a total of 24 sessions. The official transcripts of these sessions constituted the dataset for the study. The data were analyzed using the content analysis method, a widely employed technique in qualitative research, with the assistance of the NVIVO 14 software package. Within this framework, the most frequently discussed topics in the TBMM regarding disaster management in the post-earthquake period were identified as follows: the declaration of a state of emergency (OHAL), allegations concerning the Disaster and Emergency Management Authority (AFAD) and the Turkish Red Crescent (Kızılay), the deployment of the Turkish Armed Forces (TSK) in search-and-rescue efforts, the continuity of education, and issues related to refugees.
- MakaleAçık Erişim2025Scopus SJRQ2Performance of organic manures alone or combined with chemical fertilizers in increasing growth, yield, and nutritional quality of potatoes in the Eastern part of Türkiye
Kurt, Gunes; Ozturk, Erdogan; Sefaoglu, Fırat; Gul, Volkan; Toktay, Zehra; Mosber, Goltay
This study aimed to determine the effects of different types of fertilizers (organic and inorganic fertilizers) on plant growth, yield, and yield components of potatoes grown in the high-altitude plateau of eastern Türkiye in 2017 and 2019. In the experiment, single or combined doses of nitrogen (N; as ammonium sulfate) and phosphorus (P; as triple super phosphate) as inorganic fertilizers and leonardite (L) and vermicompost (V) fertilizers as organic fertilizers were used. In both years, different fertilizer treatments significantly affected plant growth, yield, and yield components. Tuber yield per hill (941.0 g), marketable tuber yield (32.71 t ha−1), total tuber yield (37.84 t ha−1), specific gravity (1. 077 g cm−3), chip productivity (35.9%), starch (13.03%) and protein (11.0%) ratios increased when N fertilizer was used in combination with vermicompost or leonardite. N fertilizer combined with V or L fertilizer increased tuber yield under harsh continental climates, short growth periods, and high altitudes.
AtıfScopus3WoS2OpenAlex3İncele - Kitap BölümüAçık Erişim2025Lipid-protein interactions in food systems: Mechanisms, thermodynamics, and analytical approaches
Öztekin, Sebahat; Uzun, Suzan; Köroğlu, Deniz Günal; Bilgin, Ayşenur Betül; Gökşen, Gülden
This chapter provides a comprehensive overview of lipid-protein interactions in food systems, focusing on their physicochemical mechanisms, analytical techniques, and implications for food quality, nutrition, and functionality. These interactions, governed by hydrophobic, electrostatic, hydrogen bonding, and van der Waals forces, are influenced by multiple factors such as pH, temperature, and ionic strength during food processing. Both experimental techniques, including spectroscopy (fluorescence, CD, FTIR), calorimetry (ITC, DSC), microscopy (CLSM, SEM), and gel electrophoresis, as well as computational approaches such as molecular dynamics simulations and molecular docking are used to characterize the structural, thermodynamic, and dynamic properties of these interactions. Lipid-protein interactions affect key lipid characteristics such as chemical stability, solubility, and gastrointestinal behavior, while also modulating protein properties like digestibility, thermal stability, gelling, foaming capacity, phosphorylation, and aggregation. Moreover, these interactions can influence health-related outcomes, including lipid oxidation, cholesterol metabolism, and allergenicity. Understanding these interactions provides valuable insights for the development of novel and functional food products with enhanced stability and bioavailability. The dynamic nature of lipid-protein interactions necessitates continued research using integrated experimental and computational approaches to optimize their role in modern food systems.
- MakaleAçık Erişim2025Scopus SJRQ3The Comparison of Pre-Service Science Teachers' Drawings of the “Universe” Concept and the Universe Visuals They Created from Artificial Intelligence
Bostan Sarioğlan, Ayberk; Gürbüz, Fatih; Yakupoğlu, Melike
As the use of artificial intelligence increases in areas where people are active in our daily lives such as education and health, the comparison of human and artificial intelligence has started to be discussed. Many artificial intelligence programmes are commanded by humans and artificial intelligence creates products in line with expectations. In this study, it is aimed to compare the drawings of pre-service science teachers about the concept of universe with the universe visuals created by artificial intelligence. Case study was selected as the research model. The study group consisted of 24 pre-service science teachers studying in the 2nd and 4th grades of science teaching. The worksheet prepared by the researchers and the received expert opinion was used as a data collection tool. During the application process, pre-service teachers made drawings related to the concept of universe and described these drawings during two lesson hours. Then, they made drawings related to the concept of universe of artificial intelligence with the descriptions they entered into Microsoft Bing Search application. As a result, it was determined that pre-service teachers had different views in their drawings about the concept of universe. It is seen that the drawings of the pre-service teachers about the concept of universe and the visuals created by artificial intelligence are mostly like each other. In half of the drawings, the universe drawings of the pre-service teachers were more comprehensive, while in half of the drawings, artificial intelligence made more comprehensive drawings. Based on this result, it can be said that human perception and artificial intelligence products are in parallel with each other. Various suggestions were presented in line with the results of the study.
- MakaleYayıncıda açık erişim2025Scopus SJRQ4ANALYSIS OF PESTICIDES, ANTIBIOTICS, AND HEAVY METAL LEVELS IN HONEY PRODUCED IN THE BAYBURT AND UPPER ÇORUH VALLEY REGIONS OF TÜRKİYE; [Türkiye'nin Bayburt ve Yukarı Çoruh Vadisi Bölgelerinde Üretilen Ballarda Pestisit, Antibiyotik ve Ağır Metal Düzeylerinin Analizi]
Özdemir, Mustafa; Yildizlar, Osman
This study investigates pesticide, antibiotic, and heavy metal levels in Bayburt and the Upper Çoruh Valley honey. Thirteen honey samples were collected from different apiaries managed by stationary and migratory beekeepers. These samples were analysed for heavy metals (Fe, Cu, Zn, Cd, Pb), antibiotics, pesticides, and chemical residues such as naphthalene. The results revealed that lead (Pb) levels exceeded international food safety standards in 2 honey samples, while pesticide residues were detected in 5 samples. Additionally, antibiotic residues were found in 6 samples, including sulfamethazine, tetracycline, and streptomycin. However, no naphthalene was detected in any of the samples. These findings highlight the importance of stricter regulations and monitoring systems to control chemical use in beekeeping practices. Enhancing awareness among beekeepers regarding the risks associated with pesticide and antibiotic use is crucial for improving honey quality and ensuring the health of beekeepers and consumers. The adoption of safer practices and adherence to guidelines are necessary to mitigate these health hazards.
AtıfOpenAlex1TR Dizin2
İncele - MakaleAçık Erişim2025Scopus SJRQ3Effect of Moringa oleifera Oil Extract on Adipokine (Apelin, Visfatin and Nesfatin-1) and Cardiac (cTnI) Response in Streptozotocin-induced Rats
Orkun Erkiliç, Tuğçe; Bayraktar, Bülent
Background: The aim of this study was to investigate the effects of Moringa oleifera extract (MOE) added to the diets at different amounts on Adipokine (apelin, visfatin and nesfatin-1) and Cardiac (cardiac troponin I (cTnI)) Response in Streptozotocin (STZ)-induced Type 1 diabetic rats. Methods: In this study, 64 adult male Wistar albino rats, aged between 8-10 weeks, were used. Eight (8) groups were created, with 8 rats in each group: Control (C), M100 (MOE 100 mg/kg group given with oral gavage route of administration (OGRA), M200 (MOE 200 mg/kg group given with OGRA), M300 (MOE 300 mg/kg group given with OGRA); STZ 55 mg/kg i.p administered group, Diabetic control group (DC), DM100 (D+100 mg/kg MOE), DM200 (D+200 mg/kg MOE), DM300 (D)+300 mg/kg MOE). The study lasted a total of 31 days, including adaptation (7 days), induction of diabetes (3 days) and trial period (21 days). Blood samples were taken from the tail vein (Vena caudalis) of all subMects on days 0 and 21 of the study. Apelin, visfatin, nesfatin-1 and cTnI levels in the serum samples were measured by ELISA method. Result: In the present study, the most significant increase in mean serum apelin, visfatin, nesfatin-1 and cTnI levels in diabetes groups was observed in DC groups, while the most significant decrease due to MOE addition was observed in DM200 groups (p<0.01). As a result, it was concluded that MOE may be safe and beneficial when administered at a dose of 200 mg/kg in rats with STZ-induced diabetes.
AtıfScopus3WoS4İncele - MakaleAçık Erişim2025Scopus SJRQ1Optimization of Hemp Seed (Cannabis sativa L.) Protein Extraction and Glycation Conditions by Response Surface Methodology: Physicochemical, Functional, and Thermal Characteristics
Yüzer, Elvan; Kutlu, Naciye; Yüzer, Mustafa Onur
In this study, first, optimization using the response surface method was implemented to obtain the highest yield of protein isolate from defatted hemp seed under different extraction conditions. Optimum extraction conditions were determined with 0% salt concentration, 12 pH value, and 49°C temperature. The protein isolate produced under optimum conditions was subjected to the glycation process, and the glycation conditions were also optimized. The optimum conditions for glycation were determined as a protein isolate: sugar ratio of 1.6:1, temperature of 60°C, and time of 90 min, providing the most suitable glycation degrees and browning indices. There was no statistical difference between the glycated protein isolate obtained under these conditions and the nonglycated protein isolate in terms of emulsifying activity index and emulsion stability index. For total phenolic–flavonoid compounds and antioxidant activity, the sugar complex caused a decrease in these values. In addition, there was a high positive correlation between bioactive compounds. SEM micrographs showed relationships between hemp seed protein isolate and sugar, and these interactions led to a spongy three-dimensional microstructure. When the FTIR results were analyzed, the glycated isolate had stronger absorption at 3300–3200 cm−1 compared to the nonglycated isolate. In conclusion, this study reports important findings in terms of functional and characteristic properties of how monosaccharides affect glycation.
AtıfScopus1WoS1İncele - MakaleYalnız künye2025Scopus SJRQ2A novel exopolysaccharide from cold-adapted yeast Rhodotorula glutinis, along with structural, rheological, antioxidant, and antibiofilm properties
Oztekin, Sebahat; Dikmetas, Dilara Nur; Karbancıoglu-Guler, Funda
In the present study, a novel exopolysaccharide EPS-BMD26 produced by cold-adapted yeast Rhodotorula glutinis was structurally examined, along with its rheological, antioxidant, and antibiofilm properties. High-performance liquid chromatography (HPLC) analysis revealed glucose and galactose as two monosaccharide constituents. The functional groups within the EPS-BMD26 structure were detected by Fourier transform infrared (FT-IR) spectroscopy. The 1H and 13C nuclear magnetic resonance (NMR) spectra of EPS-BMD26 also confirmed its β-D-glucan type with galactose residues with an average molecular weight of 118 kDa. Differential scanning calorimetry (DSC) analysis revealed that EPS-BMD26 had a high level of thermal stability, up to 326.16 °C. Scanning electron microscopy (SEM) analysis demonstrated that EPS-BMD26 had a porous microstructure with fissures. X-ray diffraction (XRD) analysis revealed its semi-crystalline nature. EPS-BMD26 showed moderate and concentration-dependent antioxidant potential recruiting different methods, including •OH, DPPH•, CUPRAC, and ABTS radical scavenging activities. Water-soluble EPS-BMD26 exhibited high water holding capacity of 190 ± 0.22% with a water solubility index of 60.6 ± 8.3%. At 1.25 mg mL-1, EPS-BMD26 inhibited biofilm formation of Staphylococcus aureus ATCC 25923 by 79.5%. Rheological characterization revealed that the aqueous solution of EPS-BMD26 had shear thinning and pseudoplastic behavior. Given these properties, EPS-BMD26 may be a promising bio-hydrocolloid, antibiofilm agent, and food additive for industrial applications.
AtıfScopus15WoS15OpenAlex17İncele - MakaleAçık Erişim2025Scopus SJRQ1Investigation of the phonological awareness of A1 level students learning Turkish as a foreign language
Güngör, Haluk; Koçak, Aslı; Maden, Sedat
Phonological awareness is pivotal in language learning, influencing speaking, writing, and listening abilities. Identifying factors that affect reading development is crucial for effective language instruction. This study explores the phonological awareness of A1-level learners of Turkish as a foreign language (TFL), examining how native language backgrounds impact this foundational skill. Ninety-three participants, whose native languages include Arabic, Indonesian, French, Russian, and Kazakh, were assessed using the Phonological Awareness subtest from the Early Literacy Test (EROT). Data analysis employed non-parametric statistical methods, specifically the Mann-Whitney U and Kruskal-Wallis tests. Results revealed no statistically significant relationship between gender and phonological awareness, although female participants exhibited higher average scores than males. Among native language groups, Kazakh speakers achieved the highest phonological awareness scores, whereas Indonesian speakers scored the lowest. These findings indicate that a learner’s native language significantly influences their phonological awareness in Turkish. Despite its limited scope, this pilot study underscores the essential role of phonological awareness in developing comprehensive language skills in TFL learners. l.
- MakaleAçık Erişim2025Scopus SJRQ3Chemical composition of essential oils and comparative analysis of enzyme inhibitory, antioxidant and antimicrobial activities in essential oils of endemic Gelasia sericea (Aucher ex DC.) Zaika, Sukhor. & N. Kilian
Fidan, Muhammed Said; Baltacı, Cemalettin; Akmeşe, Osman; Sefalı, Abdurrahman; Aygül, İmdat; Öz, Mehmet
In this study, essential oil from the aerial parts of Gelasia sericea (Aucher ex DC.) Zaika, Sukhor. & N. Kilian was extracted via hydrodistillation using a Clevenger apparatus. GC-MS/FID analysis determined aldehydes (28.31%) as the dominant group, with eucalyptol (8.71%) as the main constituent. Antioxidant activities were exhibited using DPPH, ABTS, and FRAP assays, with the essential oil demonstrating relatively higher antioxidant properties. The essential oil also showed higher levels of bioactive components, including total antioxidant capacity (160.26 mg AA eq./100 mL), total phenolic content (21.57 mg GA eq./100 mL), and total flavonoid content (14.85 mg QE eq./100 mL). While G. sericea essential oil demonstrated some antioxidant activity, it was significantly lower compared to the reference standard ascorbic acid (AA). The antimicrobial results showed relatively higher antimicrobial activity compared to most bacterial and fungal strains, as evidenced by lower MIC and MBC values and larger inhibition zones. Nevertheless, chloramphenicol (CH) and nalidixic acid (NA) continually showed superior antimicrobial efficacy, with the lowest MIC and MBC values and the largest inhibition zones. The essential oil also demonstrated potent enzyme inhibitory activity, especially against CA-II, AChE, and BChE, with the lowest IC50 value observed for CA-II, highlighting its potential as a potent enzyme inhibitor. However, the essential oil exhibited comparatively greater inhibition against AChE, BChE and α-amylase but was less effective overall. These findings suggest that the G. sericea essential oil has important antioxidant potential and enzyme inhibitory activity, while the essential oil shows varying efficacy across different enzymes.
AtıfOpenAlex1İncele - Kitap BölümüAçık Erişim2025Beyond Algorithms: Unveiling the Intersection of AI Ethics, Citizenship Education, and Social Studies
Yetişensoy, Okan; Zajda, J; Rapoport, A
The rapid rise of artificial intelligence (AI) in recent years has led to various positive transformations in everyday life. However, this rise has also brought about the emergence of some ethical issues that raise concerns in society. Examples of these ethical issues include the manipulative or harmful use of AI, privacy concerns, bias, discrimination, and lack of transparency and accountability. AI ethics, on the other hand, represent a set of guiding principles that stakeholders should adopt to ensure the responsible development and utilization of AI technologies. Considering that young people are potential users and developers of AI, teaching them these principles from an early age can be seen as a natural part of citizenship education. Thus, incorporating AI ethics-related content into the curriculum of various K-12 courses can be regarded as an effective approach. This chapter argued that social studies, with its focus on fostering effective citizens for the future, will emerge as a crucial application area for this approach. At this point, the relevant study aims to explore the intersections between AI ethics, citizenship education, and social studies. It is believed that the study will make a significant contribution to the literature by revealing the new dynamics created by AI in citizenship education and demonstrating the potential role that the social studies curriculum can play in this regard.
AtıfScopus2WoS2OpenAlex2İncele - MakaleAçık Erişim2025Scopus SJRQ1Preschool children's social skills, problem behaviors, academic self-esteem and teacher-child relationship: a serial mediation model
Tutkun, Cansu; Eskidemir Meral, Seda
Introduction: Research has shown that children's social skills have effects on their problem behaviors. However, the mechanisms through which social skills contribute to reducing problem behaviors need further clarification. Methods: This study examined the relationship between preschool children's social skills and problem behaviors, as well as the independent and serial mediating roles of academic self-esteem and teacher-child relationship in this relationship. The study included 382 children aged 3–5 years, randomly selected in Türkiye. Results and discussion: As a result of the study: (1) there was a significant and negative relationship between problem behaviors and social skills, academic self-esteem and teacher-child relationship; (2) the mediating role of academic self-esteem and teacher-child relationship in the relationship between social skills and problem behaviors was supported; and (3) the serial mediating role of academic self-esteem and teacher-child relationship in the effect of social skills on problem behaviors, respectively, was found. These findings indicated that children's social skills may help to increase their academic self-esteem, improve the teacher-child relationship, and thus reduce their problem behaviors. Therefore, these results have important implications for designing interventions to increase preschool children's social skills, academic self-esteem, and teacher-child relationship, as well as to prevent the early development of problem behaviors.
AtıfScopus5WoS4OpenAlex5İncele - MakaleAçık Erişim2025Scopus SJRQ1Soil Permittivity Extraction by Time-Domain Free-Space Calibration-Free Microwave Measurements With No Thickness Information
Hasar, Ugur Cem; Korkmaz, Huseyin; Kaya, Yunus; Iliev, Teodor
An attractive microwave free-space method is proposed for permittivity extraction of soil samples using calibration-free time-domain measurements. Different from other similar methods in the literature which use the layer-stripping approach in the forward direction in the extraction process, its formalism is based on the layer-stripping approach in the backward direction, whereby allowing extraction of permittivity from interfacial reflection coefficient only without resorting to any thickness information, especially useful for time-domain analysis of multilayer structures having multiple reflection terms. Effects of angle misalignment, loss, and surface roughness on the extraction performance of the proposed method (PM) are analyzed by numerical examples. Permittivity measurements of three low-loss flat solid samples [polypropylene (PP), polyethylene (PE), and polyoxymethylene (POM)] were first performed by a free-space setup operating over 1–18-GHz frequency range to validate our methodology and compare its accuracy against other similar methods in the literature. Thereafter, permittivity measurements of two soil samples sieved with similar and different sizes (coarse- and fine-grained soil samples) by the same free-space setup were then considered to assess the applicability and performance of our method for electromagnetic property analysis of homogeneous and partially inhomogeneous soil samples.
AtıfScopus9WoS6OpenAlex8İncele - MakaleAçık Erişim2025Scopus SJRQ3Essential Parameters for the Reconstruction of Society: A Critical Analysis of Sūrat al-Ḥujurāt, Verse 10
Aras, Zakir
In the tenth verse of Sūrat al-Ḥujurāt, the fundamental parameters set by Allah for the structuring of Muslim communities can be delineated as the following: brotherhood, reformation, nation, identity, justice, piety, and community. A close analysis of the verse reveals a hierarchy among these parameters. While the brotherhood forms the first layer of the pyramid, the final layer is the community. The supporting layer that sustains all other levels is the layer of justice. At a fundamental level, the ultimate goal of these layers is to attain Allah’s mercy. Consequently, at the pinnacle of these layers lies the pyramid of mercy. The study concludes that there are no clear demarcation lines among these layers; instead, they are interconnected and interdependent. This analysis provides important clues for strengthening the social and moral structure of Muslim societies. The hierarchical structure of these parameters and the relationships between them play a key role in ensuring social solidarity and justice.
- MakaleAçık Erişim2025Scopus SJRQ3Determinants of foreign direct investment in the textile sector: a research with IT2 Fuzzy TOPSIS methodology; [Determinanți ai investițiilor străine directe în sectorul textil: o cercetare cu metodologia IT2 Fuzzy TOPSIS]
Şahin, Recep Uğurcan; Gökhan, Nalbant Kemal; Keskin, Abdulkadi̇R; Özdemir, Yavuz; Keskin, Abdurrahman
This study aims to identify the determinants of foreign direct investment (FDI) in the textile sectors in Poland, Romania, Hungary, Slovakia, Czechia and Türkiye. The study assesses these criteria through paired comparisons conducted by experts who have a minimum of 10 years of professional experience in the field and analyses them using the IT2 Fuzzy Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS) technique. According to the findings, the criteria with the highest degree of importance are national security, inflation rate, patent and trademark protection, transportation networks and market size. On a country-by-country basis, Poland has a higher investment attraction potential compared to other countries according to the criteria of openness, corruption, legal regulations and privatization policies, import and export quotas, education and professional status, renewable energy resources, sustainability, intellectual property protection, patent and trademark protection and national security. Hungary scores highest on import and export quotas and tax rates, while Slovakia stands out on import and export quotas and waste management/environmental regulations. Romania scores highest on profitability and debt financing, labour costs and import and export quotas. Czechia scores highest on inflation rate, political stability, legal regulations and privatization policies, economic incentives, general trade policies, import and export quotas and cultural situation and lifestyle. Türkiye scores the highest in terms of market size, GDP growth rate, access to raw materials and markets, technological infrastructure and innovation, transport networks, production sites, energy production, import and export quotas and business-friendly approaches.
AtıfScopus1WoS1OpenAlex2İncele - MakaleAçık Erişim2025Scopus SJRQ3Effect of Fe Amount on Microstructure and Fluidity of A356 Alloy
Durmus, M.; Dispinar, D.; Gavgali, M.; Colak, M.
The most important factor affecting the production of quality parts with aluminum alloys is the quality of molten metal. One of the determining factors in molten metal quality is the minimization of trace impurity elements in the alloy. One of the most harmful impurities among these elements is Fe, and its amount is a determining factor in its negative effect. It is known that Fe negatively affects the quality of aluminum, causing a decrease in mechanical properties. Most of the Fe in the alloy forms intermetallic from needle-like to complex Chinese-script structures. In this study, carbon steel and stainless-steel rods were immersed in the liquid metal at casting temperatures of 700°C and 750°C in A356 aluminum casting alloy and were subjected to diffusion for 1, 2 and 5 hours. Subsequently, a 4-channel flow test mold with various section thicknesses was used. All samples were measured by measuring the liquid metal advance distances of all sections in mm. Then, microstructure analyses were performed on the obtained sections. As a result, it is observed that as Fe diffusion increases, liquid metal advancement distances decrease and Fe intermetallics form in the microstructure. © The Author(s) 2025. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
- MakaleAçık Erişim2025Scopus SJRQ3Online software for a new risk assessment method in occupational health and safety: RSCAL
Ateş, Fatih Mehmet; Doğan, Ömer
Risk assessment is necessary for the safety of employees in the workplace. Risk assessment methods contain some deficiencies arising from the persons performing the analysis. In order to partially overcome this situation, a risk assessment method has been developed by the authors by utilizing the data on occupational accidents in Turkey. In the method, Occupational Health and Safety Professionals who will perform the risk assessment can calculate the risk score without giving a numerical value for any hazard and corresponding risk that they identify in the workplace. In the study, a user-friendly online software called RSCAL by the authors, with a web address of https://rscal.com.tr/, which can meet all the above-mentioned requirements and calculate risk scores for workplaces serving in all types of sectors, has been developed. Through this online application, the identified hazard, risk and exposures of the business to be analyzed can be selected; the necessary corrective and preventive actions can be written by the user and then the risk score can be calculated. After that, all hazards specific to the enterprise can be meticulously identified and the risk assessment of the enterprise can be made by calculating the risk scores. This risk assessment can also be printed out in excel file format. In the future, parameters such as the deadline for each hazard, the legal requirement or standard from which the corrective preventive action to be taken arises can be added to the RSCAL calculation tool.
AtıfScopus1İncele - MakaleAçık Erişim2025Scopus SJRQ3Phytochemical analysis and biological evaluation of essential oils and extracts from Heracleum pastinacifolium subsp. incanum (Boiss. & A.Huet) P.H.Davis, an endemic plant from Turkey
Yuca, Hafize; Sefalı, Abdurrahman; Aydın, Bilge; Karadayı, Mehmet; Gülşahin, Yusuf; Yazıcı, Ayşenur; Karakaya, Songül; Demirci, Betül; Çoban, Furkan; Özdemir, Erkan
Essential oil content of and phenolic compounds flower-fruit, root, and aerial parts of Heracleum pastinacifolium subsp. incanum were analysed by GC/MS and LC/MS methods, respectively. Antidiabetic, anticholinesterase, and antioxidant activities of flower-fruit, root, aerial parts methanol extracts were evaluated. Apiole (35.0%), myristicine (72.2%), and myristicine (15.1%) were found as major compounds of fruit-flower mixture, root, aerial part essential oils, respectively. Hesperidin was found the highest amount in aerial part and flower-fruit extracts with 8904.2621 ng/mL and 11558.3634 ng/mL values, respectively. Fruit-flower extract showed the highest activity against α-glucosidase (24%). Root extract demonstrating the highest activity (18%) against AChE enzyme. Flowers-fruits mixture methanol extract had a higher % inhibition value on ABTS·+ and DPPH•. Flowers-fruits mixture methanol extract was rich in total phenol, total tannin, and protein content. All the extracts were determined as genetoxically safe according to the results of Ames/Salmonella, Escherichia coli WP2 and Allium cepa assays.
AtıfScopus1WoS2OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ1Emotion regulation skills, brain-derived neurotrophic factor, cortisol hormone levels in primary school students in Türkiye: a cross-sectional and correlational analysis study
Kırbaş, Zila Özlem; Bayraktar, Bülent; Odabaşi Aktaş, Elif
Background: Hormones are molecules that contribute significantly to mental and physical health due to their role in emotion regulation (ER) processes. However, the role and effect of hormones on the ER has not yet been fully elucidated. In this study, it was aimed to examine the salivary Brain-derived neurotrophic factor (BDNF) and cortisol hormone response to support ERS in primary school students depending on some parameters. Method: This cross-sectional and correlational study was conducted in the Eastern Black Sea Region of Türkiye between April 2023 and June 2023. In the sample selection, after the number of students was determined in proportional stratification, the sample selection method was made by simple random selection from each class list, first according to the school and then the grade level of each school. A total of 177 healthy students between the ages of 8 and 10 who attended these schools, were allowed to participate in the research by their families, and were volunteers, were included in the study. Data were collected using the Personal Information Form and the Emotion Regulation Scale for Children and saliva collection cups. Human-specific Brain-derived neurotrophic factor ELISA Kit (BT LAB, Cat.No E1302Hu, CHINA) for measuring BDNF levels in saliva; In measuring the level of cortisol hormone in saliva, Human Cortisol ELISA Kit (BT LAB, Cat.No E 1 003Hu, CHINA) was used in accordance with the procedure specified in the manufacturer’s catalogue. Data were evaluated using the SPSS 26.0 for Windows (SPSS, Chicago, Il, USA) package program. Independent Samples Test and One-Way ANOVA test, correlation and Multiple Linear Regression analysis were used to evaluate the data. P <.01 and p <.05 significance levels were used as statistical significance values. Results: A statistically significant correlation was found between the mean total score of the Emotion Regulation Skills Scale for Children and the mean level of salivary BDNF, and a negative correlation between the mean level of salivary cortisol (p˂0.01). Conclusions: Within the scope of the data obtained in our current study, BDNF levels were found to be high and cortisol hormone levels to be low in children with high ERS.
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