Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(67)
- Merdan, Mehmet(59)
- Duran, Celal(49)
- Ozdes, Duygu(46)
- Kaygusuz, Abdullah(45)
- Demir, Selim(37)
- Turan, Ibrahim(37)
- Karsli, Orhan(36)
- Öztürk, Serkan(35)
- Dokuz, Abdurrahman(34)
- Araz, Onur(32)
- Kandemir, Raif(31)
- Kulakaç, Nurşen(29)
- Sipahi, Ferkan(29)
- Arslan, Mehmet(27)
- Baltaci, Cemalettin(27)
- Baltacı, Cemalettin(27)
- Kurt, Kemal(27)
- Topal, Fevzi(27)
- Gücer, Mehmet Ali(25)
- Peker, Iskender(25)
- Aydin, Faruk(24)
- Bayrakdaroglu, Serdar(24)
- Maden, Nafiz(24)
- Ozturk, Samet(24)
- Vural, Alaaddin(24)
- Yolcu, Halil(24)
- Yücel, Cem(24)
- Aliyazicioglu, Yuksel(23)
- Kankal, Murat(23)
- Reis, Hatice Catal(23)
- Ürkek, Bayram(23)
- Günen, Mehmet Akif(22)
- Kurnaz, Muammer(22)
- Topal, Meryem(22)
- Karimullah, Suud Sarim(21)
- Uysal, Ibrahim(21)
- Ashyralyyev, Charyyar(20)
- Aydin, Aydanur(20)
- Bayraktar, Alemdar(20)
Yayınlar
- MakaleAçık Erişim2025Scopus SJRQ1The Memory Destruction and Reconstruction Games within the Scope of Persianization Politics in Iran
Dinç, Artum
This research examines how collective memory management has influenced the images, symbols, historical artifacts, names, and language of Turkish culture in Iran since 1925 and how Turks for anti-discrimination have responded. This study employed a qualitative research model, with data collected through a relevant literature review and interviews. The sample was selected from Turks who have expressed reactions to the Persianization process. The findings were obtained through open and axial coding of the collected data and an inductive inquiry strategy. The findings revealed that, in line with the assimilation (Persianization) policies implemented in Iran, historiography and memory management practices based on Persian nationalism have been perpetuated against Turkish identity and its collective memory. This process is carried out by erasure, forgetting, amnesia, annulment, obsoletion, abandoning, humiliating, and banning symbolic representations, historical artifacts, names, and the language belonging to Turkish culture. The findings also demonstrated that Turks have not remained passive in the face of these practices but have actively sought to commemorate and preserve their language, names, historical events, artifacts, and heroes through artistic events, ceremonies, sports competitions, new media, legal channels and protests. From the selective coding of the findings, it can be concluded that the management of collective memory based on essentialist, monist, exclusionary and supremacist Persian nationalism are nowadays being questioned and debated in intellectual discussion, political competition and everyday life scenes. It can be concluded that the attitude of the political authority is not towards recognizing ethnonational diversity and their rights in Iran, but towards maintaining uncertainty.
- MakaleAçık Erişim2025Scopus SJRQ1The Effect of Music on Fear and Anxiety of Children During Tomography: A Randomized Controlled Double-Blind Study
Kurudirek, Fatma; Demir Barbak, Zülbiye; Demir İmamoğlu, Zeynep; Çiftci, Kamile; Delice, Orhan
Aim: This study was conducted to determine the effect of a musical intervention during computed tomography (CT) on fear, anxiety and vital signs of children. Method: This randomized, double-blind controlled trial was conducted according to the Consolidated Standards of Reporting Studies (CONSORT) guidelines. The study sample included children aged between 6 and 10 years who met the inclusion criteria and underwent CT scan in the emergency department of a public hospital in eastern Turkey between 18 April and 20 May 2023. The research was completed with a total of 60 children, randomized to one of two groups. The nursing intervention of the study was playing music. Data were collected through face-to-face interviews using the Child and Family Information Form, the Children's Fear Scale (CFS), Children's Anxiety Meter-State (CAM-S) and the Vital Signs Monitoring Form (pulse, blood pressure and oxygen saturation). Ethical principles were followed in the research. Results: The level of fear, anxiety, pulse rate and respiratory rate of the children in the musical intervention group during CT scanning were lower than in the control group (p < 0.05). No difference was found between the groups in terms of oxygen saturation (p < 0.05). Conclusion and Recommendations for Implementation: The results of this study suggest that musical intervention during CT scanning in children is effective in reducing the level of fear and anxiety and stabilizing vital signs. By using such nonpharmacologic methods, nurses can provide support to children and alleviate emotional difficulties during procedures. Trial Registration: NCT06086509. Summary: What is already known about this topic? Music therapy is recognized as an effective nonpharmacologic intervention to reduce fear and anxiety in paediatric patients undergoing medical procedures. Previous studies have shown that musical intervention during CT scans can calm children, potentially reducing the need for sedation and improving compliance. Knowledge gaps remain regarding the specific effects of music on physiological parameters like pulse and respiratory rates during paediatric CT scans. What this paper adds? This study demonstrates that musical intervention during CT scans significantly reduces fear and anxiety levels in children aged 6–10 years. The research findings show that music intervention can also stabilize vital signs, such as pulse and respiratory rates, during CT scans, suggesting a relaxed physiological state. The results support the idea that incorporating music into paediatric imaging procedures can enhance patient comfort and improve the quality of the imaging process by encouraging children to remain still. The implications of this paper: Incorporating music therapy into routine paediatric imaging procedures can reduce anxiety, improve patient cooperation and potentially reduce the need for sedatives. Future research could explore the optimal types of music, volume levels and delivery methods to maximize the calming effects on children during various medical procedures. Training programs for paediatric healthcare providers can include education on the benefits of nonpharmacologic interventions, like music therapy, to reduce anxiety and improve patient outcomes in clinical settings.
AtıfScopus3WoS2OpenAlex3
İncele - MakaleAçık Erişim2025Scopus SJRQ2Effect of sodium pentaborate (B5H10NaO13) nanoparticle addition to oxide coatings grown on AZ31 magnesium alloy by micro arc oxidation method on mechanical, corrosion and adhesion properties of coatings; [Efecto de la adición de nanopartículas de pentaborato de sodio (B5H10NaO13) en los recubrimientos de óxido formados sobre la aleación de magnesio AZ31 mediante el método de Microoxidación por Arco, sobre las propiedades mecánicas, de corrosión y de adhesión de los recubrimientos]
Sukuroglu, Suleyman
AZ31 magnesium alloy is one of the lightweight metallic engineering materials that are widely used in many industrial areas such as aviation, space, automobile and electronics industries, biomedical applications, where structural weight reduction is at the forefront of design principles. This study focuses on the growth of MgO and MgO:B5H10NaO13 doped oxide coatings on the surface of AZ31 magnesium alloy by micro arc oxidation (MAO) method in order to improve its usage areas and lifetime in industrial applications, and to investigate the structural, morphological, adhesion and corrosion properties of the grown coatings. In the study, MgO coatings were grown by MAO method and MgO:B5H10NaO13 doped composite oxide coatings were grown by adding sodium pentaborate (B5H10NaO13) nanoparticles into the electrolytic solution in MAO method. The phase structure of the grown coatings was determined by X-ray Diffraction (XRD), microstructure by Scanning Electron Microscopy (SEM) and chemical composition by Energy Dispersive X-ray Spectroscopy (EDS). The hardness of MgO and MgO:B5H10NaO13 doped composite oxide coatings were determined by microhardness tester, the adhesion resistance with the base material was determined by Scratch Tester and the corrosion resistance was determined by potentiodynamic polarization tester. As a result, it was observed that dense and homogeneous coatings were grown on the surfaces of particle-added (MgO:B5H10NaO13) coatings, that porosity and pore sizes on the surfaces of the coatings were reduced, that microcracks were reduced, and that coatings with high bond strength with the base material were grown. It was also determined that the corrosion resistance of the coatings with particle addition (MgO:B5H10NaO13) was higher than the corrosion resistance of the coatings without particle addition (MgO).
AtıfScopus1OpenAlex1İncele - MakaleYalnız künye2025Scopus SJRQ3Cultural and Institutional Dimensions of Belarus–Iran Relations
Dinç, Artum
This article examines the cultural and institutional dimensions of Belarus–Iran relations from the 1990s to the present through a cultural sociology perspective. It explores how social institutions—including family, education, science and technology, media, diplomacy, religion, and economic frameworks—have shaped and been shaped by this bilateral relationship. The research situates Belarus–Iran ties within frameworks of cultural diplomacy, soft power, and constructivist international relations. The findings indicate that shared values (for example, traditional family norms and sovereignty), mutual educational and scientific exchanges, coordinated media narratives, religious and cultural interactions, and sanctions-driven economic collaboration have together fostered a unique cross-cultural partnership. The analysis highlights how cultural diplomacy and institutional cooperation underpin the alliance, offering insights into how two sanctioned, ideologically aligned states leverage culture and institutions to reinforce their strategic partnership.
- MakaleAçık Erişim2025Scopus SJRQ2Internal Medicine Nurses’ Perceptions of Work Environment Ergonomics and Safety Climate
Aktepe Coşar, Dilan; Demirağ, Hatice
Objective: This study aimed to examine the relationship between the ergonomic conditions of the work environment and the perception of safety climate among internal medicine nurses. Materials and Methods: This descriptive study was conducted between October 30, 2023, and January 30, 2024, with a total of 440 internal medicine nurses in Turkey using the “snowball sampling” method. Data were collected using the “Personal Information Form,” the “Workplace Ergonomics Scale for Nurses,” and the “Safety Climate Scale.”. Results: A statistically significant difference was found in the mean scores of the “Workplace Ergonomics Scale for Nurses” based on marital status, educational level, perceived workload, and whether the nurses had received occupational safety training (p < 0.05). However, no significant difference was observed in the scale scores based on gender, professional experience, or satisfaction with the work environment (p > 0.05). A significant difference was also identified in the mean scores of the “Safety Climate Scale” according to gender, educational level, professional experience, satisfaction with the work environment, and occupational safety training status (p < 0.05). A significant negative correlation was found between the scores of the “Workplace Ergonomics Scale for Nurses” and its subdimensions and the safety training subdimension scores. Data were analyzed using t-test, ANOVA, and correlation analysis. Conclusion: In conclusion, improving ergonomic conditions, strengthening managerial support, establishing effective safety communication, and promoting continuous education are recommended as key strategies to ensure that nurses work in a safe and supportive environment. Additionally, implementing tailored interventions based on demographic and professional characteristics may contribute to the development of a safety culture in nursing and the improvement of patient care quality.
AtıfOpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ1Gender Analysis in the Islamic Law-Based Ecofeminism Movement for Ecosystem Protection
Malik, Ihyani; Karimullah, Suud Sarim; Okur, Hüseyin; Rahman
The ecological crisis reflects the failure of ethical relations between humans, nature, and power structures, thus demanding a review of the paradigm of domination that underlies these relations. This study analyzed how the principles of Islamic law can be integrated with the ideas of ecofeminism to create more inclusive and sustainable environmental policies. The study used an intersectional approach with comprehensive literature analysis and gender analysis frameworks to understand how social identity affects women's participation in ecofeminism and environmental protection based on Islamic law principles. The results of the study state that the integration of the principles of ecofeminism and Islamic law has excellent potential to create fair and sustainable environmental policies based on justice (‘adl), balance (mizan), and responsibility (khalifah). The concept of khalifah affirms the role of humans as custodians of the earth, provides a theological reason to support environmental conservation and inspires collective responsibility, including the role of women as essential agents. Programs that give women access to land and natural resources increase their participation in agriculture and environmental management, reduce poverty, and strengthen their role as agents of change. However, challenges such as resistance from patriarchal communities, lack of financial and technical support, and the need for ongoing education and training must be overcome. Technology also plays a crucial role in supporting inclusive and sustainable environmental policies.
AtıfScopus9İncele - MakaleYalnız künye2025Scopus SJRQ1Durability properties of fiber-reinforced geopolymer concrete with natural and industrial waste mineral admixtures
Aksüt, Yavuz Selim; Çullu, Mustafa; Yetgin, Şükrü
In this study, ground granulated blast furnace slag (GGBFS) and quarry rock dust (RD), both industrial and natural mineral wastes were used as binder materials in geopolymer concrete. The influence of these mineral admixtures on the concrete’s durability under aggressive environmental conditions was investigated. Steel, polyester, and hybrid fibers were incorporated at volume fractions of 0%, 0.25%, 0.50%, 0.75%, and 1.0% to further enhance durability performance. Freeze-thaw and sulfate resistance tests were carried out to evaluate the effects of fiber type and content on the durability behavior of the geopolymer concrete. The test results showed that the mineral waste-based binder system itself offered considerable durability while the addition of fibers significantly improved resistance to freeze-thaw cycles and sulfate attacks. Among all types, the geopolymer concrete with 0.5% polyester fiber exhibited the highest resistance to freeze-thaw while hybrid fiber usage provided a balanced enhancement across both test environments.
AtıfScopus1WoS1İncele - MakaleAçık Erişim2025Scopus SJRQ4Is Spirituality a Source of Support or Conflict for Infertility? A Qualitative Study
Karakaş, Sevda; Akarsu, Rukiye Höbek; Tandoğan, Özden; Şahan, Özlem
Background: Infertility has become an important public health problem in developing countries due to its high prevalence. Infertility is a difficult crisis situation with psychological and spiritual dimensions. Aims: The aim of this study is to determine whether religion provides support or conflict for the infertility process in women. Methods: This research was designed as a descriptive qualitative study. This study was conducted in a governmental hospital's infertility outpatient clinic in Istanbul, Turkey. Twenty participants participated in the face-to-face, in-depth interview technique used to gather the research data. A semi-structured interview and a comprehensive information form were used to gather data. Results: In line with the interviews with the participants, 2 main themes, 9 sub-themes and 12 codes for the sub-themes were determined as the findings obtained based on the content analysis in the study, positive religious behaviors and negative religious behaviors. Conclusions: In our study, it was found that women felt unhappy, hopeless and helpless and could not accept not being able to have children. Women blamed religion for their infertility. Religion first caused infertile women to experience conflict. After the conflict, women with religious affiliation perceived religious support as a source of conflict for others.
- MakaleAçık Erişim2025Scopus SJRQ1The effect of high B4C ratio on the improvement of mechanical properties and wear resistance of Al2024/B4C composites fabricated by mechanical milling-assisted hot pressing
Beder, Murat
In this study, the effects of 0 wt% (C0), 10 wt% (C1), 20 wt% (C2) and 40 wt% (C3) B4C content on the microstructure, mechanical properties and dry wear properties of Al2024/B4C composites were investigated. In order to prepare Al2024 matrix composites with different B4C particle contents, mechanical milling (MM) and hot pressing (HP) were employed as powder metallurgy methods. It was found that the θ (CuAl2) phase content in the microstructure of Al2024/B4C compact materials increased with increasing B4C particle reinforcement, reaching its highest value at 40 wt% B4C (C3) reinforcement ratio. As the B4C particle reinforcement content increased, the hardness values of the composite samples increased. Flexural strength values were 445.30 MPa, 495.20 MPa, 277.59 MPa, and 129.37 MPa for samples coded C0, C1, C2, and C3, respectively. It was found that the C0 sample without particle reinforcement exhibited more than 10 times the volume loss of the C3 sample with the highest particle reinforcement at 450 m sliding distance. The SEM examination of the friction surfaces of the Al2024/B4C composite samples showed that the worn surfaces were composed of delamination, adhesion and smearing layers.
AtıfScopus17WoS18OpenAlex18İncele - MakaleAçık Erişim2025Scopus SJRQ2Internet Addiction Among Turkish Adults: The Role of Motives for Internet Use
Kaya, Feridun; Rosell, Javiera; Odacı, Hatice; Vergés, Alvaro; Türkkan, Tuğba
The use of the internet has become an increasingly integral part of individuals’ daily lives, bringing negative consequences such as internet addiction. Understanding the motivations behind internet use is crucial for preventing addiction and developing effective intervention strategies. The objectives of this study are to test the validity and reliability of the Questionnaire of Internet Use Motives (MUI) among Turkish adults and to investigate the predictive effects of socio-demographic variables and internet use motivations on internet addiction. The study was conducted with a sample of 640 adults selected through convenience sampling at two different time points. The majority of participants were women, highly educated, and from a middle socioeconomic background. Data were collected using a socio-demographic questionnaire, the Questionnaire of Internet Use Motives (MUI), and the Internet Addiction Test (IAT). To evaluate the structural validity of the scale, a Confirmatory Factor Analysis (CFA) was performed. Additionally, measurement invariance across genders was examined, and Hierarchical Multiple Linear Regression Analyses were conducted to identify predictors of internet addiction. CFA confirmed the structural validity of the MUI, revealing a five-factor structure with a good fit to the data. The five identified motives were enhancement, coping, social, conformity, and utility. The analyses also demonstrated that the scale possesses convergent and discriminant validity, as well as high reliability. Furthermore, the instrument exhibited measurement invariance across genders. Significant predictors of internet addiction included educational level, socioeconomic status, and the enhancement, social, coping, and conformity motives. The validated MUI provides a robust tool for assessing internet use motives in Turkish adults, offering a foundation for future research and intervention development. Addressing psychological motives such as enhancement, social, coping, and conformity in prevention and treatment strategies may reinforce efforts to mitigate problematic internet use.
AtıfScopus6WoS6OpenAlex6İncele - MakaleYayıncıda açık erişim2025Scopus SJRQ4A comparative analysis of microbial, chemical composition, and quality parameters in Kürtün-Araköy and Gümüşhane breads; [Kürtün-Araköy ve Gümüşhane ekmeklerinde mikrobiyal, kimyasal bileşim ve kalite parametrelerinin karşılaştırmalı analizi]
Çimen, Büşra; Yilmaz, Fırat
The objective of this study was to ascertain the distinguishing characteristics of Kürtün-Araköy bread and Gümüşhane bread, two local breads produced in Gümüşhane province in the Eastern Black Sea region. Furthermore, the bread dough samples employed in bread production were subjected to microbiological analyses. It was determined that the number of microorganisms in the sourdough samples used in the production of Gümüşhane bread was high (P<0.001). In this context, breads sold in the Gümüşhane province were collected and subjected to a series of analyses. These included chemical, microbiological, colour and HMF analyses of the bread samples. As a result of microbiological analyses performed on bread samples; It was observed that there were statistical differences in terms of lactic acid bacteria on MRS agar and yeast-mold counts. However, based on the chemical analyses performed on the bread samples, it was determined that there were statistically significant differences between the bread samples. The resulting data were then subjected to statistical analyses, with the objective of determining the differences between the bread samples. This was achieved through the use of PCA analysis, which also enabled the determination of the significance levels of these differences. In addition, the relationship between the colour values of the bread samples and the amount of HMF was also investigated in this study. The findings indicated that as the L* and b* colour values decreased, the HMF content of the bread samples increased. In this study, it was determined that Kürtün-Araköy and Gümüşhane breads have distinctive characteristics.
- MakaleAçık Erişim2025Scopus SJRQ2The effect of disaster resilience and trauma exposure on PTSD, depression, and sleep disorder among healthcare workers involved in the Kahramanmaraş Earthquakes (2023): a structural equation model
Kiymis, Ibrahim; Yuce, Damla Nur
Healthcare workers (HCWs) serve as the cornerstone of health services, which are among the primary needs during disasters. The chaotic environment caused by disasters can lead to mental health disorders in HCWs, similar to those experienced by disaster victims. Experiencing mental health disorders can hinder HCW’s professional approach to intervention. HCWs should not be overlooked for the possibility of experiencing mental health disorders while providing healthcare services during disasters. Therefore, this study aims to examine the impact of psychological resilience and trauma exposure on PTSD, depression, and sleep disorders among HCWs involved in the Kahramanmaraş Earthquakes, which were Turkey’s most devastating earthquakes. In this quantitative research, a survey technique was employed, reaching 642 hCWs involved in the Kahramanmaraş Earthquakes. Structural Equation Modeling (SEM) was used to test the impact of variables on each other. According to the SEM results, trauma exposure in the HCWs had a significant and positive effect on PTSD (β=+0.899, p = 0.000), depression (β=+0.685, p = 0.000), and sleep disorders (β=+0.603, p = 0.000). Psychological resilience had a significant and negative effect on PTSD (β=−0.278, p = 0.004) and depression (β=−0.322, p = 0.008). Surprisingly, psychological resilience had a significant and positive effect on sleep disorders (β=+0.692, p = 0.000). In conclusion, while trauma exposure led to PTSD, depression, and sleep disorders in the HCWs, psychological resilience mitigated PTSD and depression. Unexpectedly, psychological resilience increased sleep disorders. For this reason, it is recommended that future studies investigate in detail the reasons why HCWs experience sleep disorders and examine them in depth.
AtıfScopus5WoS5OpenAlex6İncele - MakaleAçık Erişim2025Scopus SJRQ2Algebraic and topological foundations of non-Newtonian analysis via generator functions
Civgin, Emre; Yalcin, Numan
In this paper we explored the algebraic and topological underpinnings of non-Newtonian analysis through the framework of a generator function α. We introduced the α-number systems and the associated arithmetic operations, and we established the corresponding algebraic structures, including groups, fields, and vector spaces defined over α-real numbers. On the topological side, we developed the notions of α-metric spaces and α-sequences, thereby extending core concepts of analysis to the non-Newtonian setting. The study culminates with the formulation of star (*) analysis, which provides a systematic mechanism for transitioning between distinct arithmetic systems, together with a rigorous treatment of *-vector spaces and linear operators.
AtıfScopus1WoS1OpenAlex1İncele - MakaleYalnız künye2025Scopus SJRQ3Eight Personal Characteristics Scale Related to Vitality in Disasters: Turkish Validity and Reliability
Karadeniz, Havva; Duran Yılmaz, Seçil; Erkuran, Hatun
Objective: This study aimed to validate and ensure the reliability of the Turkish version of the Vitality Questionnaire, which captures traits advantageous for survival, to aid in systematic preparations for future disasters and life challenges. Method: In this study, the Scale of Eight Personal Characteristics Related to Vitality was translated into Turkish by three language experts, validity and reliability analyses were conducted, and a pilot test was carried out with 30 participants. Subsequently, between February 1 and March 1, 2024, online data were collected from 523 individuals across Turkey who had experienced disasters. Results: The average age of participants was 24.09 ± 7.60 years; 72.7% (n = 380) were female. Among participants, 79.2% (n = 359) had experienced an earthquake, 65.1% (n = 56) a flood, and 47.4% (n = 9) a fire. Analysis of the Eight Personal Traits Scale showed the original 8-factor structure was retained, with all item factor loadings above 0.40 and an explained variance of 61.180%. Therefore, no items were removed, and the 8-subdimension structure was accepted. Factor loadings ranged between 0.34 and 0.83. Internal consistency, evaluated through split-half reliability, was found to be at an acceptable level. Conclusion: The analysis and evaluations conducted in this study concluded that the Eight Personal Traits Scale Related to Disaster Vitality is a valid and reliable measurement tool for the Turkish sample in identifying personal traits in the face of disasters.
- MakaleYalnız künye2025Scopus SJRQ3Comparing the effects of dietary sugars on cognitive performance and reaction time: A randomized, placebo- controlled and double-blind experimental trial
Yılmaz, Hacı Ömer; Meriç, Çağdaş Salih; Yabancı Ayhan, Nurcan
The aim of the study was to compare the effects of acute intake dietary sugars on cognitive performance and reaction time. This study was, randomized, placebo-controlled, double-blind experimental design, conducted with 75 healthy adults. At the beginning of the study, the participants (36 male, 39 female; 21.6 ± 1.3 years of age; body mass index: 21.59 ± 1.94 kg/m2) were randomly divided into equal five groups (n:15) (glucose (10 g), fructose (10 g), sucrose (10 g), saccharin (0.24 g), placebo), and received dietary sugars dissolved in 200 mL of water. Cognitive performance was determined with Cancelation Test, and the Simple Response Time and Ruler Drop Tests were used in order to response and reaction time of participants, respectively. General score of cognitive performance (0.93 ± 0.1), reaction (295 ± 20 ms), and response (204 ms) were highest in glucose and lowest in placebo (0.63 ± 0.1; 368 ± 22 ms; 251 ms, respectively) (p <.001). Saccharin groups had a higher reaction (312 ± 22 ms) and response (216 ms) time score compared to consumed fructose (316 ± 39; 227 ms), sucrose (354 ± 26; 246 ms), and placebo (368 ± 22; 251 ms) groups, respectively (p <.001). These findings show that differences in the absorption pattern and sweetness levels of sugar types may have different effects on cognitive performance and reaction time.
AtıfScopus4WoS6OpenAlex5İncele - MakaleAçık Erişim2025Scopus SJRQ1Advancing sea level anomaly modeling in the black sea with LSTM Auto-Encoders: A novel approach
Yavuzdoğan, A.; Tanir Kayıkçı, E.
Rising sea levels pose significant risks to coastal communities and ecosystems. Accurate modeling of sea level changes is crucial for effective environmental management and disaster mitigation. Machine learning methods are emerging as an important asset in improving sea level predictions and understanding the impacts of climate change. Especially, Long Short-Term Memory (LSTM) models have emerged as a powerful tool for sea level anomaly modeling, but there is an increasing need for more advanced models in this area. This study enhances existing methodologies by introducing a novel approach using an LSTM Auto-Encoder model, designed to compress input data into a lower-dimensional latent space before reconstructing it, thereby capturing complex temporal dependencies and anomalies effectively. We compared LSTM Auto-Encoder model performance with that of a Stacked LSTM network, which learns complex temporal patterns through multiple layers, and a traditional damped-persistence statistical model. Our results demonstrate that the LSTM Auto-Encoder model not only outperformed these models in predicting sea level anomalies across various lead times but also exhibited superior generalization capabilities across both satellite altimeter and in-situ data. These findings highlight the potential of the LSTM Auto-Encoder model as a powerful tool in coastal management and climate change studies, underscoring the critical role of advanced machine learning techniques in enhancing our predictive abilities and informing disaster preparedness strategies.
AtıfScopus6WoS6OpenAlex6İncele - MakaleAçık Erişim2025Scopus SJRQ1Unveiling the bioactive potential of Scabiosa rotata M. Bieb fruits: a landmark study on cytotoxic, antioxidant, and antibacterial activities through liquid chromatography-mass spectrometry profiling and molecular docking
Yildirim, Aybeniz; Celep, Inci Kurt; Gül, Abdulkadir; Eter, Özge Soylu; Baǧcl, Eyüp
The aim of this study was to investigate the antioxidant, cytotoxic, and antibacterial activities of ethanol extract (SRE) and its hexane (SRH), chloroform (SRC), ethyl acetate (SREA), and aqueous ethanol (SRAE) sub-extracts obtained from the fruits of Scabiosa rotata M. Bieb. Molecular docking studies were also performed to evaluate the interactions of the most active sub-extract with the human mitochondrial ABC transporter (ABCB10) protein, plays an important role in cellular oxidative stress regulation and mitochondrial function. Total phenolic (TPC) and flavonoid (TFC) contents and antioxidant radical scavenging activities (1, 1-diphenyl-2-picryl hydrazyl [DPPH] and 3-ethylbenzothiazoline-6 sulfonic acid [ABTS]) of all extracts were determined. Cytotoxic activity was evaluated on different cell lines, such as HepG2 (liver cancer), MCF-7 (breast cancer), and HeLa (cervical cancer) cells. Antibacterial activity was tested against Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, and Staphylococcus aureus. SREA showed the best antioxidant activity with IC50 values of 54.20 μg/ml and 48.56 μg/ml for DPPH and ABTS, respectively, and also had high TPC (499.06 mg GA/g) and TFC (327.45 mg QE/g). Furthermore, SREA showed significant cytotoxicity comparable to cisplatin with IC50 values of 51.29, 51.41, and 52.89 μg/ml for HepG2, MCF-7, and HeLa cells, respectively. However, none of the extracts showed antibacterial activity. The analysis using liquid chromatography-mass spectrometry (LC/MS-MS) on SREA found that the main phenolic compounds are chlorogenic acid, hesperidin, quinic acid, and isoorientin. Molecular docking of the major compounds showed that chlorogenic acid (2.21 mM) exhibited the strongest binding affinity, followed by hesperidin (5.83 mM), quinic acid (8.86 mM), and isoorientin (13 mM). These findings indicate the potential of SREA to be used as a natural antioxidant and anticancer agent.
AtıfScopus7WoS7OpenAlex7İncele - MakaleAçık Erişim2025Scopus SJRQ2SOME PHYSICAL AND MECHANICAL PROPERTIES OF PARTICLE BOARDS PRODUCED WITH HAZELNUT HUSK AND ASTRAGALUS (Astragalus membranaceus) PLANT
Karahan, Selim; Guler, Cengiz
In this study, under laboratory conditions, hazelnut husk and astragalus plant were mixed separately into black pine wood chips, and multi-purpose boards were produced from the obtained chips with urea formaldehyde glue. After the hazelnut husk and astragalus plant were dried and ground, they were added to the chip and glue mixture in certain proportions. Hazelnut husk mixture ratios were applied as 100 %; 0 %, 75 %; 25 %, 50 %; 50 %, 25 %; 75 %, 0 %; 100 % to black pine wood chip in the particle board mixture. These ratios were made in the same way for the astragalus plant. From these mixtures, chipboard blanks of 16 mm thickness and densities between 0,68 g/cm3 and 0,72 g/cm3 were produced. Density, moisture content, thickness increase, water intake, bending strength, modulus of elasticity in bending and tensile strength perpendicular to the surface were tested in physical and mechanical experiments. According to the results obtained, as the participation rate of hazelnut shells and astragalus increased, the durability properties of the panels decreased. At the same time, it shows that the technological properties of the panels produced by adding up to 25 % astragalus plant and hazelnut shells to the mixture comply with the standards.
AtıfScopus2WoS3OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ4Physicochemical, rheological properties, antioxidant activity and mineral amount of the ice cream containing barberry (Berberis vulgaris L.); [Karamuk (Berberis vulgaris L.) ilaveli dondurmanın fizikokimyasal, reolojik özellikleri, antioksidan aktivitesi ve mineral içeriği]
Ürkek, Bayram
Ice cream is classified as a dairy product or frozen dessert. Various fruits have been incorporated into ice cream formulations to enhance their quality and nutritional properties. In this study, ice creams were prepared with barberry at four different concentrations (0%, 5%, 10% and 15%). The physicochemical, rheological characteristics, antioxidant activity, mineral content and sensory properties of the samples were examined. With the addition of barberry, the dry matter (DM), acidity and overrun values increased, while pH and fat content decreased. The viscosity and consistency coefficients were highest in the samples containing 10% and 15% barberry. All samples exhibited pseudoplastic flow behavior. The colorimetric parameters showed significant differences among the samples, except for the C* value. The sample with 5% barberry had higher levels of Ca, Na, Mg, S, Fe and Zn compared to the other barberry-added samples. The sample containing 15% barberry demonstrated the highest DPPH scavenging activity (22.15 μg/mL) and total phenolic content (TPC) (1474.04 mg GAE/g), while the sample without barberry had the lowest values (143.19 μg/mL and 149.48 mg GAE/g, respectively). Additionally, the control sample received the lowest scores for gumming structure, texture, melting in the mouth, resistance to melting and overall acceptability. These findings suggest that incorporating 10% barberry could enhance the quality and nutritional value of ice creams.
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İncele - MakaleYalnız künye2025Scopus SJRQ1Influence of PGA/PGV ratio on the seismic performance of buildings with different slenderness ratios considering soil-structure interaction
Araz, Onur
In this study, the seismic performance of buildings equipped with tuned mass damper (TMD) having different slenderness ratios, subjected to ground motions with varying a wide range of PGA/PGV ratios is investigated, considering soil-structure interaction (SSI). A methodology based on hybrid Genetic Algorithm-Particle Swarm Optimization (GA-PSO) algorithm is proposed to determine the optimal parameters of TMD. For this purpose, three buildings (i.e., 3-story, 6-story, and 12-story buildings) are considered and the dynamic properties of these buildings are determined according to the provisions specified in ASCE-7. These buildings, which are frequently encountered in the traditional building stock, represent low, medium, and high-rise buildings, respectively. In the numerical analysis, three different soil types (i.e., SC, SD, and SE) and 80 ground motions are also considered. These records are divided into three different classes: high, intermediate, and low frequency content. The Newmark integration method is used to determine the dynamic responses of the structures in the time domain analysis. Numerical results show that the frequency content of ground motion and the slenderness ratio have a significant effect in reducing the peak displacement and acceleration responses of structures. The findings also demonstrate that when the PGA/PGV ratio is greater than 2, TMD shows mostly sufficient control performance for all buildings and all support conditions.
AtıfScopus21WoS20OpenAlex17İncele