WoS İndeksli Yayınlar Koleksiyonu

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Citation - WoS: 26
Citation - Scopus: 28
1-(2-Hydroxyethyl)-2-imidazolidinone as corrosion inhibitor of mild steel in 0.5 M HCl solution: thermodynamic, electrochemical and theoretical studies
(Journal of Adhesion Science and Technology, 2019) Keleşoğlu, Ayşen; Yıldız, Reşit; Dehri, İlyas
The inhibition effect of 1-(2-Hydroxyethyl)-2-imidazolidinone (2-HEI) on mild steel (MS) corrosion in 0.5M HCl solution was investigated at different inhibitor concentration and temperature by electrochemical experiments, such as linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization and quantum chemical calculations. The inhibitor adsorption process on mild steel in 0.5M HCl system was studied at different temperatures (20 C–50 C). Furthermore, the surface morphology of MS was also investigated with SEM in the absence and the presence of inhibitor. The adsorption of 1-(2-Hydroxyethyl)-2-imidazolidinone on MS surface is an exothermic process and this process obeys the Langmuir adsorption isotherm. The Quantum chemical findings are good agreed with the empirical data.
16. Asır Kudüs’ünde Bir İlim Kurumu Taziyye: Medresesi
(Hitit Üniversitesi, 2022) Evsen Aydın, Esra; Aydın, Esra Evsen
Üç semavi din için kutsal kabul edilen, bu nedenle tarih boyunca bu üç dine mensup devletlerin şehre hâkim olma mücadeleleri verdiği, yeryüzünde bu özellikte tek şehir olan Kudüs Müslümanlar için de tarihleri boyunca önemli bir konumda olmuştur. İslam idaresinde olduğu her dönemde Mekke ve Medine’den sonra üçüncü harem kabul edilen, tamamı Mescid-i Aksa olarak anılan Harem-i Şerif alanı başta olmak üzere şehrin her köşesinde Müslüman bir kimlik oluşturmak amacıyla imar ve inşa faaliyetleri devam etmiştir. Coğrafi konumu sebebiyle ticaret merkezi özelliği taşımayan, Haçlı seferlerinin olduğu dönem dışında askeri ve siyasi olarak da merkezi bir konumu olmayan Kudüs, Müslümanların hâkim olduğu zamanlarda mukaddes bir dini merkez olmanın yanında önemli bir ilim merkezi özelliği de taşımıştır. Şehirde inşa edilen medreseler, tekke ve zaviyeler, ribâtlar, hankahlar gibi müstakil dini ve ilmi kurumların yanı sıra Mescid-i Aksa’nın kendisi de sadece ibadet için kullanılan bir mescit olmayıp her zaman cami dersleri, zikir meclisleri, mestabe denilen ve avlusunda kurulan ilim halkalarıyla canlı bir ilim merkezi fonksiyonu icra etmiştir. Şehirde ilim kurumlarının tesisi Eyyûbîler döneminde başlayarak Memlükler ile zirveye ulaşmış, Osmanlılar döneminde ise daha çok mevcut sistemin, kurumların ve bu kurumları ayakta tutan vakıfların muhafazasını sağlayan bir siyaset takip edilmiştir. Osmanlı idaresine geçtikten sonra Kudüs’te bulunan medreselerin işleyişini nasıl devam ettirdiği, vakıf müessesesinin kontrolü gibi konuların anlaşılması için Kudüs medreseleri üzerine yapılacak müstakil çalışmaların sayısının artması önemlidir. Bu alanda literatüre katkı sağlamayı amaçlayan bu makalenin konusu; önemli askeri ve idari hizmetlerde bulunan, ancak ömrünün son demlerinde yaşadığı siyasi sorunların ardından bir tür emeklilik ihsanı olarak Kudüs’te yaşama talebi kabul edilen Memlük emiri Emir Tâz tarafından inşa ettirilen, orta büyüklükte olduğunu düşündüğümüz Tâziyye Medresesi’dir. Mescid-i Aksa çevresinde kurulan ve sayıları elliyi aşan medreseden biri olan Tâziyye, XVI. asırda nüfusu ancak 5 bin civarında olan şehirdeki canlı ilim hayatının bir şahidi olarak Osmanlı devletinin hâkimiyeti döneminde de faaliyetine devam etmiştir. Osmanlı döneminde Arap coğrafyasında bulunan medreselerin yapısını ve işleyişini ele alan literatürde mevcut çalışmalar daha çok vakfiyesi bugüne gelen veya mansıp sahiplerinin ve talebelerinin izinin tabakât kitaplarından sürülebildiği yani hakkında malumata ulaşmanın nispeten kolay olduğu daha büyük ölçekli ve görünürlüğü olan yapılara odaklanmaktadır. Bu makalenin amacı ise, XVI. asırda Kudüs’ün ilmi kurumlarını ve yapısını anlayabilmek için büyük ve görünür bir örneğin değil, şehirde sayıca daha fazla olan ancak hakkında sınırlı miktarda malumata rastlanan orta ölçekli bir örneğin izini sürerek literatüre kazandırmaktır. Bunun için XVI. asırda farklı tarihlere ait Şer̒iyye sicilleri ve mühimme kayıtları ile literatürde mevcut çalışmalara müracaat edilecektir. Kudüs Şer̒iyye sicilleri Arapça olup defterlerin fiziki şartları ve yazı karakterleri sebebiyle okunması konusunda zorluklarla karşılaşıldığı için Türkçe literatürde, merkezine doğrudan bu yerel kaynakları alarak konuyu inceleyen çalışma sayısının az olması nedeniyle bu makale bu yönüyle de alana katkı sağlamayı amaçlamaktadır. Makale beş başlıktan oluşmaktadır. İlk başlıkta medresenin vâkıfı olan Memlük emiri Emir Tâz hakkında biyografik bilgilere, ikinci başlıkta medresenin mekânsal özelliklerine yer verilmiştir. Medresenin devamlılığı için en önemli unsur olan vakıf gelirlerinin ve bu işleyişte görevli kişilerin ele alındığı üçüncü başlıkta hem medresenin maddi desteğinin büyüklüğü incelenmiş hem işleyişte karşılaşılan bazı sorunlar ortaya konmuştur. Dördüncü başlıkta medresenin tedris faaliyetinin unsurlarına odaklanarak Kudüs medreselerinde mansıpların tevcihi, mansıp elde etmek için rekabet, medresenin tedris kapasitesi ve sunduğu imkânlar gibi konulara Tâziyye Medresesi özelinde yer verilmiştir. Beşinci başlıkta ise medresedeki diğer dini hizmetler incelenmiştir. Vakfiyesi bugüne ulaşmayan medresenin vakıf şartlarının detaylarına ve tarih boyunca değişime uğrayıp uğramadığı bilgisine ulaşmak henüz mümkün olmadığı gibi mevcut malumat tedrisin mahiyetine ve okutulan eserlerin hangileri olduğuna dair de detaylı bilgi elde etme imkânı sunmamaktadır. Kudüs ile alakalı medreseler ve daha büyük çerçevede ilmi hayat ile alakalı çalışmaların sayısı arttıkça literatürde bulunan bu boşlukların da doldurulması mümkün olacaktır.
3D Biomechanical Analysis of Targeted and Non-Targeted Drag Flick Shooting Technique in Field Hockey and Training Strategies
(ICLEL CONFERENCES, 2017) Eskiyecek, Canan Gülbin; Meriç Bingül, Bergün; Bulgan, Çiğdem; Aydın, Menşure
This study compared targeted and non-targeted drag flick field hockey shooting techniques in the penalty corner area, using a three-dimensional kinematic analysis. Eleven male field hockey players (mean age 19,82 +/- 1,40 years) participated voluntarily. Seven high-speed cameras (Oqus 7+) with 120Hz refresh rates were used. Field calibration was completed via the wand method. The data was evaluated in two phases: starting and fmishing. Players undertook three drag flick shots to the box using targeted and non-targeted techniques. The angular kinematics and stroke force applied to the stick were analyzed using the Qualisys Track Manager Program V2.12, and ball velocity statistics were gathered with the SPSS 18.0 program. To make an accurate target shot the players attempted to maximize their targeted shooting rates, particularly by decreasing the speed of their lower extremities.
Citation - WoS: 3
Citation - Scopus: 5
7-15 years of age group children' hypertension and obesity
(2013) Battaloğlu İnanç, Betül
Amaç: Mardin ili, ilköğretim okullarındaki öğrencilerde, hipertansiyon ve obezite değerlendirilmesi amaçlandı. Gereç ve Yöntem: Tanımlayıcı tipteki bu çalışma, Mardin ilinin, farklı sosyoekonomik düzeyindeki, üç ilköğretim okulunda, 3460 öğrenciyle yürütüldü. Öğrencilerin, obeziteleri Dünya Sağlık Örgütü’ne (WHO), kan basınçları Amerikan Pediatri Akademisi’nin yayınladığı standartlara göre tanımlandı. Çalışmanın verileri SPSS paket programında, ki-kare testi ile değerlendirildi. İstatistiksel anlamlılık p <0.05 olarak belirlendi. Bulgular: Fazla ağırlığı olan çocuk % 15.78, obez olan çocuk oranı % 10.57’ dir. Obezite sıklığı kız çocuklar için % 9.05 ve erkek çocuklar için % 11.97’ dir ( p<0.01). Öğrencilerin % 1.30’ unda presistolik hipertansiyon, % 2.02’ sinde sistolik hipertansiyon, % 2.65’ inde prediyastolik hipertansiyon ve % 2.74’ ünde diyastolik hipertansiyon görüldü. Ailesinde hipertansiyon olanlar ve onların çocukları arasında hipertansiyon ilişkisi yoktu. İki saatin üzerinde televizyon seyreden çocuklarda, obezite mevcuttu ( p=0.03). Sonuç: Okul sağlığı açısından, hipertansiyon ve obezite değerlendirmeleri gereklidir. Bu nedenle okul çağı çocuklarının muayenelerinde, bu konu mutlaka yer almalı, hipertansiyon ve obezite konusunda öğrencilere ve ailelerine eğitimler verilmelidir.
A Comparison of Native and Syrian Immigrant Women Students' Genital Hygiene Behaviors: A Cross-Sectional Study
(Univ Sao Paolo, 2025) Icke, Sibel; Cifci, Sema
Objective: This study aims to compare the genital hygiene behaviors of native and Syrian immigrant women students. Method: This was cross-sectional research. The sample size of the study was determined via power analysis and G*Power software. A total sample size of 330 individuals was equally distributed to both groups. Sociodemographic Characteristics Questionnaire" and the 'Genital Hygiene Behaviors Scale' were used as data collection tools. Results: There was a significant difference between the mean scores of the scales of both student groups (p < 0.05). The mean scores of native students were found to be higher. The variables "how to clean the genital area", "material used for genital hygiene", "washing method of underwear", "pretoilet hand washing habits" and "regular menstruation" were found to be most effective in terms of the mean scores of the Genital Hygiene Behaviors Scale and its subscales for immigrant students. Conclusion: Social security status and nationality were the most influential sociodemographic factors affecting genital hygiene behaviors. It would be beneficial to raise awareness and promote behavioral changes regarding genital hygiene through seminars, conferences, workshops, and similar events targeting all women university students.
Abnormal Uterine Bleeding in Adolescent Girls Retrospective Study
(Brieflands, 2025) Ozalkak, Servan; Yildirim, Ruken; Karakaya, Amine Aktar; Tas, Funda Feryal; Oncel, Kahraman; Okur, Nurettin; Ozbek, Mehmet Nuri
Background: Abnormal uterine bleeding (AUB) is the most common reason for gynecology-related hospital admissions in adolescence. Objectives: The present single-center study aimed to evaluate the diagnosis distribution in adolescents with AUB and to compare the clinical features and treatments of patients with hemoglobin levels below and above 10 g/dL. Methods: The present single-center study retrospectively collected demographic and epidemiological data from adolescents aged 10 - 18 years presenting to our institution with a diagnosis of AUB. Patient data were extracted from electronic medical records and analyzed using SPSS software. Descriptive statistics, including frequency, percentage, mean, standard deviation (SD), median, and interquartile range (IQR), were calculated. Patients were classified according to hemoglobin levels (< 10 g/dL as group 1 and >= 10 g/dL as group 2). Results: Among 167 adolescent patients, 35.9% had hemoglobin levels below 10 g/dL. Hospitalization rates were significantly higher in group 1 (86.4%) compared to group 2 (2.8%) (P < 0.001). The most common causes of AUB were anovulation (84.4%) and polycystic ovary syndrome (PCOS) (11.4%). The primary treatments included combined oral contraceptives (COCs) with iron supplementation (45.5%) and iron alone (28.7%). Erythrocyte transfusion (ERT) was performed in 18% of cases, predominantly in group 1. This study is limited by the lack of a standardized quality of life assessment tool for AUB. The single-center design and retrospective data collection may limit the generalizability of the findings and introduce selection bias, respectively. Conclusions: Anovulation and PCOS are the main causes of AUB in adolescents. Patients with hemoglobin levels below 10 g/dL and active bleeding should be evaluated carefully, as ERT may be necessary. A wide differential diagnosis should always be considered when managing adolescent AUB.
Abu Ubayd’s Understanding Of Naskh;
(Hitit Univ, 2022) Yasar, Mehmet Aziz; Nas, Taha
In the period when Islamic sciences were formed, a large number ofscholars with absolute ijtihad capacity were trained. One of the scholars mentioned is Abu `Ubayd al- Qasim ibn Sallam al-Khurasani al-Harawi who was educated by many famous scholars of the period, had a great influence on both the scientific and political circles. For this reason, he could not be shared by different sect biographers. As a matter of fact, some Shafi'i tabaqat writers counted Ebu Ubeyd as a follower of Imam Shafii. On the other hand, some Hanbali scholars have mentioned Ebu Ubeyd among the class of Hanbali scholars. However, it was concluded that it would be more correct to see Ebu Ubeyd as an independent mujtahid rather than a follower of any madhhab. For, in his own works, the fact that he refers more to Imam Malik rather than Imam Shafii and Ahmad ibn Hanbal and sometimes refers to the views of Abu Hanifa and Imamey indicates this. Ebu Ubeyd, who came to the forefront with his faqih and muhaddis aspects, had a deep knowledge of the subject of naskh, which has a close relationship with these two sciences, and in this regard, he wrote a rare work called en-Nasih ve'l-mensu. fi'l-kur.ani'l-aziz ve ma fihi mine'l-fera'iz ve's-sunen. While revealing Ebu Ubeyd's understanding of naskh, his work en-Nasi. ve'l-mensu. was used as the main source. In addition to this, his other works related to the subject, especially his work called Kitabu'l- emval, were among the first hand sources that were consulted. It has been tried to determine his approach to naskh based on the statements he made on the subject and the examples he gave in this regard. In this context, Ebu Ubeyd's approach to the nature and framework of naskh and his views on the evidences that can abrogate each other are examined in this study. Ebu Ubeyd discussed the abrogation in a broader sense as "the modification of a shar'i ruling by a later evidence", not the established meaning in the methodology as "removal of a shar'i ruling with a later shar'i proof". In this context, naskh is also used for the allocation of public, the denial of the absolute, the statement of conciseness, the correction of a wrong understanding and the exception made from a general rule. This is known as the understanding of naskh among the companions, tabi`in and early convert scholars. However, although Ebu Ubeyd is at the same age as Imam Shafii and has copied and benefited from his works, it is noteworthy that he preferred the predecessor's approach to the subject rather than the naskh understanding he adopted. It is important to investigate this. He adopted the approach of the public regarding the Shari'a evidences of Ebu Ubeyd that could naskh each other. According to him, the verses of the Qur'an can naskh each other. He gave many examples of this. Another point that draws attention here is to ascribe the concept of naskh used for the verse of the Qur'an by Ebu Ubeyd, from the Lawh-i Mahfuz, in the form of a verse whose recitation is lasting and its meaning is naskhed, and a verse that is removed from people's hearts by canceling both its recitation and used in different meanings. Ebu Ubeyd stated that sunnah can be naskhed with sunnah, without making any distinction between ahad and mutawatir about sunnah and its naskh. However, despite giving many examples of the naskh of the ahad sunnah with its own like, no example has been encountered of the naskh of the ahad sunnah with its own like or with ahad and the ahad sunnah with the mutawatir sunnah. As it can be understood from my statements on the subject, Ebu Ubeyd saw that it is permissible to naskh both mutawatir and ahad sunnah with the Qur'an. However, while there is an example for the naskh of the ahad sunnah with the Qur'an in his related works, there is no example for the other. Although there is no clear statement on the issue that the Qur'an can be naskhed with the sunnah, it is understood from some examples that he gives permission for this.
Citation - WoS: 2
Accuracy Evaluation of ChatGPT 4.0 in Text Annotation of Turkish Islamic Literature
(Dinbilimleri Akad Araştirma Merkezi, 2024) Cancelik, Ali; Sen, Ihsan; Yakut, Emrullah
This study investigates the application of artificial intelligence, specifically Chat-GPT-4.0, in the field of Turkish Islamic literature with a focus on text annotation and accuracy evaluation. With advancements in machine learning and deep learning algorithms, AI has been utilized across various fields, from education to healthcare, enhancing the depth and speed of analyses traditionally done manually. In this study, ChatGPT-4.0 was employed to interpret a Turkish qasida-a form of classical panegyric poetry dedicated to Sultan Selim I. The research evaluated twenty couplets from the qasida, split into two groups: the first ten were analyzed with directed prompts that focused on the relationship between music and emotion, while the remaining ten were interpreted without guidance, allowing the AIto provide autonomous commentary. The first section of the study focused on a structured approach where specific prompts were used to guide ChatGPT-4.0 in exploring themes of musical symbolism and emotional depth. This guided analysis included topics like "Music and Emotional Expression," "Symbolism of Mehter Music," and "The Emotional Role of the Ney (reed flute) in Ottoman Poetic Traditions." By drawing connections between these themes and the couplets, the AI was encouraged to explore the symbolic associations between certain musical instruments and emotional states. The ney, for example, was interpreted as an instrument conveying melancholy, aligning with its cultural significance in Sufi music. This directed approach led to highly consistent results, with the responses scoring well in terms of factual accuracy, thematic relevance, and clarity. In the second part of the analysis, ChatGPT-4.0 was tasked with interpreting the couplets without directed prompts, allowing for a broader analysis not constrained to any specific themes. Here, the AI adopted a more conceptual approach, exploring general cultural, aesthetic, and emotional aspects rather than focusing solely on musical connections. This autonomy led to varied interpretations that were not always aligned with the intended themes but introduced additional insights. Interestingly, these responses scored higher in clarity and specificity but showed slightly lower scores in factual accuracy and evidence-based support compared to the directed analysis. The results suggest that while AI can independently provide insightful interpretations, directed prompts are beneficial for maintaining thematic focus and analytical consistency in specialized fields like Turkish Islamic literature. Comparing the results from both sections, the study identified distinct strengths and limitations in AI-driven text annotation. The guided analysis underscored the value of prompt engineering for obtaining focused, factually consistent insights, particularly in examining the complex cultural and emotional dimensions of Turkish Islamic literature. For instance, by structuring questions around musical themes, the AI could more effectively generate contextually accurate interpretations. Conversely, the unguided responses illustrated ChatGPT-4.0's potential for producing broader cultural reflections, allowing the model to interpret the couplets through a more diverse lens, though sometimes at the expense of thematic precision. An important aspect of this study was the accuracy evaluation of the AI's responses. For this purpose, a six-criterion framework-Accuracy of Information Index (AOI)-was developed, rating responses on a scale from 0 to 5 based on the following factors: factual accuracy, evidence-based support, clarity, thematic relevance, specificity, and consistency. The results revealed that the guided approach consistently achieved higher scores in factual accuracy, evidence support, and thematic relevance, demonstrating the importance of structured guidance in AI-assisted literary analysis. On the other hand, the unguided section achieved higher clarity and specificity scores, indicating that, while the AI provided more autonomous insights, some interpretations deviated from the intended themes. The study's methodology also included a detailed comparative analysis of sources cited in each section. In the guided analysis, references to Ottoman music and poetry sources, such as works by Turkish musicologists and historians, were integrated into the AI responses to enhance reliability. Citations were provided in APA style, further validating the AI's interpretations. In contrast, the unguided analysis drew more general connections, citing broader literary and historical sources, which, while insightful, occasionally lacked the thematic depth of the guided responses. The research provides a comprehensive overview of how AI, when combined with structured prompts, can effectively contribute to the study of complex literary texts, offering both thematic insights and cultural analysis. This study suggests that artificial intelligence can act as a valuable assistant in Turkish Islamic literature by supporting traditional methods with a systematic, technology-driven approach. However, the findings also caution against over-reliance on AI, as accuracy and thematic relevance can be compromised without proper guidance. For future research, integrating more diverse prompts or refining prompt strategies could enhance the precision and depth of AI-generated insights, enabling scholars to explore Turkish Islamic literature from new perspectives. Ultimately, this study contributes to ongoing discussions on AI's role in the humanities, specifically in analyzing culturally rich texts within Turkish Islamic literature. The research underscores the potential of AI to support and enrich traditional interpretative methods, suggesting that, with the proper guidance, AI tools can aid scholars in making literary works more accessible and interpretable. While AI may not replace human scholarship, it can significantly complement it, allowing researchers to uncover nuanced layers of meaning within classical literature.
Acoustic-Based Fault Diagnosis of Electric Motors Using Mel Spectrograms and Convolutional Neural Networks
(Nature Portfolio, 2025) Uzel, Hasan; Ozupak, Yildirim; Alpsalaz, Feyyaz; Aslan, Emrah; Zaitsev, Ievgen
This study presents a comprehensive deep learning framework for diagnosing acoustic faults in electric motors. The framework uses Mel spectrograms and a lightweight convolutional neural network (CNN). The method classifies three motor states, engine_good, engine_broken, and engine_heavyload, based on audio recordings from the IDMT-ISA-ELECTRIC-ENGINE dataset. To prevent data leakage and ensure a robust evaluation, the study employed file-level splitting, session separation, 5-fold cross-validation, and repeated trials. The raw audio signals were transformed into Mel spectrograms and processed through a CNN architecture that integrates convolutional, pooling, normalization, and dropout layers. Quantitative metrics, including THD, spectral entropy, and SNR, further characterize the acoustic distinctions between motor states. The proposed model achieved a test accuracy of 99.7%, outperforming or matching state-of-the-art approaches, such as ResNet-18, CRNN, and Transformer classifiers, as well as traditional MFCC-based baselines. Noise robustness and sensitivity analyses demonstrated stable performance under varying SNR conditions and preprocessing settings. Feature-importance maps revealed that low-frequency regions (0-40 Mel bins) were key discriminative components linked to physical fault mechanisms. Computational evaluation confirmed the model's real-time feasibility on embedded hardware with low latency and a modest parameter count. Though primarily validated on one motor type, external-domain testing revealed strong adaptability. Future work may incorporate transfer learning or multimodal fusion. Overall, the proposed framework provides a highly accurate, interpretable, and efficient solution for real-time motor fault diagnosis and predictive maintenance in industrial environments.
Citation - WoS: 25
Citation - Scopus: 29
Activated Carbon-Coated Iron Oxide Magnetic Nanocomposite (ionps@ctac) Loaded With Morin Hydrate for Drug-Delivery Applications
(Frontiers Media Sa, 2024) Dogan, Yusuf; Ozic, Cem; Ertas, Erdal; Baran, Ayse; Rosic, Gvozden; Selakovic, Dragica; Eftekhari, Aziz
Cancer is a major disease that affects millions of people around the world every year. It affects individuals of all ages, races, and backgrounds. Since drugs used to treat cancer cannot distinguish between cancerous and healthy cells, they cause systemic toxicity along with serious side effects. Recently, controlled drug-release systems have been developed to reduce the side effects caused by anticancer drugs used for treatment. Morin is an anticancer drug with a flavonol structure. It has been extensively researched for its antioxidant, anti-inflammatory, antitumoral, and antibacterial properties, especially found in Chinese herbs and fruits, and its multiple positive effects on different diseases. In this study, a nanocomposite with magnetic properties was synthesized by coating biocompatible activated carbon obtained using the fruits of the Celtis tournefortii plant on the surface of iron oxide magnetic nanoparticles. Characterization of the synthesized activated carbon-coated iron oxide magnetic nanocomposite was confirmed by Fourier transform infrared, scanning electron microscopy, energy-dispersive X-ray spectrometry, X-ray diffraction, dynamic light scattering, zeta potential, and vibrating sample magnetometry. The cytotoxic effects of the drug-loaded magnetic nanocomposite were examined in HT-29 (colorectal), T98-G (glioblastoma) cancer cell lines, and human umbilical vein endothelial cell (HUVEC) healthy cell line. The morin loading and release behavior of the activated carbon-coated iron oxide magnetic nanocomposite were studied, and the results showed that up to 60% of the adsorbed morin was released within 4 h. In summary, activated carbon-coated iron oxide magnetic nanocomposite carriers have shown promising results for the delivery of the morin drug.
Citation - WoS: 11
Citation - Scopus: 20
Activity of Metalaxyl-M plus mancozeb, Fosetyl-Al, and Phosphorous Acid against Phytophthora Crown and Root Rot of Apricot and Cherry Caused by Phytophthora palmivora
(CZECH ACADEMY AGRICULTURAL SCIENCES, 2017) Türkölmez, Şahimerdan; Derviş, Sibel
Crown and root rot, caused by the Oomycete pathogen Phytophthora palmivora, has become a destructive disease of apricot and cherry in eastern Turkey. There are no currently registered fungicides labeled for its control. In greenhouse experiments conducted in 2012 and 2013, 1-year-old potted apricot rootstock Zerdali and cherry rootstock Mahaleb plants were treated either with foliar spray of fosetyl-Al (140, 160, and 180 g a.i./100 l) or phosphorous acid (187.5, 200, and 215 g a.i./100 l) or soil drench of 100 ml of metalaxyl-M (= mefenoxam)+mancozeb (12+192, 16+256, and 20+320 g a.i./100 l) one day after wound inoculation of crowns and roots. In both years, phosphorous acid at 200 and 215 g a.i./100 l, fosetyl-Al at 160 and 180 g a.i./100 l, and metalaxyl-M+mancozeb at 20+320 g a.i./100 l significantly reduced the root rot severity on Zerdali by 70.68-80.00% and crown rot severity on both Zerdali and Mahaleb, by 68.32-91.96 and 74.21-82.60%, respectively, compared with phosphorous acid at 187.5 g a.i./100 l, fosetyl-Al at 140 g a.i./100 l, metalaxyl-M+mancozeb at 12+192 and 16+256 g a.i./100 l and control. Moreover, fosetyl-Al at 180 g a.i./100 l and metalaxyl-M+mancozeb at 20+320 g a.i./100 l significantly reduced the root rot severity on Mahaleb compared to fosetyl-Al at 140 and 160 g a.i./100 l, metalaxyl-M+mancozeb at 12+192 and 16+256 g a.i./100 l, phosphorous acid treatments and control in 2012, providing the best control of the disease by 88.00-90.68%. Two/three phosphorous acid foliar applications at 200 g a.i./100 l suppressed symptom development when field applications were made on a curative basis in 2014 and 2015.
Acute Effects of Combined and Isolated Caffeine and Theanine Supplementation on Physical and Cognitive Performance in Competitive Athletes: A Randomized, Double-Blind, Placebo-Controlled Crossover Study
(Frontiers Media SA, 2026) Erkan, Dilara; Gundem, Mehmet Can; Sari, Cengizhan; Akca, Firat; Ozdenk, Serhat; Yildirim, Ulas Can; Tuncer, Selin Yildirim
Introduction Modern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination. Evidence regarding the acute effects of caffeine (CAF), L-theanine (TEA), and their combination remains inconsistent, particularly with respect to their combined influence on physical and cognitive performance in athletic populations. This study examined the acute effects of isolated and combined CAF and TEA supplementation on maximal strength, intermittent aerobic endurance, and eye-hand coordination in competitive athletes. It was hypothesized that the combined ingestion of CAF and TEA would differentially affect physical performance and eye-hand coordination outcomes compared with isolated CAF or TEA intake.Methods Twenty trained athletes completed four randomized, double-blind, placebo-controlled crossover conditions: CAF (3 mgkg-1), TEA (200 mg), CAF+TEA (COM), and placebo (CON), with >= 72 h washout. Outcomes included isometric leg, back, and handgrip strength; Yo-Yo Intermittent Endurance Test Level 1 performance; and visuomotor coordination (CogniFit (R)). Data were analyzed using repeated-measures ANOVA with Bonferroni corrections (alpha = 0.05).Results Condition effects were found for leg strength (p = 0.004, eta p2 = 0.24) and back strength (p = 0.008, eta p2 = 0.19). In the COM condition, no additional or synergistic effect on maximal strength was observed. Additionally, no significant difference was found between the conditions in aerobic endurance, maximum isometric handgrip strength, and hand-eye coordination results. Caffeine ingestion did not differ from placebo for any strength outcome under the present conditions. Finally, acute ingestion of TEA was associated with reduced maximal isometric leg and back strength compared with CAF and CON.Discussion Findings challenge the prevailing assumption of CAF + TEA synergy and underscore the need for task-specific interpretation of co-supplementation strategies. Future studies should evaluate dose-response interactions, habitual caffeine intake, sex-specific responses, and broader cognitive domains beyond visuomotor control. The randomized controlled trial was registered at ClinicalTrials.gov, under the registration number NCT07268573.Clinical Trial Registration ClinicalTrials.gov, NCT07268573.
Adapting To Conflict: Iran's Proxy Warfare Strategy in
(Kafkas University Iibf, 2025) Kazdal, Melıh
Bu çalışma İran’ın, Suriye ve Yemen’de vekalet savaşını nasıl kullandığını incelemektedir. Çalışmada vekalet savaşı kavramsal çerçevesi kullanılmış ve sahadaki uygulaması Andrew Mumford’un ortaya koyduğu dörtlü çerçeve olan, insan gücü temini, askeri malzeme temini, finansal yardım ve askeri olmayan yardım üzerinden incelenmiştir. Çalışmada, hem vakalar içindeki hem de vakalar arasındaki durumların incelenmesine olanak tanıyan çoklu vaka analizi yöntemi kullanılmıştır. Bu yaklaşımı kullanarak vakaların benzerliklerini, farklılıklarını ve altında yatan nedenleri ortaya koymak amaçlanmıştır. Suriye ve Yemen’in vaka analizi için seçilmesi, İran’ın bölgedeki vekalet savaşı stratejisinin değerlendirilmesine olanak tanıyan farklı çevresel ve sosyo-politik faktörlere dayanmaktadır. Çalışmanın zaman aralığı Arap Baharı sürecinin başlangıcından sonraki on yılı kapsamakta ve Kasım Süleymani'nin öldürülmesi ile sona ermektedir. Bu çalışma, İran’ın, esnek bir vekalet savaşı stratejisi kullandığını, değişen savaş dinamikleri ve çatışma noktalarına göre yaklaşımını değiştirdiğini göstermektedir.
Citation - WoS: 6
Citation - Scopus: 9
Adaptions in subsistence strategy to environment changes across the Younger Dryas-Early Holocene boundary at Kortiktepe, Southeastern Turkey
(Sage Journals, 2022) Emra, Stephanie; Benz, Marion; Sıddıq, Abu Bakar; Özkaya, Vecihi
The site of Körtiktepe in southeastern Turkey is one of few sites in the Upper Mesopotamia basin that attests continuous, permanent occupation across the boundary from end of the colder, drier Younger Dryas (YD) into the comparatively wetter and warmer Early Holocene (EH). This allows for the study of the degree of environmental change experienced on a local level over this boundary as well as for the study of the adaptations that the occupants of the site undertook in response to these changes. The mammal assemblage of Körtiktepe remains relatively stable across the YD – EH transition with the main contributors to diet being mouflon (Ovis orientalis) and red deer (Cervus elaphus) in approximately the same quantities, although the contribution of aurochs (Bos primigenius) increases in the EH. The most significant changes can be seen in the shift in avifauna remains, with a sharp increase of waterbirds during the EH. It is proposed that these shifts reflect changes in the local environment with an increase in woodland cover as well as expansion of local waterways, which is generally consistent with previously published archaeobotanical studies. In terms of species exploited, mortality profiles as well as size distribution of mammals, a great deal of continuity is observed. This suggests that over this particular period the local impact of the beginning of the Early Holocene was not overly dramatic, allowing for cultural continuity of previously established subsistence strategies.
Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği Türkçe Formunun Geçerlilik ve Güvenirlik Çalışması
(Atatürk Univ, 2025) Turfan, Esın Ceber; Yeşil, Yeşim; Eksıoglu, Aysun; Buyrukoğlu, Rabia Ceren; Ceber Turfan, Esin; Sel, Rabia Ceren
Amaç: Bu çalışma “Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği” nin Türkçe’ ye uyarlanması, geçerlik ve güvenirliğinin belirlenmesi amacıyla yapılmıştır. Yöntemler: Kesitsel ve metodolojik tasarımda yürütülen çalışmaya 15-20 yaş aralığında 140 adölesan anne dahil edilmiştir. Türkiye'nin Güneydoğu Anadolu bölgesindeki bir ikinci basamak sağlık kuruluşunda uygulanan çalışmada örneklem seçimi, gönüllülük esasına dayalı olarak gerçekleştirilmiştir. Veriler, Tanımlayıcı Bilgi Formu ve Adölesan Annelerde Emzirme Destek İhtiyaçları Ölçeği kullanılarak toplanmıştır. Ölçeğin dil geçerliliği uzman görüşleri ile sağlanmış ve kapsam geçerliliği değerlendirilmiştir. Verilerin değerlendirilmesinde faktör analizi, Cronbach alfa ve madde analizleri uygulanmıştır. Bulgular: Analizler sonucunda ölçek 17 madde ve üç alt boyuttan oluşmuştur. Alt boyutlar (1) Değerlendirme ve Bilgilendirme, (2) Emzirme Davranışına Destek ve (3) Bireysel Emzirme Desteği olarak isimlendirilmiştir. Doğrulayıcı faktör analizine göre, model uyum indeksleri x²⁄SD=2,579, GFI=0,805, CFI=0,865, NFI=0,800, RMSEA=0,076 olarak hesaplanmış ve modelin iyi uyum gösterdiği saptanmıştır. Maddelerin faktör yükleri 0,486-0,855 arasındadır. Ölçeğin Cronbach Alfa katsayısı 0,911 olarak bulunmuş olup, korelasyon katsayıları 0,326 ile 0,762 arasında değişmektedir. Sonuç: Analizler, ölçeğin Türkçe formunun geçerli ve güvenilir bir araç olduğunu göstermektedir. Bu ölçek, adölesan annelerin emzirme sürecindeki destek ihtiyaçlarını belirlemek ve sağlık çalışanlarının bu ihtiyaçları ne ölçüde karşıladığını değerlendirmek için uygun bir araç olabilir.
Citation - WoS: 63
Citation - Scopus: 63
Adolescent Transport and Unintentional Injuries: a Systematic Analysis Using the Global Burden of Disease Study 2019
(Elsevier Sci Ltd, 2022) Peden, Amy E.; Cullen, Patricia; Francis, Kate Louise; Moeller, Holger; Peden, Margaret M.; Ye, Pengpeng; Ivers, Rebecca Q.
Background Globally, transport and unintentional injuries persist as leading preventable causes of mortality and morbidity for adolescents. We sought to report comprehensive trends in injury-related mortality and morbidity for adolescents aged 10-24 years during the past three decades. Methods Using the Global Burden of Disease, Injuries, and Risk Factors 2019 Study, we analysed mortality and disability-adjusted life-years (DALYs) attributed to transport and unintentional injuries for adolescents in 204 countries. Burden is reported in absolute numbers and age-standardised rates per 100 000 population by sex, age group (10-14, 15-19, and 20-24 years), and sociodemographic index (SDI) with 95% uncertainty intervals (UIs). We report percentage changes in deaths and DALYs between 1990 and 2019. Findings In 2019, 369 061 deaths (of which 214337 [58%] were transport related) and 31.1 million DALYs (of which 16.2 million [52%] were transport related) among adolescents aged 10-24 years were caused by transport and unintentional injuries combined. If compared with other causes, transport and unintentional injuries combined accounted for 25% of deaths and 14% of DALYs in 2019, and showed little improvement from 1990 when such injuries accounted for 26% of adolescent deaths and 17% of adolescent DALYs. Throughout adolescence, transport and unintentional injury fatality rates increased by age group. The unintentional injury burden was higher among males than females for all injury types, except for injuries related to fire, heat, and hot substances, or to adverse effects of medical treatment. From 1990 to 2019, global mortality rates declined by 34.4% (from 17.5 to 11.5 per 100 000) for transport injuries, and by 47.7% (from 15.9 to 8.3 per 100000) for unintentional injuries. However, in low-SDI nations the absolute number of deaths increased (by 80.5% to 42 774 for transport injuries and by 39.4% to 31 961 for unintentional injuries). In the high-SDI quintile in 2010-19, the rate per 100 000 of transport injury DALYs was reduced by 16.7%, from 838 in 2010 to 699 in 2019. This was a substantially slower pace of reduction compared with the 48.5% reduction between 1990 and 2010, from 1626 per 100 000 in 1990 to 838 per 100 000 in 2010. Between 2010 and 2019, the rate of unintentional injury DALYs per 100 000 also remained largely unchanged in high-SDI countries (555 in 2010 vs 554 in 2019; 0.2% reduction). The number and rate of adolescent deaths and DALYs owing to environmental heat and cold exposure increased for the high-SDI quintile during 2010-19. Interpretation As other causes of mortality are addressed, inadequate progress in reducing transport and unintentional injury mortality as a proportion of adolescent deaths becomes apparent. The relative shift in the burden of injury from high-SDI countries to low and low-middle-SDI countries necessitates focused action, including global donor, government, and industry investment in injury prevention. The persisting burden of DALYs related to transport and unintentional injuries indicates a need to prioritise innovative measures for the primary prevention of adolescent injury. Copyright (C) 2022 The Author(s). Published by Elsevier Ltd.
Citation - WoS: 7
Citation - Scopus: 17
Adsorptive Performance of Magnetic Nano-Biosorbent for Binary Dyes and Investigation of Comparative Biosorption
(Springer international Publishing Ag, 2019) Tarhan, Tuba; Tural, Bilsen; Boga, Kenan; Tural, Servet
The individual and competitive biosorption capacities of Metanil Yellow (MY) and Reactive Black 5 (RB5) by glutaraldehyde cross-linked magnetic chitosan nanoparticles (GMCNs) were studied. Competitive biosorption of the MY and RB5 dyes by the GMCNs has never been reported previously. Fourier transform infrared technique has been used to show the biosorbed MY and RB5 dyes onto GMCNs. During the studies, various essential factors influencing the biosorption, like adsorbate concentration, pH of the solution and contact time have been monitored.The equilibrium was achieved within 17 h for single dyes and 3 h for binary mixture at pH 3. The biosorption capacities were 620 mg/g for dye MY and 2549 mg/g for dye RB5 at pH 3, 30 degrees C. The second-order kinetic model has good compatibility with the dynamical biosorption behavior of a single dye and binary mixture. In order to study the competition biosorption of the RB5 and MY dyes in mixture solutions, the intraparticle diffusion model was used. Competition biosorption through analysis of the intraparticle diffusion model apparently favored the RB5 dye more than the MY dye on the GMCNs in mixture solutions. The biosorbent was regenerated efficiently through the alkaline solution and was then reused ten times for biosorption-desorption cycles.
Citation - WoS: 2
Advanced Detection of Retinal Diseases Via Novel Hybrid Deep Learning Approach
(int information & Engineering Technology Assoc, 2023) Aykat, Sukru; Senan, Sibel
Diabetic drusen, choroidal neovascularization (CNV), and macular edema (DME) are some retinal diseases that can cause severe blindness and vision loss. Early diagnosis of retinal diseases is vital to prevent this irreversible damage to the eye. The problem statement of this study can be given as presenting new deep learning based results for detecting these retinal diseases. For this purpose, OCT dataset was used to detect CNV, DME and Drusen patients. This data set, which is frequently used in the literature, consists of CNV, DME, Drusen and Normal retina images. RestNet50, InceptionV3, InceptionResnetV2, MobileNet, DenseNet-201, Xception, EfficentNetB4, EfficentNetB7 and EfficentNetV2S models of the CNN architecture were applied to the data set and the performance results of these models were obtained. Then, in order to increase the classification performance of each of these models, hyperparameter tuning was performed by reducing the learning rate by half in each epoch. Later, a hybrid version of the EfficientNetV2S and Xception convolutional neural network models, the most successful of these hyperparameter-tuned models, was developed. The performance analysis results of our proposed hybrid deep learning model are given by comparing them with traditional deep learning models in the literature. These comparison results show that the classification success of the proposed model is higher than the success of traditional deep learning models in the literature. Thus, the proposed hybrid model can shorten the clinical diagnosis time. In addition, the costs of healthcare services can be reduced by intervening in treatable diseases earlier, instead of more costly interventions in the advanced stages of the disease.
Citation - WoS: 2
Citation - Scopus: 2
Advanced Fault Classification in Induction Motors for Electric Vehicles Using a Stacking Ensemble Learning Approach
(MDPI, 2025) Benkaihoul, Said; Khadar, Saad; Ozupak, Yildirim; Aslan, Emrah; Almalki, Mishari Metab; Mossa, Mahmoud A.
This study proposes an innovative stacking ensemble learning framework for classifying faults in induction motors utilized in Electric Vehicles (EVs). Employing a comprehensive dataset comprising motor data, such as speed, torque, current, and voltage, the analysis encompasses six distinct conditions: normal operating mode, over-voltage fault, under-voltage fault, overloading fault, phase-to-phase fault, and phase-to-ground fault. The proposed model integrates Gradient Boosting (GB), K-Nearest Neighbors (KNN), Gradient Boosting (XGBoost), Support Vector Machine (SVM), Decision Tree (DT), and Random Forest (RF) algorithms in a synergistic manner. The findings reveal that the RF-GB-DT-XGBoost combination achieves a remarkable accuracy of 98.53%, significantly surpassing other methods reported in the literature. Performance is evaluated through metrics including accuracy, precision, sensitivity, and F1-score, with results analyzed in comparison to practical applications and existing studies. Validated with real-world data, this study demonstrates that the proposed model offers a groundbreaking solution for predictive maintenance systems in the EV industry, exhibiting high generalization capacity despite complex operating conditions. This approach holds transformative potential for both academic research and industrial applications. The dataset used in this study was generated using a MATLAB 2018/Simulink-based Variable Frequency Drive (VFD) model that emulates real-world EV operating conditions rather than relying solely on laboratory data. This ensures that the developed model accurately reflects practical electric vehicle environments.
Citation - WoS: 12
Citation - Scopus: 14
Air Quality Forecasting Using Machine Learning: Comparative Analysis and Ensemble Strategies for Enhanced Prediction
(Springer Int Publ Ag, 2025) Ozupak, Yildirim; Alpsalaz, Feyyaz; Aslan, Emrah
Air pollution poses a critical challenge to environmental sustainability, public health, and urban planning. Accurate air quality prediction is essential for devising effective management strategies and early warning systems. This study utilized a dataset comprising hourly measurements of pollutants such as PM2.5, NOx, CO, and benzene, sourced from five metal oxide sensors and a certified analyzer in a polluted urban area, totaling 9,357 records collected over one year (March 2004-February 2005) from the Kaggle Air Quality Data Set. A comprehensive comparison of ten machine learning regression models XGBoost, LightGBM, Random Forest, Gradient Boosting, CatBoost, Support Vector Regression (SVR) with Bayesian Optimization, Decision Tree, K-Nearest Neighbors (KNN), Elastic Net, and Bayesian Ridge was conducted. Model performance was enhanced through Bayesian optimization and randomized cross-validation, with stacking employed to leverage the strengths of base models. Experimental results showed that hyperparameter optimization and ensemble strategies significantly improved accuracy, with the SVR model optimized via Bayesian optimization achieving the highest performance: an R2 score of 99.94%, MAE of 0.0120, and MSE of 0.0005. These findings underscore the methodology's efficacy in precisely capturing the spatial and temporal dynamics of air pollution.

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