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Artificial Intelligence-Assisted Multi-Criteria Decision-Making Methodology: From Research Trends to the Future Roadmap
No full textBibliometric analysis is a popular methodology in recent years that provides valuable insights for literature and researchers by visualizing interesting trends, relationship patterns, and information flow in research areas. This study aims to evaluate the publication trends, author contributions, institutional collaborations, and citation dynamics of this field by examining the integration of Multi-Criteria Decision Making (MCDM) and Artificial Intelligence (AI) with bibliometric analysis methods. This integration optimizes complex decision-making processes and provides faster, consistent, and effective solutions. The analysis was performed using performance analysis and science mapping techniques. Data were collected from the WoS database and 993 articles covering the period from 1992 to 2024 were analyzed. Co-citation, keyword co- occurrence, and co-authorship analyses were visualized with VOSviewer software. Accordingly, India, China and Iran stand out as the countries with the most publications, while the Indian Institute of Technology has the highest contribution. ‘Annals of Operations Research’ and ‘Expert Systems with Applications’ were among the most frequently cited journals. University of Technology Sydney and King Abdulaziz University stood out in institutional collaboration. This study is a pioneering study that conducts bibliometric analysis for AI-MCDM methods, especially in terms of the subject, scope and some of the findings obtained, and has produced valuable insights through data analytics
The transliteration and evaluation of the number 500 of Court Records of Afyon Karahisâr-ı Sâhip
Full text linkŞer'îyye sicilleri tarihin ana kaynaklarından bir tanesidir. İçerdiği belge çeşitliliği ve zenginliği bakımından tarih araştırmacılarının dikkatini çekmiştir. Tarihi bir vak'ayı ya da bir sorunu çözmek için ipucu aranan vazgeçilmez kaynaklar arasında yer almıştır. 500 numaralı Afyon Karahisâr-ı Sâhip Şer'iyye Sicili Defteri, dönemin sosyal, hukuki ve ekonomik yapısına ışık tutan zengin kayıtlar içermektedir. Belgelerde yer alan davalar, taraflar arasındaki ilişkileri ve mahkemenin rolünü ayrıntılı olarak ortaya koymaktadır. Ayrıca sicil, bölgedeki esnaf faaliyetlerinden aile meselelerine kadar geniş bir yelpazede veri sağlamaktadır. İncelenen kayıtlar, Osmanlı vilayetlerinde şer'î düzenin işleyişi hakkında önemli ipuçları sunmaktadır. Hazırlamış olduğumuz bu yüksek lisans tezi H.1054-1055 / M. 1644-1645 yıllarına ait 500 numaralı Afyon Karahisâr-ı Sâhip Şer'îyye Sicili'nin günümüz Türkçesine çevrilerek tanıtılması ve içinde yer alan belgelerin konu ve muhteva bakımından değerlendirilmesinden oluşmaktadır. Bu süreçte belgeye sadık kalıp sistematik bir çözümleme yaparak doküman analizi yöntemini de kullanmak suretiyle verileri bilimsel araştırmaya kazandırdık. Böylece hem tarihî metnin araştırmacıların kullanımına açılmasını sağladık hem de dönemin sosyal, hukukî ve idarî yapısına dair verilerin sağlıklı bir biçimde değerlendirilmesine imkân sunduk. Ortaya çıkan bu çalışma ile şehir tarihçiliğine bir nebze de olsa katkı sağladığımızı düşünüyoruz.Sharia records are one of the main sources of history. It has always whetted the appetite of history researchers due to the variety and richness of the documents it contains. It has become one of the indispensable sources from which clues are sought to solve a historical event or a knot. This registry book contains rich records that shed light on the social, legal and economic structure of the period. The cases in the documents reveal in detail the relationships between the parties and the role of the court. In addition, the registry provides data on a wide range of issues from tradesmen's activities in the region to family matters. The examined records provide important clues about the functioning of the sharia order in the Ottoman provinces. This master's thesis we have prepared consists of translating the Afyon Karahisâr-ı Sâhip Record of Sharia Numbered 500 from 1644-1645 AD into modern Turkish and evaluating the documents in it in terms of subject and content. In this process, we remained faithful to the document and made a systematic analysis, using the document analysis method to bring the data into scientific research. Thus, we both made the historical text available to researchers and provided the opportunity to evaluate the data regarding the social, legal and administrative structure of the period in a healthy way. We think that we have contributed to urban historiography to some extent with this study
Is There a Relationship Between the Dietary Inflammatory Index and Clinical Attachment Loss in Patients with Periodontitis?
No full textObjective The pathogenesis of periodontal diseases is partially driven by oxidative stress. However, studies on the relationship between periodontitis and the inflammatory load of diet are still insufficient. Therefore, this study aimed to examine the relationship between the diet's inflammatory load and periodontitis and clinical attachment loss (CAL). Methods This cross-sectional study included 119 participants diagnosed with periodontitis according to the 1999 classification. The dietary inflammatory index (DII) was calculated using three-day food consumption records and divided into quartiles (Q1, Q2, and Q3). Body mass index (BMI) was calculated as weight and height (kg/m2). Clinical attachment loss (CAL) score was determined, and the patients were grouped with those CAL scores as 7 = 7 CAL. Results Of the 119 patients with periodontitis, aged 46.24 +/- 12.84 years, 45.3% were found to have an anti-inflammatory diet profile (n = 54). When the daily energy and nutrient intake of individuals were examined, it was found that the intake of omega-3 fatty acids (p = 0.004), black tea (p = 0.021), and green pepper (p = 0.029) was higher in those with CAL = 7. There was no relationship between the patients' DII and CAL values. Daily energy, protein, fiber, vitamin A, vitamin E, folic acid, Fe, Zn, and Mg intake in patients with an anti-inflammatory diet in Q1 were higher than in Q2 and Q3 (p < 0.001). Conclusion This study found no relationship between DII levels and CAL scores. However, it was observed that periodontitis patients following an anti-inflammatory diet had higher intakes of omega-3 fatty acids, vitamins A, E, and C, as well as zinc and magnesium which are nutrients known to be effective against inflammation. These patients also had CAL scores below 7. Therefore, reducing the inflammatory load of the diet may prevent the development of periodontitis, and further research in this regard would be beneficial
Computational evaluation of comprehensive properties of MgX3H8 (X=Sc, Ti and Zr) compounds as effective solid-state hydrogen storage materials
Full text linkBu çalışmada, MgX3H8 (X=Sc, Ti, Zr) bileşiklerinin yapısal, mekanik, elektronik, dinamik, termodinamik ve hidrojen depolama özellikleri yoğunluk fonksiyonel teorisi (DFT) kullanılarak incelenmiştir. Daha önce bu bileşiklerin deneysel ya da teorik olarak çalışılmamış olması bu çalışmayı özgün kılmaktadır. Bu malzemeler, katı hal hidrojen depolama için potansiyel olarak umut verici hidrojen depolama malzemeler olarak değerlendirilmiştir. MgX3H8 (X=Sc, Ti, Zr) bileşiklerinin hesaplanan oluşum entalpileri, elastik sabitler ve fonon dağılım grafikleri, bu bileşiklerin termodinamik, mekanik ve dinamik olarak kararlı ve sentezlenebilir olduğunu ortaya koymuştur. B/G oranı, Cp ve Poisson oranı analizleri, MgSc3H8'in gevrek bir malzeme olduğunu, MgTi3H8 ve MgZr3H8'in ise sünek malzemeler olduğunu göstermiştir. Ayrıca, malzemelerin anizotropi faktörü, işlenebilirlik indeksi, sertlik, eime ve Debye sıcaklıkları da detaylı analiz edilmiştir. MgX3H8 (X=Sc, Ti, Zr) bileşiklerinin elektronik bant yapıları incelenmiştir. Bantların (valans ve iletim bantları) ana simetri doğrultuları boyunca Fermi seviyesini kesmesi nedeniyle metalik karakter sergilemiştir. Fonon dağılım eğrileri ve malzemelerin kısmi durum yoğunlukları pozitif frekanslara sahip olup, malzemelerin kübik yapıda dinamik olarak kararlı olduğunu göstermiştir. Gravimetrik hidrojen yoğunlukları MgSc3H8 için % 4.60 (w/w) MgTi3H8 için % 4.38 (w/w) ve MgZr3H8 için % 2.56 (w/w) olarak hesaplanmıştır. Hidrojen desorpsiyon sıcaklıkları MgSc3H8 için 239.54 K, MgTi3H8 için 241.76 K ve MgZr3H8 için 303.87 K olarak bulunmuştur. Malzemelerin mekanik özellikleri, hidrojen depolama için umut verici malzemeler olabileceklerini öne sürmektedir.In this study, the structural, mechanical, electronic, dynamic, thermodynamic, and hydrogen storage properties of MgX?H? compounds (X = Sc, Ti, Zr) were systematically investigated using density functional theory (DFT). To the best of our knowledge, these compounds have not been previously reported in either experimental or theoretical literature. This work represents the first comprehensive investigation of the various physical and chemical characteristics of these materials. They were considered promising candidates for solid-state hydrogen storage applications. The calculated formation enthalpies, elastic constants, and phonon dispersion relations confirmed that MgX?H? (X = Sc, Ti, Zr) compounds are thermodynamically, mechanically, and dynamically stable, indicating their potential synthesizability. Analysis of the bulk-to-shear modulus ratio (B/G), specific heat capacity at constant pressure (Cp), and Poisson's ratio revealed that MgSc?H? exhibits brittle behavior, whereas MgTi?H? and MgZr?H? are ductile in nature. Additionally, key parameters such as hardness, melting temperature, Debye temperature, machinability index, and elastic anisotropy factor were calculated and thoroughly analyzed. Electronic band structure calculations indicated a metallic character for all three compounds, as the valence and conduction bands intersect the Fermi level along high-symmetry directions. The dynamic stability of the cubic phase was further supported by the phonon dispersion curves and partial density of states, both of which exhibited only positive frequencies. The gravimetric hydrogen storage capacities were estimated to be 4.60 wt.% for MgSc?H?, 4.38 wt.% for MgTi?H?, and 2.56 wt.% for MgZr?H?, with corresponding hydrogen desorption temperatures of 239.54 K, 241.76 K, and 303.87 K, respectively. These mechanical and hydrogen storage characteristics suggest that the investigated MgX?H? compounds are promising candidates for use as host materials in solid-state hydrogen storage systems
KÜLTÜREL ZEKÂ, ALGILANAN SOSYAL DESTEK VE GİRİŞİMCİLİK EĞİLİMİNİN DEMOGRAFİK DEĞİŞKENLERE GÖRE İNCELENMESİ
No full textBu çalışmanın amacı, Türkiye'de lisans ve lisansüstü eğitim gören yabancı uyruklu ve Türk vatandaşı öğrencilerin kültürel zekâ, algılanan sosyal destek ve girişimcilik eğilimleri açısından cinsiyet, üniversite, gelir kaynağı ve sergilenen tutum gibi değişkenlere göre anlamlı farklar gösterip göstermediğini tespit etmektir. Araştırma, 2021/2022 eğitim-öğretim döneminde Atatürk Üniversitesi, Fırat Üniversitesi ve İnönü Üniversitesi'nde öğrenim gören 408 yabancı uyruklu ve 877 Türk vatandaşı öğrenci üzerinde gerçekleştirilmiştir. Anket yöntemiyle elde edilen veriler, kültürel zekâ, sosyal destek ve girişimcilik eğilimlerine ilişkin algıları ölçmek için kullanılmıştır. Bulgular, yabancı uyruklu öğrencilerin girişimcilik eğilimlerinin Türk vatandaşı öğrencilere göre daha yüksek olduğunu göstermektedir. Ayrıca, yabancı uyruklu öğrenciler arasında gelir kaynağına göre üstbilişsel kültürel zekâ düzeylerinde anlamlı farklılıklar bulunmuştur. Türk vatandaşı öğrenciler ise kültürel zekâ ve sosyal destek algılarında daha yüksek puanlar almışlardır. Cinsiyet ve gelir kaynağı gibi demografik değişkenler de sosyal destek ve girişimcilik eğilimlerinde farklılıklar yaratmıştır. Bu bulgular, eğitim ve destek programlarının kültürel ve bireysel farklılıkları dikkate alarak tasarlanmasının önemini vurgulamaktadır
Recycling graphite anode material from used batteries
No full textBu çalışmada1,8 V altında kalan atık lityum-iyon pillerin geri dönüşüm süreçleri ve geri dönüştürülen malzemelerin yeniden değerlendirmesi üzerine çalışılmıştır. Geri kazanılan anot malzemesi, hidrometalurjik ve pirometalurjik yöntemlerle saflaştırılmıştır. Analiz sonucunda %99,97 oranla grafitin kalite standartlarını karşılayan ve ticari pil uygulamaları için uygun bir malzeme olduğunu göstermiştir. Çalışmanın sonunda, geri dönüştürülmüş anotlar farklı oranlarda aktifleştirilerek test edilip yeni piller yapılmış ve performansları karşılaştırılmıştır. Elde edilen sonuçlar, hem geri dönüşüm sürecinin etkinliğini hem de geri kazanılmış malzemelerin yeniden kullanım potansiyelini ortaya koymuştur. Atık lityum-iyon pillerin geri dönüşümü, çevresel kirliliğin azaltılması ve sınırlı doğal kaynakların korunması için büyük önem taşımaktadır. Bu süreç, enerji sektöründe sürdürülebilirliği desteklemekle birlikte değerli hammaddelerin ekonomiye kazandırılması yoluyla ekonomik faydalar da sağlamaktadır. Bu tür çalışmalar, döngüsel ekonomi hedefleri doğrultusunda yenilikçi ve çevre dostu çözümler geliştirilmesine katkıda bulunmaktadır.In this study, the recycling processes of waste lithium-ion batteries below 1.8 V and the re-evaluation of recycled materials were studied. The recovered anode material was purified by hydrometallurgical and pyrometallurgical methods. The analysis showed that 99.97% of graphite is a material that meets quality standards and is suitable for commercial battery applications. At the end of the study, recycled anodes were tested by activating them at different rates, new batteries were made and their performances were compared. The results obtained revealed both the effectiveness of the recycling process and the reuse potential of recovered materials. Recycling waste lithium-ion batteries is of great importance to reduce environmental pollution and protect limited natural resources. This process supports sustainability in the energy sector and also provides economic benefits by bringing valuable raw materials into the economy. Such studies contribute to the development of innovative and environmentally friendly solutions in line with circular economy goals
Evaluation of sense of humor, adaptation to treatment and personal well-being of patients undergoing hemodialysis
No full textAimThis study was conducted to evaluate the sense of humor, treatment compliance, and personal well-being levels of patients receiving hemodialysis (HD) treatment.Materials and MethodsThe research was conducted with 131 patients who received HD treatment in two different HD Units in the south of Turkey and agreed to participate in the research. Data were collected using the Personal Information Form, Multidimensional Sense of Humor Scale (MSHS), End-Stage Renal Disease Adherence Questionnaire (ESRD-AQ), and Personal Well-Being Index-Adult (PWI-A).ResultsThe mean MSHS score of the individuals was 62.511 +/- 12.241, the mean ESRD-AQ score was 896.64 +/- 109.89, and the mean PWI-A score was 37.03 +/- 9.64. When the relationships between the age of the patients, duration of HD, and MSHS, ESRD-AQ, and PWI-A are examined, there is a statistically significant negative relationship between age and MSHS and PWI-A. There is no statistically significant relationship between MSHS, ESRD-AQ, and PWI-A. The mean PWI-A scores of those who live separately from their spouses, have an income less than their expenses, have another chronic disease, and receive dialysis four times a week; the mean ESRD-AQ scores of those who receive dialysis four times a week and smoke; and the mean MSHS scores of those who are illiterate, have an income less than their expenses, receive dialysis four times a week, and do not smoke were found to be statistically significantly lower.ConclusionIt is seen that patients receiving HD treatment have a moderate sense of humor, high treatment compliance, and low personal well-being. Sense of humor and personal well-being levels decreased with increasing age, while there was no significant relationship between sense of humor, compliance with treatment, and personal well-being levels. While high compliance with treatment suggests that they have insight, it is recommended that a sense of humor and personal well-being be supported, and counseling services be provided to patients
Creation of Wind Speed Maps and Determination of Wind Energy Potential with Geographic Information Systems: The Case of Kırklareli Province, Türkiye
No full textThe intensive use of fossil fuels for energy production harms the environment. The adoption of sustainable energy systems can reduce the damage. Wind energy is one of the most widely used renewable sources. The most important problem in establishing new wind power plants (WPPs) is estimating the wind energy potential (WEP) in potential installation locations where there are no measured data. Many geographic information system (GIS)-based studies have been conducted on this subject. In this study, based on the technical specifications of a wind turbine selected for the K & imath;rklareli Province of T & uuml;rkiye, wind speed maps at 125 m height were created using many station points with known locations and wind speeds and the WEP of K & imath;rklareli was calculated. In addition, the WEP map of K & imath;rklareli was created by first determining the areas where WPPs cannot be installed and creating the wind speed map. After removing exclusion areas where wind turbines cannot be installed, the wind speeds at 125 m ranged between 3.12 m/s and 8.51 m/s. The wind speed was found to be higher in the south of the province, and the total WEP in areas with wind speeds higher than 6 m/sec was 6628.21 MW
The effects of the pregnant woman's mental visualization of her baby during the non-stress test on maternal anxiety and fetal parameters: A randomized controlled clinical trial
No full textObjective: The aim of this study is to examine the effects of pregnant women's mental visualization of their babies during the non-stress test on maternal anxiety and fetal parameters. Methods: This randomized controlled clinical trial was completed with 64 pregnant women (32 experimental, 32 control). It was conducted in a public hospital located in eastern Turkey. Data were collected using a personal information form, a non-stress test findings form, a baby picture evaluation form, and the State Anxiety Inventory. Results: It was determined that during NST (Non-Stress Test), pregnant women's visualization of their babies reduced the fetal heart rate (t = 2.083, p = 0.041) and fetal movements (t = 2.110, p = 0.039) while increasing the number of accelerations (t = 4.845, p = 0.001). There was no significant difference between the maternal anxiety levels in the experimental group and those in the control group (t = 1.184, p = 0.241). The maternal anxiety levels of the participants in the experimental increased in the posttest compared to the pretest (t = 3.371, p = 0.002). Conclusion: It was determined that the pregnant woman's mental visualization of her baby during the non-stress test reduced the fetal heart rate and fetal movements, increased the number of accelerations, and did not significantly affect maternal anxiety
Prediction of Wind Speed Using Tree-Based Ensemble Algorithms: CatBoost, HistGBM, and XGBoost
No full textBu çalışmada, kentsel bir bölgede rüzgar hızının (V (m/s)) tahmini amacıyla üç gelişmiş ağaç tabanlı makine öğrenimi modeli (XGBoost, HistGradientBoosting (HistGBM) ve CatBoost) karşılaştırılmıştır. Modellerin eğitilmesinde dört yılı kapsayan bir veri seti kullanılmış ve performansları özellikle test verileri üzerinde değerlendirilmiştir. Model başarımını değerlendirmek için karekök ortalama kare hata (RMSE), ortalama mutlak yüzde hata (MAPE), belirleme katsayısı (R²) ve p-değeri kullanılmıştır. RMSE, MAPE ve R² değerleri sırasıyla 0.0416, 0.0089 ve 0.9993 olarak ölçülen XGBoost modeli, tüm modeller arasında en iyi performansı göstermiştir. İkinci en iyi model olan CatBoost, 0.0843 RMSE ve 0.9972 R² değeri ile oldukça başarılı sonuçlar vermiştir. Üçüncü model olan HistGBM ise 0.1174 RMSE ve 0.9946 R² değerine sahiptir. P-değerleri dikkate alındığında, tüm modellerin tahminlerinin istatistiksel olarak anlamlı olduğu görülmüştür. Elde edilen sonuçlar, topluluk türü modelleme algoritmalarının V (m/s) gibi zaman serisi problemleri için oldukça etkili performans sergilediğini göstermektedir. Bu bağlamda, XGBoost yöntemi V (m/s) tahmini uygulamaları için en verimli ve güvenilir yöntem olarak öne çıkmaktadır.In this study, three advanced tree-based machine learning models (XGBoost, HistGradientBoosting (HistGBM), and CatBoost) are compared for predicting wind speed (V (m/s)) in an urban area. A dataset covering four years is used to train the models, and their performance is evaluated, especially on the test data. The root mean square error (RMSE), mean absolute percentage error (MAPE), coefficient of determination (R^2), and P-value are used to evaluate the model's performance. XGBoost is the best amongst all the models with respect to RMSE, MAPE, and R^2 values, which are measured at 0.0416, 0.0089, and 0.9993, respectively. Next, we can have the second best as CatBoost with very successful results, having RMSE of 0.0843 and an R^2 value of 0.9972. The third model, with an RMSE of 0.1174, has an R^2 value of 0.9946. When the p-values are considered, then all estimates of the models is found to be statistically significant. The results indicate that the ensemble type modeling algorithms have very active performance for the time-series problems like estimations of V (m/s). Hence, the XGBoost method is found to be the most efficient and trustworthy for the V (m/s) estimation applications