Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(74)
- Akkurt, Nevzat(39)
- Celik, Erkan(35)
- Serdar, Osman(35)
- Güler, Ömer(33)
- Kutlu, Banu(32)
- Paksoy, Mehmet Yavuz(32)
- Yucesan, Melih(31)
- Tekin, H.O.(30)
- Yildirim, Numan(30)
- Yildirim, Nuran Cikcikoglu(30)
- ALMisned, Ghada(28)
- Mete, Suleyman(26)
- Danabas, Durali(20)
- Ince, Muharrem(20)
- Serin, Faruk(20)
- Ates, Mehmet(19)
- Can, Erkan(19)
- Onat, Onur(18)
- Benzer, Fulya(17)
- Kocabaş, Mehmet(17)
- Tanyol, Mehtap(17)
- Kizak, Volkan(16)
- Alataş, Mevlüt(15)
- Aydin, Rahmi(15)
- Kahraman, Gökhan(15)
- Kilic, G.(15)
- Polat, Alper(15)
- Susam, Selim Orhun(15)
- Xu, Qian(15)
- Aslan, Naim(14)
- Guler, Omer(14)
- Gürler, Nedim(14)
- Karatay, Gülnaz(14)
- Utku, Anıl(14)
- Yildirim, N. C.(14)
- Özkul, İskender(14)
- Demirol, Ferhat(13)
- Erguven, Gokhan Onder(13)
- Firat, Erhan(13)
Yayınlar
- MakaleYalnız künye2027Scopus SJRQ2Design, structural characterization, and simulated radiation-transport assessment of high-entropy (GdErSmEuYb)2X2O7 (X = Hf, Zr, Ce, Si) rare-earth oxides
Güler, Ömer; Güler, Seval Hale; Yayla, Nihal; Baykal, Duygu Sen; Durmus, Hasan; Tekin, Huseyin Ozan; ALMisned, Ghada
This study investigates the structural, microstructural, surface-chemical, and radiation attenuation behaviour of high-entropy rare-earth oxide (HEO) powder compositions synthesized as TBC-related candidate coating materials, whose radiation attenuation potential was assessed within a computational Inconel-718-based sandwich model. Four compositions, namely (GdErSmEuYb)2Hf2O7, (GdErSmEuYb)2Ce2O7, (GdErSmEuYb)2Zr2O7, and (GdErSmEuYb)2Si2O7, were synthesized via high-energy ball milling followed by calcination at 1200 °C. X-ray diffraction results revealed the formation of distinct crystal structures depending on B-site chemistry, including defective fluorite and silicate-type phases. SEM-EDS mapping confirmed homogeneous elemental distribution, while XPS analysis demonstrated mixed valence states and different oxygen vacancy concentrations across the compositions. To evaluate radiation attenuation performance, a sandwich-type geometry consisting of a 10 mm Inconel-718 core with symmetrically defined simulated HEO layers was modelled using Monte Carlo simulations. Gamma-ray transmission was analyzed over an energy range of 0.276-1.332 MeV, and fast neutron attenuation was assessed at 4.5 MeV. The results showed that transmission factors decreased with increasing coating thickness, with the effect being more pronounced at lower photon energies. Among the investigated compositions, the Hf-based system exhibited the most favorable predicted attenuation response for both gamma rays and fast neutrons under the defined simulation conditions. Theoretical half-value layer calculations also showed good agreement with the simulation results. Overall, the findings indicate that high-entropy rare-earth oxide coatings may provide an additional radiation attenuation contribution when incorporated as layers in Inconel-718-based systems. However, since direct thermal-barrier properties such as thermal conductivity, thermal diffusivity, thermal cycling resistance, and thermal-stress behavior were not evaluated in the present work, the present study should be interpreted as a structural and radiation-transport assessment of TBC-related coating candidates rather than a direct demonstration of thermal-barrier performance.
- MakaleYalnız künye2026Investigation of flow design and deflector plate effect in air cooled battery pack at different discharge rates
Tuğan, Volkan; Yardımcı, Uğurcan
In this study, the effect of different flow designs and the use of deflector plates on the thermal performance of an air cooled battery pack was investigated using the CFD method. Model A, which has a conventional single inlet flow structures, was compared with Model B, which employs dual inlets and deflector plates. In both models, 24 cylindrical 18650 lithium-ion battery cells were used, and the inlet and outlet surface areas of the battery pack were designed to be equal. Analyses performed at 3C and 4C discharge rates showed that the dual inlet flow structure and deflector plates significantly improved the cooling efficiency of the battery pack. At a 3C discharge rate, the maximum battery temperature and maximum temperature difference obtained with Model B were 1.87 K and 1.08 K lower, respectively, compared to Model A. At a 4C discharge rate, this improvement became even more pronounced, with the maximum battery temperature reduced by 2.49 K and the maximum temperature difference decreased by 1.44 K. Examination of the temperature contours revealed that, in Model A, heat accumulation occurred particularly in the rear regions, whereas Model B achieved a more homogeneous temperature distribution.
- Derleme MakaleYalnız künye2026Creative Drama in Physical Education: A Systematic Review and Thematic Synthesis of National and International Studies
Şahin, Aykut
This study aims to analyze and report on national and international studies on creative drama in physical education from a comparative perspective. By presenting the research designs, sample profiles, intervention durations, and key findings of the studies examined, it seeks to synthesize the relevant literature, identify methodological trends, and highlight potential research gaps. In line with this purpose, the study was designed as a systematic review. A comprehensive literature search was conducted across Google Scholar, Web of Science, Scopus, Dergipark, the YÖK National Thesis Center, and EBSCO. After applying the inclusion and exclusion criteria, a final total of 30 studies was selected for analysis. The analysis of the selected studies was conducted using descriptive content analysis and thematic synthesis. According to the findings, this method emerged as a model that holistically integrates cognitive, affective, and psychomotor domain gains rather than merely teaching technical skills. In conclusion, it was established that creative drama is not merely a playful activity in physical education instruction but rather a pedagogical tool that helps students make sense of their physical movements, supports the socialization process, and facilitates the development of embodied cognition. Therefore, creative drama should be positioned at the center of the pedagogical process in physical education instruction. In teacher training programs, creative drama should be structured in alignment with a curriculum integrated with classroom management, inclusive education, and values education. To ensure the sustainability of this practice, teachers should be supported through leadership training based on creative drama. In terms of research, it is recommended that the field shift toward mixed-methods approaches incorporating longer-term qualitative designs rather than relying predominantly on short-term quantitative studies. Particular attention should be given to under-researched groups such as high school students, professional athletes, and participants in various sports disciplines. At the national level, collaborations with arts institutions will help ensure that creative drama becomes a sustainable and institutionalized pedagogical approach.
- MakaleYalnız künye2026Spor bilimleri fakültesi öğrencilerini öğrenim görmeye yönelten nedenler ve sosyalleşme taktiklerinin incelenmesi
Bulut, Mesut; Söyler, Didem Yavuz
Çalışma Fırat Üniversitesi Spor Bilimleri Fakültesi Öğrencilerini Öğrenmeye Yönelten Nedenler Ve Sosyalleşme Taktiklerinin İncelenmesi amacını taşımaktadır. Çalışmanın evrenini Fırat Üniversitesi Spor Bilimleri Fakültesinde öğrenim gören 1560 öğrenci oluştururken, örneklemi ise yapılan power analizi sonucuna göre tesadüfü yöntem ile seçilmiş 284 öğrenci oluşturmuştur. Çalışmaya katılan öğrencilerin Öğrenmeye Yönelten Nedenler ve Sosyalleşme Taktiklerinin İncelenmesi amacıyla kişisel bilgi formu ve “Bogler ve Somech (2002) tarafından geliştirilen ve Özkan (2011) tarafından Türkçeye uyarlama çalışmaları yapılan “Yükseköğrenim Görme Nedenleri Ölçeği” (YÖGNÖ) ve “Sosyalleşme Taktikleri Ölçeği” (STÖ) kullanılmıştır.” İstatistiki program sayesinde oluşturulan frekans ve yüzde analizleri yapılıp, ikili gruplarda t testi, çoklu gruplarda ise varyans analizi (Anova), ayrıca gruplar arasındaki farklılıkları bulmada Tukey testinden yararlanılmıştır. Sonuç olarak; spor bilimleri fakültesinde öğrenim gören öğrencileri öğrenmeye yönelten nedenlerde cinsiyet açısından incelendiğinde kadın öğrencilerin erkek öğrencilere oranla eğitsel açıdan daha çok öğrenmeye yöneldikleri görülürken, yaş değişkenine göre 23 yaşındaki öğrencilerin diğer yaş gruplarındaki öğrencilere oranla sosyalleşme düzeylerinin daha yüksek olduğu tespit edilmiştir. Çalışmaya katılan bireylerin bölüm değişkine göre antrenörlük bölümü öğrencilerinin eğitsel nedenlerle, rekreasyon bölümü öğrencilerinin ise sosyal nedenlerden dolayı öğrenmeye daha çok yöneldikleri görülmüştür. Yine spor bilimleri fakültesi öğrencilerini öğrenmeye yönelten nedenler ve sosyalleşme taktiklerine yönelik korelasyon testine göre de orta düzeyde anlamlı bir ilişkiye rastlandığı tespit edilmiştir.
- MakaleYalnız künye2026BİST Sürdürülebilirlik Endeksinde Döngüsel Ekonomi Performansı: Yenilenebilir Enerji Sektörü Uygulaması
Çeviren, Seher Meral
Bu çalışmanın amacı, BİST Sürdürülebilirlik Endeksi yenilenebilir enerji sektöründe listelenen kuruluşların, iklim değişikliği ekseninde döngüsel ekonomi performanslarının karşılaştırmalı olarak analiz edilmesidir. Çalışmada, döngüsel ekonomi ile İklim Değişikliği Performans Endeksi (CCPI) boyutlarının bütünleştirildiği özgün bir model önerilmiştir. Araştırma kapsamında 2021-2024 yılları arasında BİST Sürdürülebilirlik Endeksi’nde listelenen 11 yenilenebilir enerji kuruluşunun sürdürülebilirlik, entegre ve faaliyet raporları incelenmiştir. Karar probleminde temel alınan yedi kritere ilişkin veriler, içerik analizi yöntemiyle nicel hale getirilmiş; kriter ağırlıkları ENTROPİ yöntemiyle belirlenmiş ve performans sıralamasında ORESTE yönteminden yararlanılmıştır. Modelin sağlamlığı, ORESTE projeksiyon parametresinin (R = −1, R = 1, R = 2) farklılaştırıldığı kapsamlı bir duyarlılık analiziyle sınanmıştır. ENTROPİ sonuçları, en belirleyici kriterin 2021 yılında su tüketimi ve verimliliği, 2022–2023 yıllarında sera gazı emisyonu ve azaltımı, 2024 yılında iklim politikası olduğunu ortaya koymaktadır. Bu değişim, sektörün raporlama konusunda iklim yönetişimi odağına doğru kaydığına işaret etmektedir. ORESTE sıralamasına göre; 2021-2023 arasındaki dönemde ENERJİSA’nın, 2024 yılında ise AYDEM’in raporlama temelli döngüsel ekonomi performansının yüksek olduğu tespit edilmiştir. Duyarlılık analizi, modelin R parametresine karşı yüksek düzeyde sağlam olduğunu doğrulamıştır. Araştırmanın bulguları, raporlama temelli bir performans değerlendirmesi niteliği taşıdığından, fiili çevresel sonuçları doğrudan temsil etmemektedir. Çalışma; yöneticilere iklim odaklı raporlama stratejisi geliştirmede, politika yapıcılara ise ESRS uyumlu zorunlu raporlama çerçevelerinin tasarımında yol gösterici nitelikte sonuçlar sağlamaktadır.
- MakaleYalnız künye2026Evaluation of the Effects of Chrysin in Rats Developed with Lead Acetate-Induced Neurotoxicity Using Biochemical, Histopathological, and Immunohistochemical Methods
Kandemir, Fatih Mehmet; Benzer, Fulya; Küçükler, Sefa; Yildirim, Serkan; Kandemir, Özge; Dalkılınç, Elif; Uçar, Aybüke Gözde Gültekin
Lead (Pb) is a heavy metal with high toxicity that can cross the blood-brain barrier and accumulate in brain tissue, causing serious neurological disorders. The aim of this study is to evaluate the potential protective effect of chrysin (CHR) against Pb-induced neurotoxicity. Thirty-five male Sprague Dawley rats were divided into five groups: Control, CHR (50 mg/kg), Pb, Pb+CHR (25 mg/kg), and Pb+CHR (50 mg/kg). Rats were administered CHR (25 or 50 mg/kg) and Pb (30 mg/kg) orally for 7 days. Twenty-four hours after the last treatment, the rats were sacrificed under mild sevoflurane anesthesia by decapitation, and brain tissue samples were collected. Biochemical and histopathological methods were used to measure cholinergic enzyme activity, DNA damage, and oxidative stress parameters in brain tissue. CHR reduced levels of glial fibrillary acidic protein (GFAP), acetylcholinesterase (AChE), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) caused by Pb. Due to its antioxidant properties, CHR decreased Pb-induced lipid peroxidation while increasing glutathione (GSH) levels and the activities of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx). Based on biochemical and immunohistochemical analyses, CHR reduced cyclooxygenase-2 (COX-2), myeloperoxidase (MPO), nuclear factor kappa-B (NF-κB), neuronal nitric oxide synthase (nNOS), prostaglandin E2 (PGE-2), and p53 levels. These findings suggest that CHR may exert a therapeutic effect by alleviating oxidative stress and inflammation induced by Pb-induced neurotoxicity.
- MakaleYalnız künye2026Rol temelli tutkunluk ölçeği: türkçeye uyarlama, geçerlik ve güvenirlik çalışması
Sezgin, Eray Ekin
Çalışanın belli bir işle ilgili rollerine duyduğu tutku seviyesini ve bu rollere ne kadar zaman, enerji ve çaba harcadığını ifade eden rol temelli tutkunluk kavramı, çalışanın işe kattığı anlamı ve öznel tecrübelerini yansıtarak klasik bağlılık anlayışını aşan bütüncül bir bakış açısı sunmaktadır. Bu bağlamda, çok rollü iş ortamlarında (özellikle üniversitelerde) rol temelli tutkunluğun araştırılması, bireysel performans ve örgütsel verimliliği anlamada kritik bir öneme sahiptir. Ulusal literatürde, geçerli ve güvenilir ölçüm araçlarının eksikliği nedeniyle tutkunluk alanındaki araştırmaların yetersiz kaldığı düşünülmektedir. Bu çalışma ile Young vd. (2020) tarafından geliştirilmiş 12 ifade ve 4 boyuttan oluşan rol temelli tutkunluk (RTT) ölçeğinin geçerlik ve güvenirlik çalışmasını yapmak amaçlanmıştır. Ölçek, kapsam, yapı ve ölçüt geçerliği açısından analize tabii tutulmuştur. Ölçeğin son şekliyle hazırlanan anket formu, üniversite çalışanlarına (n=188) uygulanmıştır. Ölçüt geçerliği için ölçeğin toplamı ve alt boyutları ile iş tatmini arasındaki ilişki incelenmiş ve bu ilişkilerin pozitif ve anlamlı olduğu bulunmuştur. Ulaşılan sonuçlar, ölçeğin orijinal yapısına uygun şekilde “örgüte tutkunluk”, “işe tutkunluk”, “yöneticiye tutkunluk” ve “iş arkadaşlarına tutkunluk” olmak üzere dört faktörden oluşan bir yapıya sahip olduğunu göstermektedir. Bu doğrultuda, Rol Temelli Tutkunluk Ölçeği, yapılan geçerlik ve güvenirlik çalışmaları sonucunda, ulusal literatürde kullanılabilecek ve araştırmalarda güvenilir veriler elde edilmesine olanak tanıyacak bir ölçüm aracı olarak kabul edilebilir.
- MakaleYalnız künye2026Türk Adalet Sembolü: Töreana Türk Adalet Düşüncesinde Töre Düzeni ve Sembolik Temsil
Narter, Sami
Bu çalışma, Türk töre sisteminin tarihsel ve normatif yapısından hareketle geliştirilen “Töreana” modelini hukuk teorisi, siyasal meşruiyet ve sembolik temsil bağlamında incelemektedir. Araştırmanın amacı, Türk adalet düşüncesinin dayandığı temel ilkeleri ortaya koymak ve bu düşünsel mirasın sembolik düzeyde nasıl temsil edilebileceğini değerlendirmektir. Çalışmada tarihsel inceleme, kavramsal analiz ve sembolik çözümleme yöntemleri birlikte kullanılmış; Orhun Yazıtları, Türk devlet geleneğine ilişkin kaynaklar ve töre literatürü karşılaştırmalı olarak incelenmiştir. Araştırma sonucunda, törenin yalnızca geleneksel davranış kuralları bütünü olmadığı; siyasal meşruiyetin, toplumsal düzenin ve normatif üstünlüğün temel unsurlarından biri olarak işlev gördüğü tespit edilmiştir. Türk adalet anlayışının kişileştirilmiş kutsal figürlerden ziyade töre merkezli normatif düzen anlayışı üzerinden şekillendiği görülmüştür. Bu çerçevede geliştirilen Töreana modeli; açık göz, töre asası, boş terazi ve kurultay merkezli yapı gibi semboller aracılığıyla adalet, meşruiyet ve hukukun üstünlüğü ilkelerini görünür kılan analitik bir temsil olarak değerlendirilmiştir. Sonuç olarak çalışma, Türk adalet düşüncesinin sembolik temsil kapasitesine dikkat çekmekte ve Töreana modelini bu düşünsel mirasın çağdaş bir sembolik hukuk modeli olarak önermektedir.
- MakaleYalnız künye2026Scopus SJRQ1Influence on the thermoelectric characteristics of the growth parameters of BiSeTe thin films
Yüzüak, G. Durak; Yüzüak, E.
This study systematically investigates the influence of magnetron sputtering parameters on the structural, electronic, and thermoelectric properties of 100 nm thick Bi2SexTe3-x thin films deposited on Si(100). The initial parameters for applied film deposition are used to set the x value. The films are fabricated with sputtering powers ranging from 30 to 100 W and pressures from 3 to 15 mTorr, with films grown under optimal conditions selected for post-deposition annealing at 523 K. A comprehensive characterization suite, including X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), atomic force microscopy (AFM), and Kelvin probe force microscopy (KPFM), is used to establish direct correlations between processing, structure, and performance. XRD analysis reveals that increasing the sputtering pressure from 3 to 15 mTorr was critical for enhancing film crystallinity and promoting a strong (015) preferred orientation, while AFM showed a corresponding increase in average grain size from similar to 46 to similar to 60 nm via heat treatment (HT). EDS shows that films grown at 10 mTorr were almost certainly stoichiometric, but increasing the power to 15 mTorr caused tellurium deficiency. The films exhibited a power factor ranging from 2.5 to 2.8 mW m(- 1) K- 2 at 40 degrees C. HT improved the Seebeck coefficient from -115 mu V K- 1 to -140 mu V K- 1 and decreased the electrical resistivity by over 25 % through defect reduction and enhanced crystalline order. KPFM supported these findings, directly linking the crystallographic texture to the surface electronic structure and enhanced Seebeck effect.
AtıfWoS2OpenAlex2
İncele - MakaleYalnız künye2026Scopus SJRQ2Practical one-step solvothermal synthesis of photoactive lanthanum(III)hydroxide-metaborate composite nanosheets with suitable band gap for optoelectronics
Karaduman, Oktay
Rare earth compounds, including lanthanide hydroxides, have been greatly interested for their promising uses, such as in optoelectronics or photonics, due to their unique electronic and optical transitions properties based on their 4f electron shells. In this work, for the first time new transparent flower-like lanthanum(III)hydroxide (La(OH)3) with borate (LaB3O6) composite nanosheets having a semiconducting band gap suitable for optoelectronics were synthesized by a very simple one-step solvothermal method from a mixture of pure lanthanum oxide and boron without using water or any acidic solvent or surfactant. The practical synthesis was made for two different solvothermal time durations. The synthesized nanocomposites were investigated by XRD, FIB-SEM imaging, EDS, FTIR, UV-vis absorbance, Raman, Ellipsometry, and TG-DTA analyses. The pure precursors lanthanum oxide (La2O3) and boron converted to La(OH)3 and LaB3O6. EDS elemental mapping showed the homogeneous distribution of elements in the nanocomposites. A strong deep-UV absorbance band was detected. The very low reflectance and excellent visible transmittance (exceeding 86% for the sample with a longer solvothermal process time) reaching infrared region were achieved. The direct and indirect band gap energies were estimated by the Tauc plot method for both of the composite samples. Adding boron reduced the literature given direct band gap value (around 4.5-5.5 eV) of pure La(OH)3. DTA and TGA results revealed the steps of mass losses, including decomposition of La(OH)3. FTIR analyses confirmed the presence of the formed compounds. All results showed that the La(OH)3+LaB3O6 nanocomposites can be suitably used in related applications, including electro-optic, photonic, solar cell, catalysts etc.
- MakaleYalnız künye2026Scopus SJRQ2OBITUARY Prof. Dr. Mehmet Seyitdanlıoglu, flowed from our eyes to our hearts...
Çakmak, Yalcin
- MakaleYalnız künye2026The effect of a professional development program on e-learning readiness and digital fluency: a study with higher education academics
Demiralp, Demet; Gunduzalp, Seda
Purpose This study aims to determine the effectiveness of a targeted professional development program in enhancing two critical competencies for higher education academics in the digital age: e-learning readiness and digital fluency.Design/methodology/approach This study used a pretest-posttest control group model within a quasi-experimental framework with 46 academics. The experimental group (n = 23) participated in a six-week training program, whereas the control group (n = 23) received no intervention. Data were collected using validated scales for e-learning readiness and digital fluency.Findings Findings demonstrated that the experimental group experienced considerable gains in both e-learning readiness and digital fluency scores. In contrast, no significant changes were observed in the control group, providing strong evidence of the program's effectiveness.Originality/value Unlike most descriptive studies in the field, this study provides quasi-experimental evidence of program effectiveness regarding professional development interventions. It offers an empirically validated model from a T & uuml;rkiye higher education context, providing valuable insights for university administrators and policymakers internationally who are facing similar challenges.
- MakaleYalnız künye2026Scopus SJRQ2From assistance to dependence: The nexus between AI dependence and workplace cognitive engagement
Uyan, Umut; Ibin, Adil
Background The increasing integration of artificial intelligence (AI) tools into workplace practices has reshaped how employees process information and perform cognitive tasks. While these systems are often associated with superior efficiency, their excessive use may entail significant cognitive costs. Objective Grounded in automation complacency perspective and the growing literature on technology addiction, this study investigates how dependence on artificial intelligence is associated with cognitive engagement in the workplace, with particular attention to the mediating role of cognitive fatigue. Methods Adopting quantitative research design, data were collected from 246 academic and administrative staff who actively use AI tools in their daily work routines. Partial Least Squares Structural Equation Modeling (PLS-SEM) was used to test the theoretical model proposed. Results The findings indicate that dependence on AI was positively associated with cognitive fatigue (beta = 0.569; t = 13.468; p = 0.000) and negatively with cognitive engagement (beta = -0.174; t = 2.503; p = 0.012). In addition, the relationship between cognitive fatigue and cognitive engagement was found to be negative and statistically significant (beta = -0.207; t = 2.773; p = 0.006). Mediation analysis further revealed that cognitive fatigue partially mediates the relationship between dependence on AI and cognitive engagement (indirect effect beta = -0.118, t = 2.724, p < .01; VAF = 40.5%). Conclusion These results suggest that higher levels of dependence on AI correspond to higher employee cognitive fatigue, which in turn relates to lower cognitive engagement at work. By empirically demonstrating the cognitive costs of AI reliance, this study contributes to the emerging literature on workplace AI and technology addiction.
- MakaleYalnız künye2026The Historical-PoliticalJourney of Nominalism from William of Ockham to Foucault
Palanci, Cihan
Nominalism is one of the fundamental ontological-epistemological trajectories that crystallized within Medieval philosophy and played a decisive role in the constitution of modern thought. Rooted in the Ancient Greek debate on universals, this concept attained a systematic structure during the Middle Ages, becoming a horizon that defines the boundaries of modern philosophical practices. Various philosophical and political traditions have problematized established philosophical orthodoxy through the conceptual possibilities offered by nominalism. This study examines the reception of nominalism by different thinkers within the framework of critical theories, specifically focusing on Michel Foucault's historical nominalism. Furthermore, the article analyzes how nominalism, as one of the most potent theoretical foundations of anti-essentialist thought, nourishes the ontological ground of contemporary social movements and how the legacy of William of Ockham is reproduced within an oppositional habitus.
- MakaleYalnız künye2026The Voice of European Turks: The Establishment, Broadcasting Practices, and Cultural Role of Germany-Licensed Kanal Avrupa Television
Senol, Sengul
Kanal Avrupa Television is a Germany-licensed Turkish-language media organization that has broadcast continuously since 2004. This study examines its role in supporting cultural memory, identity negotiation, Turkish-language continuity, social participation, and connections with T & uuml;rkiye among Turkish communities in Germany and other parts of Europe. Using a qualitative single-case study and document-analysis approach, the research evaluates the channel's institutional development, broadcasting mission, program content, audience orientation, and digital-platform activities. The findings suggest that Kanal Avrupa Television functions as a diaspora media institution and communicative public sphere in which the identity of the European Turk is articulated and negotiated. Its programs provide opportunities for cultural representation, inter-generational transmission of language and traditions, discussion of social and political concerns, and maintenance of transnational connections. The analysis also identifies economic sustainability, digital transformation, generational change, and editorial independence as important challenges affecting the channel's future. By examining these institutional and cultural dimensions, the study contributes to scholarship on diaspora media, migration, cultural identity, and collective memory.
- MakaleYalnız künye2026Scopus SJRQ2An integrated process for rare earth elements recovery and silica production from Turkish bauxite-related ores
Uysal, Turan; Erüst, Ceren; Erdemoglu, Murat; Sis, Hikmet
The evaluation of bauxite-associated shales as a secondary source of rare earth elements (REEs) is strategically important for securing a sustainable supply of critical raw materials used in advanced technologies. In this study, shale ore associated with bauxite, unsuitable for aluminium production due to its high silica content, was investigated as a potential resource for valuable REEs. The effect of thermal activation on REE recovery was examined, and the potential use of the leach residue as a silica source was assessed. Based on acid leaching results, the optimum calcination temperature was identified as 700 degrees C. Under these conditions, high REE recoveries were achieved: 92.9% La, 89.9% Ce, 89.0% Pr, 88.7% Nd, and 73.0% Sm. After leaching, the residue was enriched in alumina and silica. To improve silica purity and recover remaining REEs and Al, a second-stage leaching process was applied. This resulted in a byproduct containing 55% SiO2 with a specific surface area of 48 m2 g-1, indicating its potential as a silica source. The results demonstrate that bauxite-associated shale can be sustainably valorised through intensive milling, calcination, and acid leaching, enabling efficient REE recovery and the production of a silica-rich byproduct. L'& eacute;valuation de schistes associ & eacute;s & agrave; la bauxite comme source secondaire d'& eacute;l & eacute;ments de terres rares (ETR) est strat & eacute;giquement importante pour garantir un approvisionnement durable en mati & egrave;res premi & egrave;res critiques utilis & eacute;es dans les technologies avanc & eacute;es. Dans cette & eacute;tude, on a examin & eacute; le minerai de schiste associ & eacute; & agrave; la bauxite, inappropri & eacute; & agrave; la production d'aluminium en raison de sa teneur & eacute;lev & eacute;e en silice, comme ressource potentielle d'ETR pr & eacute;cieux. On a examin & eacute; l'influence de l'activation thermique sur la r & eacute;cup & eacute;ration des ETR et l'on a & eacute;valu & eacute; l'utilisation potentielle du r & eacute;sidu de lixiviation comme source de silice. D'apr & egrave;s les r & eacute;sultats de la lixiviation acide, on a identifi & eacute; la temp & eacute;rature optimale de calcination & agrave; 700 degrees C. Dans ces conditions, on a obtenu des r & eacute;cup & eacute;rations d'ETR & eacute;lev & eacute;es: 92.9% de La, 89.9% de Ce, 89.0% de Pr, 88.7% de Nd et 73.0% de Sm. Apr & egrave;s la lixiviation, le r & eacute;sidu & eacute;tait enrichi en alumine et en silice. Afin d'am & eacute;liorer la puret & eacute; de la silice et de r & eacute;cup & eacute;rer les ETR et l'Al restants, on a appliqu & eacute; une deuxi & egrave;me & eacute;tape de lixiviation. Cela a engendr & eacute; un sous-produit contenant 55% de SiO2 et pr & eacute;sentant une surface sp & eacute;cifique de 48 m2/g, indiquant son potentiel en tant que source de silice. Les r & eacute;sultats d & eacute;montrent que le schiste associ & eacute; & agrave; la bauxite peut & ecirc;tre valoris & eacute; de mani & egrave;re durable par broyage intensif, calcination et lixiviation acide, permettant une r & eacute;cup & eacute;ration efficace des ETR et la production d'un sous-produit riche en silice.
- MakaleYayıncıda açık erişim2026Scopus SJRQ1Effects of 8-week plyometric training program on balance, reaction time, and attention on elite adolescent female taekwondo athletes
Genç, Harun; Türkmen, Mustafa; Tekin, Irem; Cigerci, Ali Erdem; Gürses, Veli Volkan; Kizar, Oktay; Ökmen, Mehmet Serif; Polatcan, Ismail; Gündogdu, Serhat Dogu
Introduction: Taekwondo is a complex combat sport requiring high levels of strength, balance, reaction time, attention, agility, and endurance for effective performance under rapid offensive and defensive conditions. This study aimed to investigate the effects of an 8-week plyometric training program on static balance (SB), dynamic balance (DB), reaction time (RT), and attention (AT) in adolescent female taekwondo athletes. Methods: Twenty female athletes (age: 14.85 +/- 1.53 years; height: 162.27 +/- 7.12 cm; body mass: 56.69 +/- 6.45 kg) voluntarily participated in the study at Mardin Halit Demir Martial Arts Club. Participants were randomly assigned to either an experimental group (EG, n = 10) or a control group (CG, n = 10). The EG performed plyometric training twice weekly for 8 weeks in addition to regular taekwondo training, while the CG continued only taekwondo training. Static balance was defined as the primary outcome, whereas dynamic balance, reaction time, and attention were considered secondary outcomes. A 2 & times; 2 repeated-measures analysis of variance (group & times; time) was used to examine intervention effects. Results: Significant group & times; time interactions were observed for static balance and dynamic balance (p < 0.05), favoring the experimental group. However, no significant group & times; time interactions were found for reaction time or attention (p > 0.05). Discussion: These findings suggest that plyometric training may effectively improve balance performance in adolescent female taekwondo athletes, particularly static and dynamic balance. However, no significant effects were observed for reaction time or attention. Further studies with larger sample sizes are needed to clarify the potential effects of plyometric training on cognitive performance.
- MakaleYalnız künye2026Examining the Effect of Digital Sports Games on the Motivation Levels of Secondary School Students Regarding Participation in Sports Activities
Bozkurt, Eyup; Toker, Oguzhan; Aldim, Umit Ferit; Akgün, Tarik Fikret; Tümen, Tugba; Erdogan, Ramazan
The aim of this research is to examinethe effect of digital sports games on themotivation levels of secondary school students in participating in sports activities.The research was conducted using a correlational survey model, one of the quantitative research methods, and the researchgroup consisted of 141 volunteer students(80 male, 61 female) studying at the secondary school level in different provincesduring the 2024-2025 academic year. Apersonal information form and the DigitalSports Games Motivation Scale, developedby Kim and Ross (2006) and expanded byCianfrone et al. (2011), were used as datacollection tools. The SPSS software package was used for data analysis, and significance was accepted as p < 0.05. According to the research findings, it was determined that the students' motivation levels for digital sports games were generallyat a moderate level. The sub-dimensionswith the highest motivation were identified as team commitment, entertainment,and socialization. No statistically significant difference was found in digital sportsgame motivation levels according to gender, height, body weight, place of residence, income level, and parental educa-tion level variables (p > 0.05). Regarding the weekly digital game playing timevariable, a significant difference was foundonly in the entertainment sub-dimension;students who played digital sports gamesfor 5-8 hours a week had higher entertainment levels than the other groups (p <0.05). In conclusion, it can be said thatdigital sports games play a motivating rolefor secondary school students, especially inthe dimensions of entertainment and teamcommitment, but this effect is related togame time and the quality of interactionwith the game rather than demographicvariables. It is suggested that digital sportsgames should be considered not as an alter-native to physical sports activities, but as asupportive and complementary element tointerest in sports.
- MakaleYalnız künye2026Scopus SJRQ2An Investigation of the Variability of Short-Term Drought with SPEI-Based Severity, Duration and Magnitude Parameters in a Transboundary Basin
Akbas, Ergun; Acar, Ramazan; Eşit, Musa; Koycegiz, Cihangir
Climate change-induced variability in the water budget leads to significant drought events. In this study, severity, duration, and magnitude parameters obtained from 1-month and 3-month series of the Standardized Precipitation Evapotranspiration Index (SPEI) were used to investigate short-term drought from different perspectives. The lower part of the Euphrates-Tigris Basin, which is a transboundary basin, was preferred as the study area within the borders of Türkiye. In this study, monthly total precipitation and monthly mean temperature data for the period 1963–2021 were used. Both graphical (Şen Innovative Trend Analysis) and statistical (Mann–Kendall, Spearman’s Rho, Sen’s Slope Estimator) trend analysis methods were applied to detect, categorize, and analyze the variability of drought. The Combination of Wilcoxon Test and Scatter Diagram (CWTSD) method, which offers both graphical and statistical trend analysis capabilities, was preferred to enhance consistency and facilitate comparison of results. According to the findings, more severe droughts are observed in the eastern part of the basin compared to the western part. Across the basin, severity and magnitude are decreasing, while duration is increasing. The increase in duration indicates that droughts are shifting from short-term to long-term periods. This situation is of great importance in terms of planning agricultural strategies.
AtıfOpenAlex3
İncele - MakaleYalnız künye2026Scopus SJRQ1Compositionally segmented thermoelectric BiSbTe thin films on Cr/Si(100)
Yüzüak, G. Durak; Yüzüak, E.
Compositionally segmented thermoelectric (CS-TE) structures improve thermal energy conversion efficiency across large thermal gradients. However, their increased design complexity complicates performance modeling and optimization. In this study, we fabricate CS-TE BiSbTe thin films on Cr-buffered Si(100) substrates. By adopting a multidisciplinary approach, we aim to broaden the technological applicability and strategic relevance of advanced TE systems. We systematically analyze the influence of deposition pressures (5, 7, and 10 mTorr) on TE performance. Variations in working pressure alter the Bi/Sb atomic ratio in the films, while the Te content remains stable. This enables the controlled formation of CS structures. At 323 K, the power factor (PF) of TE thin films reaches 0.7, 2.4, and 7.3 mW/mK2 under 5, 7, and 10 mTorr deposition conditions, respectively. The Cr-buffered layer significantly improves the electrical conductivity of CS-TE BiSbTe films. We further engineer a p-type single-leg device integrating nanostructured Bi0.35Sb1.65Te3, Bi0.37Sb1.63Te3, and Bi0.4Sb1.60Te3 layers. These materials are optimized to achieve peak TE PF values across a wide temperature range (320 to 500 K) while ensuring robust interfacial adhesion. The CS-TE device generates 3 mW/cm2, showing a 15% improvement over single-composition samples at a 100 K temperature difference.
AtıfScopus3WoS3OpenAlex2İncele
