Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(117)
- Kaya, Yunus(51)
- Şahin, Engin(48)
- İspirli, Hümeyra(47)
- Özen, Soner(46)
- Şenay, Volkan(45)
- Pat, Suat(44)
- Can, Zehra(39)
- Bayraktar, Bülent(37)
- Bayram, Sinan(37)
- Korkmaz, Şadan(36)
- Cuce, Erdem(35)
- Ecem Bayram, Nesrin(33)
- Kutlu, Naciye(33)
- Yilmaz, Mustafa Tahsin(32)
- Artar, Musa(31)
- Ertugrul, Mehmet(30)
- Öner, Erdal(30)
- Ayata, Ümit(29)
- Hasar, Ugur Cem(29)
- Esmer, Yusuf(28)
- Mercan, Emin(27)
- Cuce, Pinar Mert(26)
- Özdemir, Akın(25)
- Çolak, Murat(24)
- Bayram, Ozkan(23)
- Kamiloğlu, Aybike(23)
- Sert, Durmuş(22)
- Ayazoglu, Rabil(21)
- Abdioglu, Murat(20)
- Bayram, Nesrin Ecem(20)
- Kadakal, Mahir(20)
- Kara, Yakup(20)
- Kizil, Hamit Emre(20)
- Tozlu, Alperen(20)
- Birinci, Ahmet(19)
- Gerçek, Yusuf Can(19)
- Battal, Fetullah(18)
- Dirican, Ebubekir(18)
- Ergün, Mustafa(18)
Yayınlar
- MakaleAçık Erişim2025The Effect of Brand Personality and Psychological Ownership of the Brands On Increasing Social Media Engagements of Brands
Kara, Adnan; Nur, Nisa
This research aims to investigate the impact of brand personality and brand psychological ownership on enhancing brands' social media engagement. An online survey was distributed to the entire research population via email through Bayburt University's Student Affairs. Furthermore, the survey link was shared in WhatsApp groups to increase participation. Data collected from 408 participants, including Bayburt University staff, current students, and alumni, between April and June 2023, were analyzed using SPSS 24.0. The findings indicate that the sincerity and competence dimensions of brand personality have a significant positive effect on the interest dimension of social media engagement. However, the excitement and ruggedness dimensions of brand personality do not have a significant effect on the interest dimension. Additionally, the excitement dimension of brand personality has a significant positive effect on the support dimension of social media engagement. In conclusion, brand psychological ownership has a significant positive effect on both the support and interest dimensions of brands' social media engagement.
- MakaleAçık Erişim2025Examining The Effectiveness of Methods Used In Teaching Basic Mathematical Concepts To Preschool Children
Küçük Demir, Betül; Günaydın, Nuray
Purpose: The aim of this study is to examine the teaching methods that can be used during the instruction of basic mathematical concepts to children in the early childhood period (48-60 months) and to determine which method is the most effective. Design/Methodology/Approach: The study utilized a quasi-experimental design, which is one of the quantitative research methods. The study sample consisted of 44 children aged 48-60 months who were continuing their education at public kindergartens under the Ministry of National Education (MEB) in Istanbul. The "Boehm Preschool Basic Concepts Test-3 (BÖÖTKT-3)" was used as the data collection tool. Data were analyzed using descriptive and inferential statistics, and the effectiveness of each method was analyzed with a dependent sample t-test. In addition, variances were found to be homogeneously distributed (p > .05). Since these assumptions were met, the data were analyzed and compared using ANCOVA. Findings: The findings from the analyses revealed that the most effective teaching method for teaching basic mathematical concepts in early childhood was the music-based method, among the methods of music-based instruction, drama, and direct instruction. Highlights: Based on the results obtained from the findings, it is suggested that the music-based teaching method should be actively used in preschool mathematics education in order to increase children's learning outcomes in basic mathematical concepts.
AtıfOpenAlex1
İncele - Derleme MakaleAçık Erişim2025Digitalization and Sustainability Conflict in Society: Waste Culture and Green Consciousness
Kizmaz, Nuran
Sustainability, which is based on the protection of the resources we have within the framework of the global climate crisis, is gaining importance day by day. With the industrial revolution, we see that the daily lives of individuals have become integrated with technology. It is seen that all institutions of society, from communication to economy, from education to politics, have become connected to technology and networks. Thus, the concepts of increasing digitalization and sustainability have become synonymous with each other. In this article, the relationship between the two concepts will be analyzed in a social and environmental context, and their positive and negative aspects will be discussed. This study aims to understand and evaluate the conflict between wasteful culture and green consciousness by addressing the societal implications in the relationship between digitalization and sustainability. By examining how digital technologies have the potential to provide environmental benefits but also how they affect environmental threats such as e-waste, the study aims to reveal the societal consequences arising from this dilemma. Thus, the main question of the research will be tried to be answered whether digitalization provides environmental benefits in line with sustainability goals or deepens the e-waste crisis by triggering a culture of waste. In the research, a literature review will be conducted from qualitative research methods. As a result, inferences will be made on the future potential of sustainable digital technologies by drawing attention to the awareness of the balance between digitalization and green consciousness.
- MakaleYalnız künye2025The Effect of Consumer Minimalism on Sustainable Consumption: The Mediator Role of Perceived Consumer Effectiveness
Yildiz, Tugba; Devecı, Fatma Gorgün
This study aims to determine the effect of consumer minimalism on sustainable consumption and to reveal the mediation effect of perceived consumer effectiveness. The research sample consisted of 1010 consumers aged 18 and above. Structural equation modeling and Process Macro were utilized in data analysis. According to the findings “clutter removal” and “longevity” have an effect on “perceived consumer effectiveness”. Perceived consumer effectiveness has an effect on “rethinking”, “reusing”, “refurbish”, “reuse” and “repurpose”. Further, “clutter removal” and “cautious shopping” has a direct effect on “rethinking”, “refurbish” and “reuse”. “Longevity” has a direct effect on “reusing”, “refurbish” and “repurpose”. Finally, “self-sufficiency” has a direct effect on “rethinking”, “refurbish" and “repurpose”. Mediation effects have been revealed by adding the “perceived consumer effectiveness” variable to the direct effect model for the “clutter removal” and “longevity” dimensions.
AtıfTR Dizin1İncele - MakaleAçık Erişim2025Artificial Intelligence and the Metaverse in Sport: Emerging Trends and Future Directions from a Bibliometric Analysis
Esmer, Yusuf
In recent years, artificial intelligence (AI) and metaverse technologies have found applications in areas such as athlete performance analysis, fan engagement and virtual event management, leading to a growing volume of research in these areas. The aim of this study is to reveal the bibliometric profile of scientific research on AI and metaverse in sports and to increase the knowledge at the intersection of these disciplines by analyzing scientific production and trends in this field. For this purpose, 255 publications on AI and metaverse in sports between 1992-2025 in the Web of Science (WoS) core collection in the period of October 2024 were examined by bibliometric analysis technique. As a result of the analysis, it was concluded that scientific studies on AI and metaverse in sports have increased over the years and attracted more and more attention. Especially the high scientific production in 2022 and the high citation rate in 2013 revealed the potential and importance of these fields. It is possible to say that this study is important in terms of identifying new research/application areas, emphasizing international collaborations, providing important information/data for academia/the sports industry, encouraging interdisciplinary approaches, guiding future studies and contributing to the relevant literature. In future studies, it is considered necessary to conduct more research on AI and metaverse in sports and to develop practical projects. In this context, it is recommended to conduct research to explain the effects of AI and metaverse technologies on sports and how these technologies can be used in sports organizations.
AtıfOpenAlex2TR Dizin1İncele - MakaleAçık Erişim2025Bayburt Yöresel Fermente Süt Ürünlerinden Bakteriyosin Üreticilerinin İzolasyonu, Tanımlanması ve Bakteriyosinlerin Karakterizasyonu
Kaya, Halil İbrahim
Laktik asit bakterileri (LAB), diğer antimikrobiyallerin dışında özellikle ürettikleri bakteriyosinler nedeniyle de antimikrobiyal aktiviteye sahiptir. Bakteriyosinlerin gıda üretiminde kullanılması, gıda güvenliğinin iyileştirilmesi ve raf ömrünün uzatılmasına önemli katkılar sağlamaktadır. Bakteriyosinlerin temel özelliklerinden biri, üreticilerin çeşitliliğine göre yapısal varyasyonlara sahip olmaları ve buna bağlı olarak farklı antimikrobiyal aktivite spektrumlarına sahip olmalarıdır. Bu nedenle, yeni bakteriyosinlerin araştırılması ve karakterize edilmesi gerekmektedir. Bu çalışmada, Bayburt'un yerel fermente süt ürünlerinden bakteriyosin üreten LAB izole edilmiş ve bu bakteriler tanımlanmıştır. Daha sonra bakteriyosin üreten suşların antimikrobiyal spektrumu belirlenmiş ve farklı sıcaklık ve enzimlere karşı duyarlılıkları karakterize edilmiştir. Bakteriyosin üreten LAB sırasıyla Lactobacillus plantarum, Pediococcus pentosaceus ve Enterococuus faecium olarak tanımlanmıştır. Bu suşların sırasıyla 7, 6 ve 4 farklı indikatöre karşı antibakteriyel olduğu bulunmuştur. LAB tarafından üretilen bütün bakteriyosinlerin proteolitik enzimlerle muamele edildiklerinde bakteriyosinlerden kaynaklı aktivitelerini kaybettikleri ve protein yapısında oldukları belirlenmiştir. Bunların sırasıyla, 100 oC 10 dakika, 80 oC 10 dakika ve 80 oC 15 dakika ısıl işlem sonrasında stabil olduğu, yani antimikrobiyal aktivitelerini koruduğu tespit edilmiştir.
- Derleme MakaleAçık Erişim2025Digital and Entrepreneurial Education Research is a Different Framework
Durmuş, İbrahim
The research aims to provide a conceptual framework to demonstrate the difference between digital and entrepreneurial education and its development, especially for young individuals. For this purpose, a bibliometric analysis method was employed in the literature for digital and entrepreneurial education research. Research data were taken from the WoS database. Authors who have conducted intensive research on the subject in the literature, keywords they frequently emphasize, country addresses, organizations, the most relevant sources, trending topics, and productivity times are included. The most frequently emphasized terms in digital and entrepreneurial education research are ranked as follows, entrepreneurship, education, entrepreneurial, digital, innovation, digitalization, entrepreneurial intention, entrepreneurship education, digital transformation, and higher education. In research on digital and entrepreneurial education, in the network of co-occurrence relationships of the most emphasized words by the authors, it has been found that entrepreneurship, education, digital, entrepreneurial, innovation, technology, business, digitalization, digital technology, university, digital transformation, entrepreneurial intention, entrepreneurial ecosystem, entrepreneurship education, and entrepreneurial orientation have the strongest relationships. The strongest relationships in terms of centrality and density have been understood as between entrepreneurship, education, entrepreneurial, digital, innovation, digitalization, entrepreneurial intention, digital transformation, COVID- 19, and digital entrepreneurship. Inferences and suggestions were made regarding the research results.
- MakaleAçık Erişim2025Fear of COVID-19 and Depression in Pregnant Women and New Mothers: A Cross-Sectional Study
Kırbaş, Zila Özlem; Sönmez Sarı, Ebru; Aktaş, Elif Odabaşı; Işık, Hafsa Kübra
Purpose: The objective of the study was to determine COVID-19 fear and depression in pregnant women and new mothers. Methods: The study sample consisted of pregnant women and new mothers, who gave birth in the last 1 year, aged 18 years or older, living in a province in the Eastern Black Sea region (n = 259). Data werecollected through a personal-information form, COVID-19 Fear Scale, and PHQ-9. Results: Women's COVID-19 Fear Scalescore mean was 15.28±6.42 and their PHQ-9 mean score was 9.27±5.31. Multiple linear regression analysis showed that the variables of PHQ-9 (p=0.000), educational background (p=0.029), occupational status (p=0.0015) and socioeconomic status (p=0.012) were statistically significant predictors of COVID-19 fear. All variables were found to explain the variance in COVID-19 Fear Scale scores to 16% (R2= 0.164). Conclusion: The women in this study appeared to have a moderate level of COVID-19 fear. PHQ-9, educational background, occupational status, and socioeconomic status were predictors of women's COVID-19 fear. The pandemic period, which is a public health emergency, affects not only the physical health but also the psychological health of pregnant and post-partum women, a particularly vulnerable group. It is very important for midwives and nurses to effectively screen pregnant and post-partum women, particularly vulnerable group, for symptoms of depression and fear, and to provide them with accurate and up-to-date information to protect and improve their health.
- MakaleAçık Erişim2025The Role of Family: Effects on Adolescents’ Body Image and Eating Attitudes
Esgin, Ozge; Erten, Tayyibe; Şahiner, Ayça
Purpose: Adolescence is a critical period of physical, cognitive, and emotional changes, during which body image and eating attitudes are shaped. This study examines the relationship between family-related factors, body image, and eating attitudes among adolescents. Methods: A cross-sectional study was conducted with 300 adolescents (133 girls, 167 boys) from three high schools in Bayburt, Türkiye. The data was obtained by researchers in classes under the supervision of teachers. Body image was assessed using the Body Cathexis and Self Scale, and eating attitudes were evaluated with the Eating Attitudes Test26 (EAT-26). Family-related characteristics, including family type, parental education, and occupation, were collected through a structured questionnaire. Data analysis was performed using the SPSS package program (version 22.0). Results: The mean Body Cathexis and Self Scale score was significantly higher in boys than girls (p0.05). Family type (p=0.009), maternal mortality (p=0.004), and paternal occupation (p=0.035) were significantly associated with eating attitudes, whereas no significant relationship was found between family-related factors and body image (p>0.05). Conclusion: Family structure and socioeconomic status influence adolescent eating attitudes, while body image appears less affected by family-related factors. Interventions targeting adolescent health should address family-based support, particularly for those experiencing maternal loss, and promote body image awareness programs, especially among girls. Future research should explore cultural and psychosocial influences on adolescent health behaviors.
- MakaleAçık Erişim2025Comparison of the Effects of 10 Weeks of Fitness and Kettlebell Workouts on Some Physical Parameters of Sedentary Individuals
Kul, Murat; Boz, Emre; Öktem, Tuncay; Aksoy, Ömer Faruk; Karataş, İsmail; Berk, Hazar Emre; Gök, Umut Diyar; Aydemir, Uğur
In this study, it is aimed to scientifically reveal the changes that may occur in sedentary individuals with fitness and kettlebell training for 10 weeks and to compare these two different training practices. The research group of the study consists of sedentary individuals residing in Bayburt province. The participants included in the study first had anthropometric measurements (height, body weight, skinfold thickness, circumference measurements), diameter measurements, digital back-leg dynamometer measurement, vertical jump performance measurement, maximal 1 repetition "squat" performance measurement, and maximal 1 repetition "deadlift" performance measurement. The participants were randomly divided into two groups and included in the kettlebell and fitness training groups. As a result of the fitness training performed regularly for 10 weeks, it was observed that there were statistically significant differences between the pretest-posttest scores of the participants in shoulder diameter, chest diameter, arm diameter, squat, deadlift, sled, countermovement jump (CMJ) and squat jump (SJ). As a result of the kettlebell training performed regularly for 10 weeks, it was observed that there were statistically significant differences between the pretest-posttest scores of the participants in shoulder diameter, thigh diameter, squat, deadlift, sled, CMJ, SJ and back-leg strength. As a result, it can be said that fitness and kettlebell training are effective training types on the change of physical parameters of sedentary individuals.
- MakaleAçık Erişim2025Ahşap İşleme Endüstrisinde 5S Uygulamasının İş Güvenliği Üzerine Etkisinin Araştırılması
Albayrak, Sirer; Ozdemir, Mustafa; Karatas, Gülbey
Bu çalışmada, Osmaniye’deki bir ahşap işleme atölyesinde 5S yalın üretim yönteminin iş güvenliği üzerindeki etkileri incelenmiştir. Araştırma kapsamında, 5S uygulamasından önce ve sonra 5x5 Matris Risk Değerlendirme yöntemi kullanılarak risk seviyeleri analiz edilmiştir. Uygulama süreci 14 gün sürmüş ve sonuçlar, 5S yönteminin iş güvenliği üzerinde önemli bir iyileşme sağladığını ortaya koymuştur. Risk seviyelerinde %53 oranında bir azalma kaydedilmiştir. Bu durum, 5S yönteminin iş kazalarını önleme ve güvenli çalışma ortamı oluşturmadaki etkinliğini göstermektedir. 5S yöntemi, iş yerinde düzen, temizlik ve standardizasyon sağlayarak yalnızca güvenlik değil, iş verimliliği üzerinde de olumlu etkiler yaratmıştır. Malzeme israfını önlemiş, zaman kaybını azaltmış ve iş süreçlerini daha düzenli hale getirmiştir. Ayrıca, çalışanların iş güvenliği bilinci artmış, daha güvenli ve düzenli bir çalışma ortamı oluşturulmuştur. Ancak, bu çalışma yalnızca bir atölyede gerçekleştirilmiş olup sonuçların diğer sektörlere genellenmesi sınırlıdır. Ayrıca, yöntemin uzun vadeli etkilerinin ve sürdürülebilirliğinin daha fazla araştırılması gerekmektedir. Sonuç olarak, 5S yöntemi, yüksek riskli endüstrilerde iş güvenliğini artırmak ve kazaları önlemek için etkili bir araçtır. Bu yöntemin sürdürülebilirliği için düzenli denetim ve eğitim programları gereklidir. Gelecekteki çalışmalar, yöntemin farklı sektörlerdeki etkilerini ve uzun vadeli faydalarını inceleyerek literatüre katkı sağlayabilir.
- MakaleAçık Erişim2025A Cooperative Physical Activity Intervention to Improve Physical Activity Level and Social Skills of Preschool Children with Autism Spectrum Disorder
Töman, Ufuk; Yarimkaya, Erkan; Aydemir, Uğur
The aim of this study was to evaluate the effects of cooperative physical activities on the physical activity level and social skills of preschool children with autism spectrum disorder. This study used the explanatory mixed-method design consisting of quantitative and qualitative stages. A total of 24 preschool children (12 children with autism spectrum disorder and 12 typically developing children) participated in the study. Children were randomly assigned to an experimental group (child with autism spectrum disorder n = 6; typically developing child n = 6) and a control group(child with autism spectrum disorder n = 6; typically developing child n = 6). Children in the experimental group participated in cooperative physical activities for 6 weeks. The cooperative physical activities consisted of stages such as a general warm-up, a child with autism spectrum disorder and a typically developing child forming a group, group task completion, and a general cool-down. Data were collected using the Personal Information Form, Leisure Time Exercise Questionnaire, Social Skills Assessment Scale and Semi-Structured Interview Form. After cooperative physical activities, a significant increase was observed in the physical activity level (F = 15.163, p < .05, Ƞ² = .603) and social skills (F = 10.213, p < .05, Ƞ² = .505) of the children with autism spectrum disorder in the experimental group. Parents reported that cooperative physical activities were a useful intervention to improve the physical activity level and social skills of children with autism spectrum disorder.
AtıfTR Dizin1İncele - MakaleYalnız künye2025Determination of some surface properties in wax coatings applied on mulberry (Morus alba) wood
Ayata, Ümit
In this study, the surface properties of mulberry (Morus alba) wood treated with wax layers of varying coat numbers were identified and compared. The obtained data were analyzed in a statistical program, revealing generally different results. Except for the h° value, the number of coats factor was found to be significant for all tests in the variance analyses. As the number of coats increased, decreases were observed in the L* value, while increases were found in the b*, C*, and a* values. Increases in the number of coats resulted in a reduction in WI* values in both directions. The highest results in color parameters were observed in the control samples for ho and L* values, whereas for a*, b*, and C* values, they were found in the experimental samples treated with three coats of wax. The ∆E* values measured were 7.65 for one coat, 9.68 for two coats, and 12.02 for three coats of application. Increases in glossiness values were achieved in both directions at 60 and 85 degrees. The application of wax has been found to change certain optical properties of the wood.
- Derleme MakaleAçık Erişim2025A Systematic Review on the Teachers' and Students' Demotivation in EFL Teaching and Learning
Gürlüyer, Meriç; Atmaca, Muhammed
This study aims to understand better the demotivation towards EFL teaching and learning and analyze and synthesize the research studies carried out between March 2017 and December 2022 to illustrate global demotivation. This study's design, which employs the qualitative approach and is based on a systematic, integrative literature review, is descriptive in nature. This study is conducted methodically to create more broadly relevant or generally applicable data on the topic under investigation. Therefore, 57 research articles were chosen for analysis. Document analysis was employed in this study to collect the data. It was found that most participants of these studies encountered demotivation in their English teaching-learning. Their demotivation was affected by the materials, tools, subjects, rules, and community. The results of this study present suggestions for pedagogical implications to impede demotivation among EFL learners. These results may be helpful for researchers to contribute to the existing literature and focus on the areas in which the current research fails to explain.
AtıfOpenAlex1İncele - MakaleAçık Erişim2025Yeni Bir Kayıt ve İlave Notlar ile Türkiye'deki Clubiona (Araneae: Clubionidae) Cinsine Katkılar
Aksan, Nurcan Demircan; Topçu, Aydın
Kese örümcekleri olarak adlandırılan Clubionidae ailesi, çok sayıda cins ve tür içerir. Bu örümcekler dünya çapında geniş bir dağılıma sahiptir. Clubiona Latreille, 1804, 528 tür ile Clubionidae familyasının en fazla türe sahip cinsidir. Bu cinsin Avrupa'da dağılım gösteren 47 türü vardır. Dünyada çok sayıda türü bulunan cinsin, Türkiye’de yalnızca 14 türü bulunmaktadır. Bu türlerin detaylı bir şekilde incelenmesi bölgedeki biyoçeşitliliği anlamamıza önemli katkılar sağlayacaktır. Clubiona cinsine yeni katkılar sağlamak amacıyla Bayburt ilinden örnekler toplanmış ve sistematik açıdan incelenmiştir. Örnekler çalılıklardan, bitki köklerinin arasından ve taş altından toplanmıştır. Türler Olympus SZX-16 stereomikroskop kullanılarak incelenmiş ve ölçümleri yapılmıştır. Bu çalışmada, Bayburt ilinden Clubiona cinsinin bazı üyeleri rapor edilmiştir. C. diversa O. Pickard-Cambridge, 1862 Türkiye'den ilk kez kaydedilmiştir. Yeni kayıtla birlikte C. brevipes Blackwall, 1841, C. neglecta O. Pickard-Cambridge, 1862 ve C. pseudoneglecta Wunderlich, 1994 Bayburt ilinden yeni lokalite kaydı olarak verilmiştir. Türlerin morfolojik karakterleri ve fotoğrafları, yeni kaydın detaylı tanımıyla birlikte sunulmuştur. Ayrıca yeni kaydın dünya dağılımı harita ile gösterilmiştir.
- MakaleAçık Erişim2025Three New Records for Spider (Arachnida: Araneae) Fauna of Türkiye
Aksan, Nurcan Demircan; Avşar, Jülide
As a result of the study carried out in Bayburt province, 3 new records for Türkiye were identified. These species are Agyneta fuscipalpus (C. L. Koch, 1836), Micaria lenzi Bösenberg, 1899 and Synaphris lehtineni Marusik, Gnelitsa & Kovblyuk, 2005. The genus Synaphris Simon, 1894, belonging to the family Synaphridae, which has a very rare distribution, is represented by 11 species worldwide. Only 4 of these species are distributed in Europe. Synaphris lehtineni Marusik, Gnelitsa & Kovblyuk, 2005 is extremely important as it represents the first recorded species of the family Synaphridae in Türkiye. The genus Agyneta Hull, 1911, belonging to the family Linyphiidae, one of the largest spider families in the world, has 201 species globally. Of these, 43 are also found in Europe. Agyneta fuscipalpus (C. L. Koch, 1836) has been added as a new record to the genus, which previously had only 3 species in Türkiye. The genus Micaria Westring, 1851, of the family Gnaphosidae, which has a wide distribution, is represented by 124 species worldwide. Of these, 34 are also found in Europe. Until now, 11 species of this genus have been identified from Türkiye. With this study, Micaria lenzi Bösenberg, 1899 has been recorded for the first time in Türkiye. The samples were collected from rocky areas and under stones. The specimens were identified using a stereomicroscope and photographed using a digital camera. The morphological characteristics and photographs of the new records are presented with their detailed descriptions.
- MakaleAçık Erişim2025Interspecific diversity of endemic Cirsium sommieri Petr.
Sefali, Abdurrahman; Yapar, Yakup
The genus Cirsium is highly polymorphic, and its members often show surprising variations. Cirsium sommieri, an endemic plant in eastern Türkiye, is one of them. An interesting population of Cirsium sommieri was examined morphologically. The distribution of the species in Türkiye was examined, and the samples were compared. And also, some morphological characters, such as leaves, involucre, phyllaries, and achene morphology, were examined comparatively. The geographical distribution of this species is given.
- MakaleAçık Erişim2025First Data on the Spider Fauna of Bayburt, with a New Record and Additional Notes (Arachnida: Araneae)
Aksan, Nurcan Demircan; Batur, Zikra
This study, which is the first araneo-fauna survey in Bayburt province, was carried out around the Bâbertî Campus of Bayburt University between June and September 2023. A total of 38 species belonging to 14 families were identified in the study. These species constitute the first locality records of Bayburt province. Of these species, Titanoeca tristis L. Koch, 1872 is determined as a new record for Türkiye. Also, the presence of Pardosa aquila Buchar & Thaler, 1998 is confirmed by the present study. Detailed descriptions, photographs and world distribution data of both species are presented. In addition, the copulatory organs of Pardosa aquila Buchar & Thaler, 1998 are compared with those of its closest relative, Pardosa italica Tongiorgi, 1966, found in the same region. All species identified in the study area are listed with their world distributions and references in Türkiye. Keywords: Araneae, Titanoeca tristis, biodiversity, Bayburt.
- MakaleAçık Erişim2025The Effectiveness of Advanced Machine Learning Models in IQ Prediction in the Context of Education, Health, and Socioeconomic Indicators
Sebetci, Özel; Ayberkin, Doruk
This study investigates the effectiveness of advanced machine learning models in predicting IQ levels using a diverse set of socioeconomic and health indicators from global databases such as WHO, the World Bank, and United Nations organizations. The research employs various algorithms, including Linear Regression, Random Forest, Gradient Boosting, Support Vector Machines, Ridge and Lasso Regressions, XGBoost, LightGBM, and a Stacking Regressor to capture both linear and non-linear relationships. Evaluation metrics such as Mean Absolute Error (MAE), Root Mean Square Error (RMSE), and R-squared (R²) reveal that LightGBM and Stacking Regressor models excel in accuracy and generalization. The study highlights the trade-off between model interpretability and predictive power, emphasizing that simpler models offer greater transparency. In contrast, more complex models successfully capture intricate interactions among education, health, and economic factors. The findings provide valuable insights for policymakers and researchers, suggesting that machine learning approaches can significantly enhance understanding of the determinants of IQ and aid in developing targeted strategies in education and social policy.
- MakaleAçık Erişim2025Investigating the Relationships Between Oil Prices and Airline Stock Values
Kuloğlu, Eşref
The primary objective of this research is to reveal the causal relationship between the stock values of Turkish Airlines and Pegasus Airlines, both listed on the Borsa Istanbul, and the price of Brent crude oil. Turkish Airlines, a pioneer in this regard, was launched on the stock exchange on December 20, 1990. Pegasus Airlines, Turkey's second-largest aviation company, began trading on the stock exchange on April 26, 2013. In this research, the monthly stock prices of the two airlines between May 1, 2013, and January 31, 2025, as well as Brent crude oil prices during the same period, were used as data. Toda Yamamoto's causality analysis was used. To establish the econometric model used in the study, the stationarity of the time series must first be examined. The unit root tests show that the stock and Brent crude oil values are stationary at level one. Accordingly, the analysis was conducted by adding one to the obtained lag length to calculate the length for the Toda-Yamamoto analysis. The analysis found a unidirectional causality between Brent crude oil prices and the two companies' stocks. The study demonstrates the relationship between two aviation sector companies traded on Borsa Istanbul and the oil variable, a significant expense item, and a key macroeconomic variable. In this regard, due to the limited number of studies conducted on this topic in the literature, this study is expected to fill a significant gap.