Çanakkale Onsekiz Mart University
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Evaluation of spatial land purchase preferences by machine learning method: Çanakkale Ayvacık case
No full textPandemi süreci, kırsal alana göçü tetikleyerek gayrimenkul fiyatlarında hızlı ve sürekli artış yönünde değişimlere neden olmuştur. Kırsal alanda yaşamın özendirildiği bu süreçte yer seçimi tercihleri arazilerin bulunduğu bölge, il-ilce ve köydeki çeşitli hizmet ve kamu binalarına, sosyal tesislerine, eğitim kurumlarına ulaşılabilirlik önemli bir etken olarak göze çarpmıştır. Ayrıca benzeri günlük ihtiyaçların dikkate alındığı konuların yanında manzara ve diğer doğal ortamlara yakınlıkta önemli olmuştur. Arazi fiyatlarının konumsal faktörlere olan mesafeye bağlı olarak farklılık göstermesi, alıcılar ve satıcılar için önemli bir referans oluşturmaktadır. Bu durumun özelikle yerleşme isteğinin yoğun olduğu bir bölgede nasıl gerçekleştirildiği sorusuna açıklık getirilmelidir. Bu değişimler konumun yanında ilan ve satın almanın hangi mevsim olduğuna göre de değişiklikler göstermektedir. Bu bağlamda, Coğrafi Bilgi Sistemleri (CBS) ve Makine Öğrenimi (MÖ) yöntemleri kullanılarak, Ocak 2023-Aralık 2023 tarihleri arasında Ayvacık Merkez ve köylerinde satılık arazilerin mekânsal özellikleri ile birim fiyatları arasındaki ilişki incelenmiştir. Araştırma sonuçları, Ayvacık'taki arazilerin birim fiyatlarının Ayvacık Merkez'e uzaklık, köy merkezlerine olan mesafe, denize olan mesafe ve mevsimsel değişkenliklerden etkilendiğini göstermektedir. Merkeze yakın olan köylerdeki arazilerin fiyatlarının daha yüksek olduğu, ancak bazı köylerde mesafe arttıkça fiyatların yükseldiği gözlemlenmiştir. Ayrıca, deniz manzaralı arazilerin estetik değerleri ve turistik potansiyeli, alıcılar arasında önemli bir talep yaratmaktadır. Bu çalışma, yerel gayrimenkul piyasasının dinamiklerini anlamak ve sürdürülebilir bir gelişim sağlamak açısından kritik bir öneme sahiptir. Arazi fiyatlarının doğru bir şekilde belirlenmesi, yatırımcıların bilinçli kararlar almasına ve gayrimenkul piyasasının sağlıklı işlemesine katkıda bulunur.The pandemic period has triggered a migration to rural areas, leading to rapid and continuous increases in real estate prices. During this process, where rural living has been encouraged, the choice of location has been significantly influenced by accessibility to services, public buildings, social facilities, and educational institutions in the regions, provinces, districts, and villages where the lands are located. Additionally, proximity to scenic and natural environments, alongside considerations of daily necessities, has also played a crucial role. The variation in land prices based on distance from spatial factors serves as a critical reference for both buyers and sellers. Clarifying how these changes occur, particularly in regions with high settlement demand, is essential. These variations are influenced not only by location but also by the season in which the listing and purchase occur. In this context, the relationship between the spatial characteristics and unit prices of lands for sale in Ayvacık Center and its villages from January 2023 to December 2023 was analyzed using Geographic Information Systems (GIS) and Machine Learning (ML) methods. The study's findings indicate that the unit prices of lands in Ayvacık are influenced by distance to Ayvacık Center, proximity to village centers, distance from the sea, and seasonal variability. It was observed that land prices are higher in villages closer to the center, but in some villages, prices increase as the distance grows. Furthermore, lands with sea views, due to their aesthetic value and touristic potential, are in high demand among buyers. This study is critically important for understanding the dynamics of the local real estate market and ensuring sustainable development. Accurate determination of land prices contributes to informed decision-making by investors and supports the healthy functioning of the real estate market
Analysis of factors affecting the production satisfaction of ornamental plant produci̇ng agricultural development cooperative partners: s.s bayindir flower producers agricultural development cooperative example
No full textBu araştırma ile süs bitkileri üretiminde kooperatif ortağı olan üreticilerinin mevcut durumu, sorunları, kooperatif ve üretim memnuniyetlerinin belirlenmesi amaçlanmıştır. Bu konuda örnek bir kooperatif olan "S.S. Bayındır Çiçek Üreticileri Tarımsal Kalkınma Kooperatifi" ortaklarından seçilen 95 kişiyle yapılan anketler araştırmanın ana materyalini oluşturmaktadır. Verilerin analizinde yöntem olarak tanımlayıcı istatistikler, ki-kare testleri, skor analizi ve regresyon analizi kullanılmıştır.Anketlerden elde edilen verilerin analizleri sonucunda üreticilerin genellikle küçük aile işletmeleri olduğu, yarıdan fazlasının 10 dekarın altında ve arazi kiralaması yoluyla üretim faaliyetini sürdürdükleri tespit edilmiştir. Diğer taraftan işletmelerin tamamına yakınıaile işgücü ile üretim yapmakta ve teknik personel çalıştırmamaktadır.Üreticiler pazarlama kolaylıkları, uygun fiyata girdi temini ve teknolojik destekalmak amacıyla kooperatife üye olduklarını belirtmişlerdir. Pazarlama, üretim desenin belirlenmesi ve teknik destek bakımından kooperatiften memnun olduklarını, fakat girdi desteği konusunda kooperatiften memnun olmadıkları üreticiler tarafından ifade edilmiştir. Üretici sorunları açısından bulgular incelendiğinde ekonomik sorunlar ilk sırada gelirken, maliyetlerin yüksekliği, fiyat istikrarsızlığı ve sektörde KDV'nin yüksek olması üreticiler tarafından ifade edilmiştir. Üreticilerin tamamının tarım sigortası yaptırmamış ivolması ve sözleşmeli tarım yapmamaları sektörde risk yönetimi açısından zayıf yönleriniaçıkça ortaya çıkarmaktadır. Kısaca özetlenecek olursa kooperatif ortaklarının kooperatiften fayda sağlıyor olmaları üretim memnuniyeti açısından önemli bulunmuştur. Sektörde Sözleşmeli Yetiştiricilik Modelinin yaygınlaştırılması, üreticinin tarım sigortası konusunda bilinç düzeyinin geliştirilmesi, %20 olan KDV oranın düşürülmesi, kooperatif ortakları ile yöneticiler arasında iş birliği ve iletişimin artırılması araştırma kapsamında sunulan önerilerdir.This study aims to reveal the demographic characteristics of 95 enterprises that are partners of the Bayındır Flower Producers Agricultural Development Cooperative and the factors affecting cooperative satisfaction and production.According to the research results, the average age of the producers was 50.28, 74.7 percent were male, 38.9 percent were high school graduates, and the average experience period was 18.18 years. It has been determined that 81.5% of businesses prefer family workforce and that there is a shortage of qualified personnel in businesses. The idea that KDV should be reduced was at the top of the producers' opinions about the sector. Among the producers' reasons for becoming members of the cooperative, the first reason was to be affiliated with somewhere, and the reasons were determined as easy marketing, affordable input supply and technical information support. According to producers, the most important functions of the cooperative are expressed as marketing support, providing cheap input and technical information support, respectively. Although the producers were satisfied with the marketing and technical support of the cooperative, they expressed negative opinions about the supply of cheap and quality inputs.In the study, the fact that most of the cooperative partners benefit from the cooperative in terms of marketing, technical information, machinery equipment support, and increasing the product pattern was found to be important in terms of production satisfaction. This shows vithe importance of organization in the sector, and increasing and developing studies on cooperative formation is important for ornamental plants producers to feel less the problems of the sector it is thought to be
A review on cultural heritage management policy documents in the first 100 years of the Republic of Türkiye
No full textKültürel Miras ve Kültürel Miras Yönetimi kavramının tanımı göz önüne alınıp, saha çalışmaları değerlendirildiğinde çalışmaların aksamasındaki en önemli sorunlar sıralamasında mevzuat ve kültür politikalarının uygulamadaki aksaklıkları ilk sıralarda yer almaktadır. Günümüzde Kültürel mirasın yönetimsel bir saha olduğuna ilişkin tecrübelerin sonucunda kültürel miras yönetimi kavramı ortaya çıkmış ve disiplinlerarası bir yaklaşım benimsenmiştir. Bu yaklaşım doğrultusunda koruma kavramının yanı sıra kentleşme, planlama, imar, sürdürülebilirlik gibi kavramların bu yönetimsel sahada olması gerekliliğini ortaya çıkarmıştır. Bilindiği üzere yönetimin aracı üretilen politikalardır. Buradan hareketle; Türkiye Cumhuriyeti'nin kurulduğu 1923 yılından, yüzüncü yılını kutladığımız 2023 yılına kadar geçen yüz yıllık sürede üretilen kültür politikaları her ne kadar literatüre geç giren bir kavram olsa da Türkiye Cumhuriyeti'nin kültürel miras yönetim anlayışını ortaya koymaktadır. Politika belgeleri ve mevzuat hükümleri ışığında, günümüzde yürürlükte olan 2863 sayılı Kültür ve Tabiat Varlıklarını Koruma kanunu, Kalkınma Planları ve taraf olduğumuz Uluslararası Sözleşmeler kapsamı içinde, Kültürel miras öğelerinin tanımları ve sınıflandırmaları, yetkili kurumların görev ve sorumluluk alanları belirtilmektedir. Politika belgelerinin bugünkü şeklini almasında Cumhuriyetin ilanından bugüne birçok kanun çıkmış, mevzuatı yürütmekle görevli kurumların yetki, isim ve görev tanımlarında değişiklikler meydana gelmiştir. Bu değişimlerin kronolojik olarak seyrini hangi siyasi, ekonomik, kültürel ortamda ortaya çıktığı çalışma içerisinde konu edilecektir.When the definition of the concept of Cultural Heritage and Cultural Heritage Management is taken into consideration and field studies are evaluated, the most important problems in the disruption of studies are the deficiencies in the implementation of legislation and cultural policies. Today, as a result of the experiences that cultural heritage is an administrative field, the concept of cultural heritage management has emerged and an interdisciplinary approach has been adopted. In line with this approach, it has become clear that concepts such as urbanization, planning, zoning, and sustainability should be included in this administrative field, in addition to the concept of protection. As is known, the tools of management are the policies produced. Starting from this point; Although the cultural policies produced in the century-long period from the foundation of the Republic of Turkey in 1923 to the year 2023, when we celebrate its centennial, are a concept that entered the literature late, they reveal the cultural heritage management approach of the Republic of Turkey. In the light of policy documents and legislative provisions, the definitions and classifications of cultural heritage elements, the duties and responsibilities of authorized institutions are specified within the scope of the Law No. 2863 on the Protection of Cultural and Natural Assets, the Twelfth Five-Year Development Plan and international agreements to which we are a party. In the formation of policy documents in their current form, many laws have been enacted since the declaration of the Republic, and changes have occurred in the authority, name and duty definitions of the institutions responsible for executing the legislation. The chronological course of these changes and the political, economic and cultural environment in which they occurred will be discussed in the study
Investigation of the probiotic effects of Lactobacillus sakei 2-3 and Candida zeylanoides Y12-3 strains in rainbow trout (Oncorhynchus mykiss, Walbaum 1792)
No full textThis study aimed to assess individual and combined effects of candidate probiotic strains C. zeylanoides Y12-3 and L. sakei 2-3 on growth, hematological parameters, serum immunological parameters, serum biochemistry, histopathology, histomorphology, expression of immune and antioxidant enzyme genes, and disease resistance against L. garvieae in rainbow trout. The fish were fed four different feeds (control, L. sakei 2-3, C. zeylanoides Y12-3, and L. sakei 2-3 + C. zeylanoides Y12-3) for 60 days. At the end of the experiment, growth parameters, serum glucose levels, serum lysozyme activity, and expression of immune and antioxidant enzyme genes were significantly increased in the probiotic groups. Additionally, triglyceride levels decreased in the probiotic groups compared to the control group, whereas serum ALT levels did not change. The villus width and the number of goblet cells increased in the proximal intestines of the fish in C. zeylanoides and L. sakei + C. zeylanoides groups. L. sakei 2-3 showed higher superoxide anion production, expression of immune genes (IgM, IL-B1, lysozyme, TNF-alpha, HSP70) in the kidney, antioxidant enzyme genes (GPX, GST, SOD) in the liver compared to C. zeylanoides. TNF-alpha, HSP70), and antioxidant enzyme genes (GPX, GST, SOD) compared to C. zeylanoides. L. sakei and the combination of L. sakei + C. zeylanoides provided resistance to L. garvieae compared to the control group. However, C. zeylanoides was similar to the other two probiotic groups regarding disease resistance against L. garvieae. However, histopathological examinations revealed reversible changes in the proximal intestine, anterior kidney, and liver of fish in the C. zeylanoides and L. sakei + C. zeylanoides groups. Hence, future studies are still required to explore the effects of shorter-term use of the C. zeylanoides strain in rainbow trout to prevent undesirable effects on tissues. In brief, the findings, as mentioned above, showed that L. sakei 2-3 and C. zeylanoides Y12-3 could be potential probiotic candidates for use in rainbow trout farming. Moreover, the probiotic effects of both strains on different fish species should also be studied.This study is supported by TUBITAK (The Scientific and Technological Research Council of Turkey) [123O011]; TUBITAK (The Scientific and Technological Research Council of Turkey); TUBITAKThis study is supported by TUBITAK (The Scientific and Technological Research Council of Turkey) Project with Number 123O011. We would like to thank TUBITAK for its support
Structural inequalities exacerbate infection disparities
No full textDuring the COVID-19 pandemic, the world witnessed a disproportionate infection rate among marginalized and low-income groups. Despite empirical evidence suggesting that structural inequalities in society contribute to health disparities, there has been little attempt to offer a computational and theoretical explanation to establish its plausibility and quantitative impact. Here, we focus on two aspects of structural inequalities: wealth inequality and social segregation. Our computational model demonstrates that (a) due to the inequality in self-quarantine ability, the infection gap widens between the low-income and high-income groups, and the overall infected cases increase, (b) social segregation between different socioeconomic status (SES) groups intensifies the disease spreading rates, and (c) the second wave of infection can emerge due to a false sense of safety among the medium and high SES groups. By performing two data-driven analyses, one on the empirical network and economic data of 404 metropolitan areas of the United States and one on the daily Covid-19 data of the City of Chicago, we verify that higher segregation leads to an increase in the overall infection cases and higher infection inequality across different ethnic/socioeconomic groups. These findings together demonstrate that reducing structural inequalities not only helps decrease health disparities but also reduces the spread of infectious diseases overall.Austrian Research Promotion Agency (FFG) [873927]Authors thank Zahra Rezazade for her help in designing Fig. 1. Authors thank Lisette Espin Noboa, Samuel Martin-Gutierrez, Jan Bachmann, Amadea Gavrila, and Peter Klimek, for their helpful comments and feedback. Sina Sajjadi and Fariba Karimi were funded by the Austrian Research Promotion Agency (FFG) under project No. 873927
Pediatric Varicella-related Hospitalization in Turkey Between 2008 and 2018: Impact of Universal Single Dose Varicella Vaccine (VARICOMP Study)
No full textBackground: A single-dose varicella vaccine at 12 months of age was introduced to the National Immunization Program in February 2013 in Turkey. This study aimed to evaluate varicella-related hospitalization in children and the impact of a single-dose live attenuated varicella vaccine over the first 5.5 years of introducing a universal varicella vaccination. Methods: We analyzed data collected from the medical records of children 15-year-old groups (P < 0.01 and P < 0.05). The mean age was higher during the post-vaccine period than during the pre-vaccine period (P < 0.001). The absolute number of secondary bacterial infections (P < 0.01), respiratory complications (P < 0.01), and neurological complications (P < 0.001) was significantly lower during the post-vaccine period. The incidence of severe varicella was lower during the post-vaccine period than during the pre-vaccine period (P < 0.001). Conclusions: After 5.5 years of routine single-dose varicella vaccine use, we observed the impact of varicella vaccination on the incidence of varicella-related hospitalizations, especially in the target age group. However, we did not observe herd protection in the other age groups. The implementation of a second dose of the varicella vaccine in the National Immunization Program would help control disease activity. © 2025 Lippincott Williams and Wilkins. All rights reserved
Accuracy of deep learning-based upper airway segmentation
No full textIntroduction: In orthodontic treatments, accurately assessing the upper airway volume and morphology is essential for proper diagnosis and planning. Cone beam computed tomography (CBCT) is used for assessing upper airway volume through manual, semi-automatic, and automatic airway segmentation methods. This study evaluates upper airway segmentation accuracy by comparing the results of an automatic model and a semi-automatic method against the gold standard manual method. Materials and methods: An automatic segmentation model was trained using the MONAI Label framework to segment the upper airway from CBCT images. An open-source program, ITK-SNAP, was used for semi-automatic segmentation. The accuracy of both methods was evaluated against manual segmentations. Evaluation metrics included Dice Similarity Coefficient (DSC), Precision, Recall, 95% Hausdorff Distance (HD), and volumetric differences. Results: The automatic segmentation group averaged a DSC score of 0.915+0.041, while the semi-automatic group scored 0.940+0.021, indicating clinically acceptable accuracy for both methods. Analysis of the 95% HD revealed that semi-automatic segmentation (0.997+0.585) was more accurate and closer to manual segmentation than automatic segmentation (1.447+0.674). Volumetric comparisons revealed no statistically significant differences between automatic and manual segmentation for total, oropharyngeal, and velopharyngeal airway volumes. Similarly, no significant differences were noted between the semi-automatic and manual methods across these regions. Conclusion: It has been observed that both automatic and semi-automatic methods, which utilise opensource software, align effectively with manual segmentation. Implementing these methods can aid in decision-making by allowing faster and easier upper airway segmentation with comparable accuracy in orthodontic practice. (c) 2024 Elsevier Masson SAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies
A psychometric study in children with juvenile idiopathic arthritis: Pain Catastrophizing Scale-Child (PCS-C)- Turkish
No full textThe research aimed to determine the psychometric properties of the Turkish Pain Catastrophizing Scale-Child (PCS-CTr) in children with Juvenile Idiopathic Arthritis (JIA). The study included 125 children (75 with JIA and 50 without JIA). PCS-CTr has been adapted following international translation steps. PCS-CTr was administered twice to 31 children with JIA at 7-14-day intervals. Validity was tested by confirmatory factor analysis and gold standard measures with the Pediatric Quality of Life Inventory and the Visual Analogue Scale. Cronbach's alpha (alpha) for internal consistency and Intraclass Correlation Coefficient (ICC) for test-retest reliability were used. Also, the PCS-CTr scores were compared to each group. Construct (RMSEA = 0.069, CFI = 0.962, TLI = 0.943, X2/df = 1.352) and concurrent validity (r=-0.533) were found good. The final model fits three factors with 13 items. Cronbach's alpha (0.706-0.912) and ICC values (0.649-0.900) were moderate to high. The psychometric quality of the PCS-CTr is good. A reliable and valid assessment tool could be used for children with JIA to assess pain catastrophizing. We recommend the PCS-CTr as a tool for assessing JIA children's pain catastrophizing
A Bibliometric Analysis of Air Cargo: Milestones, Trends, and Future Directions
No full textAir cargo facilitates access to geographically challenging markets with minimal environmental impact. Despite global pandemics, crises, and wars, air cargo transport remains essential for people, even with decreasing demand. This study aims to conduct a bibliometric analysis in the air cargo sector. In this context, this study aims to define the milestones in the history of air cargo transport, the latest highlights and trends, and provide guidance for future research. The analysis period spans from 1956 to 2024. For this purpose, data from the Scopus database was analyzed using VOSviewer software. A tottal of 108 articles were examined through co-citation analysis, revealing the formation of three clusters: Cluster 1 focused on Revenue Management, Cluster 2 on Network, and Cluster 3 on Capacity. Additionally, 215 articles were analyzed to identify the 10 most and least preferred author keywords. The study highlights the authors who will contribute to air cargo research. Most studies in the air cargo field were conducted in 2022, while most articles were published in 2009. The most studied countries include the United States (126), China (69), and Taiwan (57). Researchers are provided with practical implications regarding air cargo operations, management, cost reduction, innovation, technology, safety, and security
Evaluation of ‘Space Invaders’ Within Excessive Shopping Behaviours, Decluttering, and Ecopedagogy
No full textThere have been global economic crises and inflation based on fluctuations of oil price, supply shock, demand shock, and interest rate shock since the 1970s. On the one hand, the cost of living has been increasing and people complain about how life is too expensive. On the other hand, people donate huge amounts of clothes to charity shops in New Zealand and this situation causes a big waste crisis. It is very clear that there is an excessive spending behavior on goods. The aim of this study is to examine the ‘Space Invaders’ TV production in terms of excessive shopping behaviors/shopaholics and decluttering within ecopedagogy. A case study within a qualitative approach was used as methodology in this study. The data was collected by discourse analysis. At the end of this study, three common points were determined: Excessive shopping behavior; cluttered homes and uncontrolled budget. It is thought that ecopedagogy-based education programs should be designed to improve critical thinking skills of people and to change their behavior socially, economically and environmentally. © 2025 Taylor & Francis Group, LLC