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Adaptation of the Attitudes Toward Seeking Medical Help Scale to Turkish: A Validity and Reliability Study
No full textBu çalışma, Tıbbi Yardım Aramaya Yönelik Tutum Ölçeğinin Türkçe formunu geliştirerek, geçerlilik ve güvenilirlik analizlerini gerçekleştirmeyi amaçlamıştır. Metodolojik araştırma deseni benimsenmiş ve veriler Ocak-Mart 2025 tarihleri arasında sosyal medya (Facebook, Twitter, Instagram, Threads) ve Whatsapp kullanan bireylerden çevrimiçi olarak toplanmıştır. Örneklem, internet kullanıcıları arasından ölçüt örnekleme yöntemi ile seçilmiş ve dahil edilme kriterlerini karşılayan 272 katılımcıdan oluşmuştur. Veriler, ''Tıbbi Yardım Aramaya Yönelik Tutum Ölçeği'' ve araştırmacı tarafından hazırlanan sosyodemografik bilgi formu kullanılarak toplanmıştır. Ölçek, geri-çeviri yöntemiyle Türkçeye çevrilmiştir. Geçerlilik analizlerinde, kapsam, yüzey ve yapı geçerliliği (AFA, DFA); güvenirlik analizlerinde ise, madde analizi ve Cronbach Alfa katsayıları kullanılmıştır. Kaiser-Meyer-Olkin değeri 0,84; Bartlett küresellik testi değeri χ²(66) = 788,855; p < 0,001 hesaplanmıştır. Model uyum analizinde CMIN/df (χ²/sd) = 1,99 olup, bu değer mükemmel uyumu göstermektedir. GFI = 0,94, AGFI = 0,91 değerleriyle güçlü bir model; CFI = 0,93, TLI = 0,91 ve IFI = 0,93 ile yüksek uyum gösterdiği saptanmıştır. NFI = 0,87 kabul edilebilir uyum aralığında, RMSEA = 0,06, SRMR = 0,05, olup, modelin makul düzeyde hata içerdiği ve genel olarak kabul edilen eşik değerleri karşıladığı görülmüştür. Maddelere ait madde-toplam korelasyon katsayıları 0,30 ile 0,59 aralığında bulunmuş ve her maddenin ölçekle tutarlı bir biçimde davrandığını göstermiştir. Ölçeğin genel iç tutarlılık katsayısı (Cronbach's Alpha) 0,78 bulunmuştur. Sonuç olarak; Tıbbi Yardım Aramaya Yönelik Tutum Ölçeğinin Türk dili ve kültürüne uygun, geçerli ve güvenilir bir ölçek olduğu belirlenmiştir. Anahtar Sözcükler: Tıbbi yardım arama tutumu, tıbbi yardım arama davranışı, ölçek uyarlama, geçerlilik, güvenilirlikThis study aimed to develop the Turkish version of the Attitudes Toward Seeking Medical Help Scale and to conduct its validity and reliability analyses. Adopting a methodological research design, data were collected online between January and March 2025 via individuals using social media (Facebook, Twitter, Instagram, Threads) and WhatsApp. The study sample consisted of individuals from internet users, selected via the purposive sampling method. The sample included 272 participants who met the inclusion criteria. The data were collected using the 'Attitudes Toward Seeking Medical Help Scale' and a sociodemographic information form, which was prepared by the researchers. The scale was translated using the back-translation method. For the validity analyses, content, face, and construct validity were ensured; reliability was evaluated using item-total correlations and Cronbach's alpha coefficient. The Kaiser-Meyer-Olkin (KMO) value was 0.84, and Bartlett's Test of Sphericity was χ²(66) = 788.855, p < 0.001. In model fit analysis, the CMIN/df value (χ²/df) was 1.99, indicating excellent model fit. The fit indices were as follows: GFI = 0.94, AGFI = 0.91, CFI = 0.93, TLI = 0.91 and IFI = 0.93, all showing high model fit. NFI = 0.87 indicated acceptable fit; RMSEA = 0.06 and SRMR = 0.05, suggesting that the model contained acceptable levels of error and met overall fit thresholds. Item-total correlation coefficients ranged between 0.30 and 0.59, showing that the items were consistent with the scale. The internal consistency coefficient (Cronbach's Alpha) was found to be 0.78. As a result, the Turkish version of the Attitudes Toward Seeking Medical Help Scale was determined to be a valid and reliable instrument suitable for Turkish language and culture. Keywords: Medical help-seeking attitude, medical help-seeking behavior, scale adaptation, validity, reliabilit
Intelligent Multi-Objective Decision Support System for Efficient Resource Allocation in Cloud Computing
No full textFerrara, Massimiliano/0000-0002-3663-836X;The dynamic allocation of materials within cloud systems is essential for optimizing system architecture, enhancing energy efficiency, and ensuring compliance with Service Level Agreements (SLA). to address workload imbalance and resource overload issues, this research introduces an Intelligent Multi-Objective Decision Support System (IMODSS) for resource allocation in cloud systems. The proposed framework leverages the novel integration of the Modified Feeding Birds Algorithm (ModAFBA) with the Deep Reinforcement Learning (DRL)-based Q-Learning algorithm to enhance the adaptability and effectiveness of resource management. By combining the dynamic clustering abilities of ModAFBA with the adaptive decision-making of Q-learning, IMODSS effectively prioritises tasks, balances workloads throughout the virtual machine (VM), and improves energy efficiency. Experimental validation using Python and CloudSim demonstrates that IMODSS notably outperforms traditional methods. Specifically, the proposed system reduces makespan by 15% to 20%, energy consumption by 18% to 22%, and VM migrations by 20% to 25% compared to existing cloud-based resource allocation models of HBCA, MOPSO, and TPOSIS. Also, the integration of Q-Learning strengthens the system to manage QoS parameters, such as CPU and memory utilization efficiency and SLA violation control. Therefore, the IMODSS framework effectively scales under varying workload conditions and is a promising solution for next-generation cloud computing environments.Deanship of Scientific Research at Northern Border University, Arar, KSA [NBU-FFR-2025-1563-09]; Universiti Teknologi PETRONAS; STIRF Grant [015LA0-073]The authors extend their appreciation to the Deanship of Scientific Research at Northern Border University, Arar, KSA, for funding this research work through project number NBU-FFR-2025-1563-09. The authors would like to express their sincere gratitude to Universiti Teknologi PETRONAS for funding this research through the STIRF Grant (Cost Center: 015LA0-073). The financial support was pivotal in enabling the successful completion of this research.Science Citation Index Expande
Molecular Imaging Using (Nano)Probes: Cutting-Edge Developments and Clinical Challenges in Diagnostics
No full textMolecular imaging has emerged as a transformative approach in the field of medical diagnostics, enabling the visualization of biological processes at the molecular and cellular levels. Additionally, the integration of molecular imaging with other imaging modalities such as positron emission tomography (PET), magnetic resonance imaging (MRI), computed tomography (CT), photoacoustic imaging (PAI), and fluorescence imaging (FI) has further broadened the scope of diagnostics. Despite significant advances in probe design, including multifunctional and targeted nanomaterials, their clinical translation remains limited by critical challenges. Key obstacles include nanoprobe stability in physiological environments, nonspecific accumulation in the reticuloendothelial system, potential toxicity, and difficulties in achieving optimal biocompatibility and controlled biodistribution. Moreover, the complexity of nanoprobe synthesis and batch-to-batch variability hinder scalable manufacturing and regulatory approval. The primary goal of this review is to critically analyze the current challenges hindering the clinical translation of molecular imaging nanoprobes in biomedicine. While existing literature extensively covers imaging techniques, this review uniquely emphasizes the persistent obstacles-such as nanoprobe stability, biocompatibility, off-target effects, and limited sensitivity-that impede their effective application. Unlike previous reviews, which tend to focus broadly on advancements, we offer a nuanced perspective by identifying specific barriers and proposing promising strategies to overcome them. We explore how surface modification, novel targeting ligands, and smart responsive systems can enhance nanoprobe performance. Furthermore, the review discusses how addressing these challenges is crucial for accelerating the development of multifunctional nanoprobes capable of simultaneous diagnosis and therapy, ultimately advancing personalized medicine. By highlighting these hurdles and potential solutions, this review aims to provide a comprehensive roadmap for researchers striving to optimize molecular imaging nanoprobes, thereby bridging the gap between laboratory innovation and clinical reality.Science Citation Index Expande
Impact of High-Concentration Office-Type Bleaching Agent on Physical Properties of Different Types of Bulk-Fill Composites
No full textBackground: This study investigated the effect of a 45% carbamide peroxide-containing office-type bleaching agent on the microhardness (MH) and surface roughness (SR) of flowable and paste-type bulk-fill composite resins. Methods: This study used two bulk-fill composite resins, 3 M Filtek Bulk-Fill (paste) and Estelite Bulk-Fill Flow (flowable). Twenty disc-shaped specimens were prepared and divided into two groups according to the type of bulk-fill materials. All samples were stored at room temperature for 24 h with artificial saliva. Initial MH and surface SR values were measured. High-concentration office-type (HCOT) bleaching agent was applied to the samples for 30 min, and then the same procedure was repeated after one week. Following completion of bleaching procedures, final MH and surface SR values were evaluated. The MH values were analyzed by ANOVA and Kruskal-Wallis tests was used for SR values with a significance of 0.05. Results: A statistically significant difference was found between the MH values of the groups before and after bleaching (p = .002). SR value of 3 M Filtek Bulk-Fill was found statistically higher than Estelite Bulk-Fill Flow after or before bleaching treatment. Statistically significant difference was found SR value of 3 M Filtek Bulk-Fill when compared to before and after bleaching procedures (p = .024). Conclusions:Bleaching with high-concentration office-type material significantly reduced the MH of both bulk-fill composites. While HCOT was applied, Estelite Bulk-Fill Flow did not cause a significant change in surface SR. In contrast, the SR value of 3 M Filtek Bulk-Fill was statistically higher. Therefore, if bleaching with a high-concentration office-type bleaching material is planned, it is recommended not to use 3 M Filtek Bulk-Fill as a restorative material, or it may be recommended to renew existing composite resin restorations after bleaching treatment.Science Citation Index Expande
A Cooperative Positioning Method for Connected and Automated Vehicles
No full textOtonom araçların güvenli bir şekilde şehir ortamlarında seyir yapabilmeleri için kesin ve dayanıklı bir konumlandırma sistemi esastır. Mevcut yöntemler genel navigasyon uydu sistemlerine (GNSS) dayandığı zaman açık alanlarda etkili olsa da, çok katlı köprülerin alt katları, yüksek binalarla çevrili yollar ve metro gibi şehir kanyonlarında hassas konum belirleme zorlukları devam etmektedir. Bu çalışma, GNSS'den yoksun senaryolarda C-V2X kablosuz iletişimin otonom araç konumlandırmasını nasıl geliştirebileceğini araştırmaktadır. Özellikle, sadece C-V2X kanal durumu verilerini kullanarak şerit düzeyinde hassasiyet elde etmek için RSU destekli işbirlikçi bir konumlandırma alt yapısı olan CV2X-LOCA'yı öneriyoruz. CV2X LOCA, bilgi işleme modülü, çevre parametre düzeltme modülü, kaba konumlandırma modülü ve araç izdüşümü filtreleme modülünden oluşan dört ana bileşeni içermekte olup, dinamik C-V2X ağlarındaki zorluklara kolektif olarak yanıt vermektedir. Genel modelleme, CV2X-LOCA'nın gürültülü koşullarda, hızlı hareket eden araçlar ve seyrek RSU kapsamında dahi son teknoloji konumlandırma performansı elde ettiğini göstermektedir. Bulgular, ulaşım kurumlarının gelecekte maliyet etkin RSU dağıtımına ilişkin bilinçli kararlar almasına değerli içgörüler sunmaktadır.This study investigates the ability of cellular-vehicle-to-anything (C-V2X) wireless communications to enhance AV localization in GNSS-deprived scenarios. Specifically, we propose CV2X-LOCA, a novel Road-Side-Unit (RSU)-assisted cooperative localization framework that leverages C-V2X channel state data to achieve lane-level accuracy. CV2X-LOCA includes four main components: a module of Information processing, an environmental parameter correction module, and a coarse positioning module and the vehicle trajectory filtering module collectively address challenges in dynamic C-V2X networks. The vehicle localization model in general demonstrates that CV2X-LOCA attains cutting-edge localization performance even in noisy conditions, with fast-moving vehicles and sparse RSU coverage. The findings provide transportation agencies with valuable insights to help them make informed decisions regarding the future cost-effective deployment of RSUs
Recent Innovations and Developments in MOF-Based Aptasensors
No full textMetal-organic framework (MOF)-based aptasensors represent a cutting-edge technology with remarkable potential for biosensing applications. These sensors combine the distinctive characteristics of MOFs with high specificity of aptamers, enabling precise and sensitive detection of target analytes in various fields. In this context, there are different points that should be concerned including achieving efficient immobilization of aptamers on MOF surfaces while maintaining their bioactivity, enhancing MOF stability under physiological conditions, and optimizing sensor regeneration and reusability. Moreover, the synthesis, scalability, functionalization, biocompatibility, and cost considerations pose significant hurdles that require interdisciplinary collaboration and innovative solutions. These types of sensors could be used for the development of portable and miniaturized sensor platforms for point-of-care diagnostics, and design of smart and responsive sensing systems for personalized medicine, precision agriculture, and wearable health monitoring. By exploring the unique properties and functionalities of MOFs and aptamers, this review highlights the potential of MOF-based aptasensors in enabling precise and selective recognition of target analytes for various applications such as environmental monitoring, food safety, biomedical diagnostics, etc. Additionally, by outlining future perspectives such as nanomaterial integration, miniaturization, and personalized sensing solutions, we aim to inspire further research and advancements in the field.Science Citation Index Expande
Radiographic Acetabulotrochanteric Distance Measurement as a Novel Method for Determining Leg Length Discrepancy in Patients with Hemiarthroplasty
No full textObjectives: This study aims to evaluate the interobserver reliability and interobserver reproducibility of radiographic acetabulotrochanteric distance (ATD) measurement and to investigate its accuracy by comparing it with conventional radiographic methods used in leg length discrepancy (LLD) measurement. Patients and methods: Between January 2017 and January 2022, a total of 97 patients (39 males, 58 females; mean age: 77.8±7.1 years; range, 61 to 91 years) who underwent pelvic radiographic evaluation and hemiarthroplasty (HA) due to femoral neck fracture were retrospectively analyzed. For ATD measurement, the distance between the line connecting the upper cartilage of the acetabulum (AC) and the extreme point of the greater trochanter (GT) was used. The AC-GT measurement on both sides was compared with bottom of the ischial tuberosities-lesser trochanter (BI-LT), center of the femoral head-BI (CH-BI), inferior acetabular teardrops-LT (IT-LT) measurements. The agreement between the methods was examined with the intraclass correlation coefficient (CCI). Results: According to the AC-GT & BI-LT, AC-GT & BI-CH methods, there were very strong (ICC: 0.75), moderate (ICC: 0.69) and acceptable (ICC: 0.33) agreements, respectively. Significant agreement was found between all measurements (p0.8). Conclusion: The ATD measurement correlates well with known measurement techniques on pelvic radiography and can be used as an alternative to this method. It has excellent intra- and interobserver agreements. This method can predict LLD after HA, but does not consider other length differences in the lower limbs.Science Citation Index Expande
The Relationship Between Personality Beliefs, Social Emotional Loneliness and Social Media Use Purposes
No full textBu araştırmanın amacı kişilik inançları, sosyal ve duygusal yalnızlık ile sosyal medya kullanım amaçları arasındaki ilişkileri incelemektir. Çalışma, Türkiye'de yaşayan 18 yaş üzeri 403 katılımcı ile yürütülmüştür. Veri toplama aracı olarak Kişilik İnançları Ölçeği, Sosyal ve Duygusal Yalnızlık Ölçeği ile Sosyal Medya Kullanım Amaçları Ölçeği kullanılmıştır. Araştırmada kullanılan veriler SPSS 27.0 (IBM Corp., 2020) kullanılarak analiz edilmiştir. Bulgular bazı kişilik inançları ile belirli sosyal medya kullanım amaçları arasında anlamlı ilişkiler olduğunu göstermiştir. Çekingen, bağımlı, paranoid, antisosyal kişilik inançları, insanları daha iyi tanıma amaçlı kullanımla; narsistik kişilik inançları, kişisel sunum ve bilgi paylaşımı amaçlı kullanımla; şizoid kişilik inançları bilgiye erişmek amaçlı kullanımla ilişkili bulunmuştur. Pasif-agresif ve obsesif kompulsif kişilik inançlarının eğlence ve rahatlama amaçlı kullanımla anlamlı düzeyde ilişkili olduğu belirlenmiştir. Sosyal ve duygusal yalnızlık boyutları açısından romantik ve sosyal yalnızlığın bazı sosyal medya kullanım amaçlarıyla ilişkili olduğu ancak ailevi yalnızlık ile anlamlı bir ilişki saptanmadığı görülmüştür. Bu sonuçlar, kişilik inançları ve yalnızlık türlerinin sosyal medya kullanım amaçlarıyla ilişkili olabileceğini göstermektedir.The aim of this study is to examine the relationships between personality beliefs, social and emotional loneliness and social media usage purposes. The research was conducted with 403 participants aged 18 and over living in Turkey. The Personality Beliefs Questionnaire, Social and Emotional Loneliness Scale, and Social Media Usage Purposes Scale were used as data collection tools. The research data were analyzed using SPSS 27.0 (IBM Corp., 2020). The findings revealed significant relationships between certain personality beliefs and specific social media usage purposes. Avoidant, dependent, paranoid, and antisocial personality beliefs were associated with usage aimed at getting to know people better; narcissistic personality beliefs were linked to usage for self-presentation and information sharing; and schizoid personality beliefs were related to usage for accessing information. Passive-aggressive and obsessive-compulsive personality beliefs were found to be significantly associated with usage for entertainment and relaxation. In terms of social and emotional loneliness dimensions, romantic and social loneliness were related to some social media usage purposes, whereas no significant relationship was found with familial loneliness. These results suggest that personality beliefs and types of loneliness may be associated with social media usage purposes
The Impact of the Physical Environment of a Campus Design Referring to Social Sustainability in University Campuses: Istanbul Okan University Case
No full textBu araştırma, üniversite kampüslerinde fiziksel mekân tasarımının öğrencilerin sosyal ve kültürel sürdürülebilirliğine olan etkisini incelemektedir. Çalışmanın ana odağı, İstanbul Okan Üniversitesi Tuzla Kampüsü'dür. Araştırma, kampüsün yapılı çevresinin öğrenciler arası sosyal etkileşimleri, kültürel alışverişi ve genel yaşam kalitesini nasıl etkilediğini değerlendirmektedir. Nitel araştırma yöntemleri, kullanıcı anketleri ve mimari analizlerin bir araya getirilmesiyle, sosyal ve kültürel sürdürülebilirliğin artırılmasına yönelik somut öneriler geliştirilmiştir. Çalışma kapsamında, kampüs planlamasında yer alması gereken başlıca fiziksel ve sosyal/kültürel tasarım kriterleri belirlenmiştir. Fiziksel kriterler arasında erişilebilirlik, işlevsellik, doğayla entegrasyon, güvenlik, esneklik ve teknolojik altyapı gibi unsurlar yer alırken; sosyal/kültürel kriterler olarak etkileşim alanlarının yeterliliği, kültürel temsil, aidiyet duygusu, çok kültürlülük ve sosyal güvenlik ön plana çıkmaktadır. Bulgular, mimari tasarımın sadece estetik değil, aynı zamanda öğrencilerin sosyal yaşamları ve kültürel etkileşimleri üzerinde derin etkileri olduğunu ortaya koymaktadır. Bu çalışma, eğitim kampüslerinin sürdürülebilirliğini artırmak amacıyla kapsayıcı, erişilebilir ve kültürel açıdan zengin fiziksel ortamların önemini vurgulamaktadır. Mimarlık, topluluk ve kalıcı etki arasındaki etkileşimi bütüncül bir şekilde ele alarak, daha yaşanabilir ve öğrencileri güçlendiren kampüs ortamlarının oluşturulmasına katkı sağlamayı amaçlamaktadır. Anahtar Kelimeler: üniversite kampüsleri, sosyal sürdürülebilirlik, kültürel sürdürülebilirlik, yaşam kalitesi, kampüs tasarımıUniversity campus built environments directly affect students' social connections while influencing their cultural participation and overall well-being. This research investigates how spatial design affects social sustainability in University campuses through an examination of Istanbul Okan University's Tuzla Campus as the case study. It combines architectural analysis with student surveys to evaluate essential physical criteria (accessibility, safety, comfort, spatial organization, environmental quality, and aesthetics) and social/cultural criteria (inclusivity, sense of belonging, diversity representation, cultural symbolism, and opportunities for interaction) that determine campus experiences. The research shows that intentional spatial arrangements create stronger place attachment among students while fostering inclusive environments that support diverse cultural activities. The research shows that campuses built with these criteria develop stronger community bonds while improving quality of life and sustaining long-term development. The research also provides new insights about how built environments can be used to develop educational spaces that promote social and cultural enrichment and provides recommendations that will help future campus planning and design create spaces that support academic achievement and complete student development. Keywords: university campus design, built environment, social sustainability, cultural sustainability, quality of life, architectural criteria, Istanbul Okan Universit
Double Congenital Abnormalities of Left Anterior Descending Artery: a Technical Modification for Closing Wide Neck of Aneurysm and Fistulae-A Case Report
No full textBackground The duplication of the left anterior descending coronary artery and coronary artery-to-pulmonary artery fistulae are infrequent congenital anomalies described in literature. These anomalies can lead to life-threatening conditions such as myocardial infarction, rupture, cardiac tamponade, and heart failure.Case summary A 73-year-old male with chronic kidney failure was admitted for a preoperative cardiovascular assessment. Initially, he did not report any chest pain. However, while awaiting myocardial perfusion scintigraphy, he developed chest pain and coughing, leading him to present to the emergency department, where his troponin levels were found to be elevated. Coronary angiography and coronary computed tomography angiography showed a dual left coronary artery where one of the left anterior descending arteries completely transforms into a congenital aneurysm and fistula. In order to reshape the aneurysm neck and prevent the migration of coils into the left main coronary artery by creating a landing zone and to reduce the number of coils and the procedure time, two stents were first placed inside the aneurysm neck. Then, the fistula and aneurysm were successfully closed by coil implantation.Discussion Some case studies and centre experiences recommend interventional closure using cover stents, vascular plugs, and coil embolization techniques for symptomatic fistulae and those resulting in complications. Despite these recommendations, determining the best treatment strategy remains challenging due to the lack of clear guidelines. The novel modified technic consisted of two nested stents and coil embolization to close the aneurysm and fistula and prevent secondary complications due to myocardial infarction.Emerging Sources Citation Inde