16372 research outputs found
Sort by
Finite Element Analysis of Occupant Risk in Vehicular Impacts into Cluster Mailboxes
No full textThe deployment of cluster mailboxes (CMs) in the U.S. has raised safety concerns for passengers in potential vehicular crashes involving CMs. This study investigated the crashworthiness of two types of CMs through nonlinear finite element simulations. Two configurations of CM arrangements were considered: a single- and a dual-unit setup. These CM designs were tested on flat-road conditions with and without a curb. A 2010 Toyota Yaris and a 2006 Ford F250, both in compliance with the Manual for Assessing Safety Hardware (MASH), were employed in the analysis. The simulations incorporated airbag models, seatbelt restraint systems, and a Hybrid III 50th percentile adult male dummy. The investigations focused on evaluating the safety of vehicle occupants in 32 impact scenarios and under MASH Test Level 1 conditions (with an impact speed of 50 km/h). The simulation results provided insights into occupant risk and determined the primary failure mode of the CMs. No components of the mailboxes were found intruding into the vehicle's occupant compartment. For all considered cases, the safety factors remained within allowable limits, indicating only a marginal risk of potential injury to occupants posed by the considered CMs.North Carolina Department of Transportation (NCDOT); [NCDOT RP 2018-24]The authors acknowledge the support of the North Carolina Department of Transportation (NCDOT) under Project No. NCDOT RP 2018-24, Risk Assessment of Roadside Utility Structures under Vehicular Impacts
Does the 5-Item Modified Frailty Index Predict Adverse Outcomes after Retrograde Intrarenal Surgery? A Case-Control Study by the RIRSearch Group
No full textObjectives: We aim to assess whether severely frail patients have an increased risk of complications and worse surgical outcomes after retrograde intrarenal surgery. Methods: The data of 340 consecutive patients undergoing retrograde intrarenal surgery to treat upper tract urinary stones were analyzed retrospectively. The 5-item modified frailty index (mFI-5) was used to assess the frailty status. Using a cutoff value of score 2 in the mFI-5 score, patients were divided into two groups: patients with an mFI-5 score = 2 were assigned to a frail (Group 2) group. The patients' demographics, stone characteristics, operative outcomes, and complication rates were compared between the groups. The primary objective was to examine whether the surgical outcomes were much better in non-frail patients. Results: After matching confounding factors, Group 1 comprised 255 patients, and Group 2 comprised 85 patients. The baseline characteristics were similar between the groups. There were no statistically significant differences in terms of the median operation time and length of hospital stay among groups. There were no significant differences between groups for intraoperative complication rates (7.6% and 9.4%, respectively; P = .47) and postoperative complication rates (13.8% and 11.8%, respectively; P = .71), and stone-free rates (70.9% versus 72.9%, respectively; P = .73). Conclusions: Retrograde intrarenal surgery is an efficient and feasible treatment option for upper urinary tract stones in severely frail patients
Heritage Transmission From Past to Future: A Practice-Based Exploration of Value Education Through Oral History
No full textStudies connecting oral history and value education as a method of learning and teaching are a few, and most are based on theoretical knowledge. There are limited studies that practically apply value education, using oral history as an example for researchers and readers. We designed this research to fill the gap between theory and practice. The current study aims to integrate oral history practices into value education and provide a practice-based example. Our problem statement: Can the oral history method contribute to students' learning of the values? To answer this question, we conducted collaborative action research with 20 students studying in a public secondary school over nine weeks to teach them the values of attaching importance to family unity, solidarity, respect, and responsibility, which we determined to be within the scope of the social studies course. At all stages, we collaborated with the social studies teacher, students, and family members of the students. We used various data collection tools, including knowledge assessment forms (pre and post), implementation assessment forms, and semi-structured interview forms with the students. After the data collection, we used the content analysis method. The study results showed that implementing value education through oral history effectively taught the objectives' values. In addition, thanks to the practice, students could perceive the change and continuity of values and develop their skills. Based on the research results, we can say that oral history should be used more as an innovative method in value education
The concept of globalization and the feminine cities defined by water: Istanbul and Paris
Get PDFBu tez, Paris ve İstanbul'un kültürel ve sembolik yapılar üzerinden inşa edilen küresel kimliklerini incelemektedir. Çalışma, Paris'teki Seine Nehri ve Notre-Dame Katedrali ile İstanbul'daki Boğaziçi ve Ayasofya gibi fiziksel ve tarihî yapılarında yer alan dişil metaforlar üzerine odaklanmaktadır. Bu semboller incelenerek, şehirlerin uluslararası kimliklerini nasıl şekillendirdiği ve kültürel güçlerini tarihî anlatılar ve kentsel dokular aracılığıyla nasıl yansıttıkları araştırılmaktadır. Bu çalışma, inşacılık teorisi ve yumuşak güç kavramlarından yola çıkarak, şehirlerin coğrafi mekânlar ve aynı zamanda küresel arenada aktif aktörler olduğunu savunmaktadır. Araştırma, Seine ve Boğaziçi gibi doğal ve mimari sembollerin şehirlerin besleyici, koruyucu ve birleştirici özelliklerini nasıl yansıttığını ve bu sayede şehirlerin dişil kimliklerini nasıl pekiştirdiğini ortaya koymaktadır. Paris ve İstanbul'un karşılaştırmalı analizi, bu şehirlerin farklı tarihî süreçlerden geçmesine rağmen kültürel simgelerini kullanarak kimliklerini güçlendirme ve uluslararası ilişkilerde sürekliliklerini sağlama biçimlerini ele almaktadır. 2020'de Ayasofya'nın camiye dönüştürülmesi ve Notre-Dame Katedrali'nin restorasyonu, yalnızca ulusal politikaları değil, aynı zamanda kültürel miras, egemenlik ve kimlik politikaları çerçevesinde küresel anlatıları da yansıtmaktadır. Bu tez, şehirlerin küresel kimlik inşasında oynadığı rolü ve mimari sembollerin kültürel diplomasi ve uluslararası temsil araçlarına nasıl dönüştüğünü daha derin bir şekilde anlamayı amaçlamaktadır. Elde edilen bulgular, kentsel küreselleşme, kimlik politikaları ve şehirlerin uluslararası algıları şekillendirme sürecindeki sembolik rolü üzerine geniş bir tartışmaya katkı sunmaktadır.This thesis explores the construction of global identities of Paris and Istanbul through their cultural and symbolic landmarks. The study focuses on the feminine metaphors embedded in the physical and historical structures of these cities, such as the Seine River and Notre-Dame Cathedral in Paris, and the Bosphorus Strait and Hagia Sophia in Istanbul. By examining these symbols, the research investigates how cities shape their international identities and project cultural power through historical narratives and urban landscapes. Drawing from constructivist theory and the concept of soft power, this study argues that cities are not merely geographical spaces but active agents in the global arena through their architectural and cultural heritage. The research highlights how natural and architectural symbols like the Seine and the Bosphorus contribute to the perception of cities as nurturing, protective, and unifying forces, reinforcing their feminine identities. The comparative analysis between Paris and Istanbul delves into how these cities, despite their different historical trajectories, employ cultural landmarks to assert their identities and maintain relevance in international relations. The transformation of Hagia Sophia into a mosque in 2020 and the restoration of Notre-Dame Cathedral reflect not only national policies but also global narratives of cultural heritage, sovereignty, and identity politics. This thesis aims to provide a nuanced understanding of the role cities play in constructing global identities and how architectural symbols become tools of cultural diplomacy and international representation. The findings contribute to the broader discourse on urban globalization, identity politics, and the symbolic role of cities in shaping international perceptions and fostering cross-cultural dialogue
THE SHADOWS OF REBIRTH PROCESS: THE MEMORIES OF BULGARIAN MIGRANTS IN 1989 AND NAIM SÜLEYMANOĞLU
Get PDFBulgaristan’ın 1909 yılında bağımsız olmasından itibaren ülkede bulunan azınlıklara verdiği bazı haklar mevcuttur. Bu azınlıkların çoğunluğunu Türkler oluşturmaktadır. Diğer azınlıklarda kendilerini din bağlarından ötürü Türk diye nitelendirip Türkçe konuşmaktadırlar. Fakat antlaşmalarla azınlık hakları belirtilse de Bulgaristan’da başa geçen hükümetler zaman zaman verilen hakları ihlal etmişlerdir. Özellikle 1944 yılından sonra komünist rejimle birlikte bu hak ihlalleri arttırılmış ve Todor Jivkov’un BKP’nin başına geçmesi ile doruk noktasına ulaşmıştır. 1984-1989 yılları arasında ortaya atılan ‘Soya Dönüş’ politikası gereğince Bulgaristan’da Türkçe konuşmak, eğitim görmek, dini ritüeller, düğün, sünnet gibi özellikle Türk azınlığın yaşam ve kültürel hakları kısıtlanmış ve Bulgarlaştırılmaya çalışılmıştır. Bu bağlamda Bulgaristan Türklerinden olan Naim Süleymanoğlu ve ailesinin de hakları kısıtlanmıştır. Giderek artan baskılardan dolayı Türkler ayaklanmış ve direniş göstermişlerdir. Bu direnişin simge ismi Naim Süleymanoğlu olmuştur. Süleymanoğlu, sistematik baskılar sonucunda 1986’da Türkiye’ye iltica etmiştir. Bu iltica, Bulgaristan Türklerinin Türkiye’ye göçlerinin kapısının açılmasında önemli bir etki yaratmıştır. Süreçte yaşananlar ve Naim Süleymanoğlu’nun Bulgaristan Türkleri anıları incelenmemiştir. Mevcut eksiklikten yola çıkarak bu araştırmada Naim Süleymanoğlu’nun Bulgaristan Türklerinin anılarında nasıl bir yer edindiğini tarihi bir perspektifte sunmak amaçlanmıştır. Bu amaçla Naim Süleymanoğlu’nun Bulgaristan’daki yaşamı, spor yaşamı, iltica etme süreci ve Türkiye’deki yaşamına ilişkin bilgi ve anılara sahip 1989 yılında Türkiye’ye göç etmiş kaynak kişilerle sözlü tarih görüşmeleri yürütülmüştür. Araştırma sonucunda Bulgaristan Türklerinin Naim Süleymanoğlu’na "Cep Herkülü", "Kapıkulenin Anahtarı" ve "Büyük Küçük Dev Adam" gibi unvanlarla andıkları görülmüştür. Kaynak kişilere göre; Süleymanoğlu’nun Türkiye adına uluslararası müsabakalarda kazandığı madalyalar ve kırdığı dünya rekorları, Türk halkı için büyük bir moral kaynağı olurken, Bulgaristan Türkleri için de milli kimliğin güçlenmesine katkı sağlamıştır. Türkiye’de halter sporunun gelişimine öncülük eden Süleymanoğlu, sporcu kişiliğiyle genç kuşaklara halteri sevdirmiş ve örnek olmuştur. Sonuç olarak asimilasyon politikalarına karşı verilen mücadelenin bir simgesi olan Naim Süleymanoğlu’nun mirası Bulgaristan Türklerinin gönlünde yaşamaya devam edeceği anlaşılmaktadır.Since Bulgaria gained independence in 1909, certain rights have been granted to minorities in the country, the majority of whom are Turks. Other minority groups, identifying themselves as Turks due to religious ties, also speak Turkish. Although minority rights have been outlined in agreements, successive Bulgarian governments have sometimes violated these rights. These violations intensified after 1944 under the communist regime and reached a peak when Todor Zhivkov took the leadership of the Bulgarian Communist Party (BCP). From 1984 to 1989, under the so-called "Revival Process" policy, Turkish-speaking, education, religious practices, weddings, circumcision, and other aspects of Turkish minorities’ cultural and social lives were restricted as part of a forced Bulgarization campaign. In this context, Naim Süleymanoğlu, a prominent member of the Bulgarian Turks, and his family also faced restrictions. Due to increasing oppression, the Turkish minority began to resist, with Naim Süleymanoğlu emerging as a symbolic figure of this resistance. Süleymanoğlu sought asylum in Turkey in 1986 due to systematic oppression, an event that significantly influenced subsequent migrations of Bulgarian Turks to Turkey. The events of this period and Naim Süleymanoğlu’s legacy among the Bulgarian Turks remain largely unexamined. Based on this gap, this study aims to present how Naim Süleymanoğlu is remembered in the memories of Bulgarian Turks from a historical perspective. Oral history interviews were conducted with individuals who migrated to Turkey in 1989 and possess knowledge and memories of Süleymanoğlu’s life in Bulgaria, his sports career, asylum process, and life in Turkey. The study found that Bulgarian Turks honor Süleymanoğlu with titles such as “Pocket Hercules,” “Key to Kapıkule,” and “The Big Little Giant.” According to interviewees, the medals Süleymanoğlu won, and the world records he set in international competitions on behalf of Turkey served as a source of morale for the Turkish people and contributed to strengthening the national identity among Bulgarian Turks. As a pioneer in developing weightlifting in Turkey, Süleymanoğlu inspired younger generations to take the sport. In conclusion, Naim Süleymanoğlu’s legacy as a symbol of resistance against assimilation policies is expected to continue living on in the hearts of the Bulgarian Turks
Could the Systemic Inflammatory Response Index be a Marker for the Non-Dipper Pattern in Newly Diagnosed Hypertensive Patients?
Get PDFSystemic inflammatory response index (SIRI), is associated with prognosis in coronary artery disease (CAD), heart failure (HF), and acute myocardial infarction. This study investigated the relationship between SIRI and non-dipper hypertension. The study retrospectively included a total of 254 naive, newly diagnosed hypertensive individuals based on ambulatory blood pressure monitoring (ABPM), containing 166 dippers (DHT) and 88 non-dippers (NDHT). The SIRI value of all patients was calculated based on neutrophil, monocyte, and lymphocyte counts. The average age of study population was 50.7 +/- 9.4 years old, and the male ratio was 68.5%. Compared with DHT, patients in the NDHT group had higher SIRI, monocyte to HDL-C ratio (MHR), neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), C-reactive protein (CRP), and neutrophil count, while high-density lipoprotein cholesterol (HDL-C) and lymphocyte count were lower (p < 0.05). The left ventricular mass index (LVMI) was higher in the NDHT group (p < 0.05). Multivariate logistic regression analysis showed that SIRI, LVMI, and HDL-C were independent predictor factors for NDHT. ROC curve analysis determined the optimal SIRI cut-off value for predicting NDHT diagnosis to be 2.41 (sensitivity 69.3%, specificity 64.5%, area under the receiver operating characteristic curve, 0.743; p < 0.001). The AUC values obtained for SIRI, MHR, NLR, PLR, HDL-C, and LVMI parameters in the ROC curve analysis were compared pairwise. The results demonstrated that SIRI's discriminative capacity in predicting NDHT was superior to all other indices. SIRI is an independent and significant predictor factor for NDHT and is superior in predicting NDHT diagnosis compared with HDL-C, MHR, LVMI, NLR, and PLR.Scientific and Technological Research Council of Turkiye (TUBIdot;TAK)Open access funding provided by the Scientific and Technological Research Council of Turkiye (TUB & Idot;TAK)
Which current chatbot is more competent in urological theoretical knowledge? A comparative analysis by the European board of urology in-service assessment
Get PDFIntroductionThe European Board of Urology (EBU) In-Service Assessment (ISA) test evaluates urologists' knowledge and interpretation. Artificial Intelligence (AI) chatbots are being used widely by physicians for theoretical information. This research compares five existing chatbots' test performances and questions' knowledge and interpretation.Materials and methodsGPT-4o, Copilot Pro, Gemini Advanced, Claude 3.5, and Sonar Huge chatbots solved 596 questions in 6 exams between 2017 and 2022. The questions were divided into two categories: questions that measure knowledge and require data interpretation. The chatbots' exam performances were compared.ResultsOverall, all chatbots except Claude 3.5 passed the examinations with a percentage of 60% overall score. Copilot Pro scored best, and Claude 3.5's score difference was significant (71.6% vs. 56.2%, p = 0.001). When a total of 444 knowledge and 152 analysis questions were compared, Copilot Pro offered the greatest percentage of information, whereas Claude 3.5 provided the least (72.1% vs. 57.4%, p = 0.001). This was also true for analytical skills (70.4% vs. 52.6%, p = 0.019).ConclusionsFour out of five chatbots passed the exams, achieving scores exceeding 60%, while only one did not pass the EBU examination. Copilot Pro performed best in EBU ISA examinations, whereas Claude 3.5 performed worst. Chatbots scored worse on analysis than knowledge questions. Thus, although existing chatbots are successful in terms of theoretical knowledge, their competence in analyzing the questions is questionable.Tekirdag Namimath;k Kemal University; Executive Committee of the European Board of UrologyWe thank to the Executive Committee of the European Board of Urology (EBU) for allowing us to utilize the in-service assessment questions from 2017 to 2022 for our research
From mansions to streets: Interviews, stories and novels by Suat Derviş
No full textBu çalışma, ilk gençlik yıllarından ölümüne kadar, yaşamının yarım asıra yakın bölümünde hem edebiyatçı hem de gazeteci kimliğiyle varlık gösteren ancak dev külliyatına rağmen göz ardı edilen, yaşadığı dönemde hak ettiği değeri görmediği düşünülen Suat Derviş'i; edebiyat sosyolojisi perspektifiyle incelemeyi amaçlamıştır. 1930'ların sonuna değin şahsi konuları işleyen yazarın bu dönemden sonra topluma yönelmesindeki gerekçeleri anlamak adına hem yaşamının hem de gazeteci kimliğinin eserleri üzerindeki etkisi üzerinde durulmuştur. Bu amaç doğrultusunda giriş bölümünde edebiyat sosyolojisi alanına dair genel bir bilgilendirme yapılarak çalışma alanı netleştirilmiştir. Birinci bölümde Suat Derviş'in yaşamı, sanatı ve eserlerine değinilmiş; ikinci bölümde Türk romanının gelişim seyrine ve Toplumcu Gerçekçi yaklaşıma yer verilmiş, üçüncü bölümde ise Suat Derviş'in gazeteci kimliğiyle 1935-1937 yılları arasında Son Posta, Cumhuriyet ve Tan gazetelerinde yaptığı röportajları, bunlarla aynı dönemde kaleme aldığı ve çeşitli gazetelerde tefrika ettiği bazı hikayeleri ve toplumcu ögelerin baskın olduğu Bu Olan Şeylerin Romanıdır, İstanbul'un Bir Gecesi, Fosforlu Cevriye ve Ankara Mahpusu adlı romanları incelenmiştir.This study aims to analyze Suat Derviş, who existed as both a literary writer and a journalist for nearly half a century of her life, from her early youth until her death, but who was ignored despite her huge oeuvre and who was thought to have been underappreciated during her lifetime, from the perspective of sociology of literature. In order to understand the reasons why the author, who dealt with personal issues until the end of the 1930s, turned towards society after this period, the impact of both her life and her journalist identity on her works was tried to be understood. For this purpose, the introduction provides a general information about the field of sociology of literature and clarifies the field of study. In the first part, Suat Derviş's life, art and works are discussed; in the second part, the course of development of the Turkish novel and the Socialist Realist approach are discussed; and in the third part, Suat Derviş's interviews conducted in the newspapers Son Posta, Cumhuriyet and Tan between 1935 and 1937 as a journalist, some of her stories written in the same period and published in various newspapers, and her novels Bu Olan Şeylerin Romanıdır, İstanbul'un Bir Gecesi, Fosforlu Cevriye and Ankara Mahpusu, in which socialist elements are dominant, are analyzed
Fabrication and wear performance of M7C3 carbide reinforced epoxy composites
No full textThe role of materials in industrial engineering has become even more important today. Various methods are used to develop materials with desired properties. Cr7C3 carbide and grease oil reinforced epoxy-based matrix composites were produced. Microscopic analysis of the composites was carried out by SEM. The differences in the wear properties of the composites were investigated in dry sliding wear test. Increasing sliding speed and load increased the wear of the composites. Combining Cr7C3 with epoxy resulted in improved wear performance. The higher the chromium carbide level increased the coefficient of friction. The best wear resistance result was obtained from 75 wt.% chromium carbide reinforced composite. The change in wear resistance varied significantly depending on the epoxy resin ratio and the amount of reinforcement
Long-term outcomes of Türkiye's first population-based mammography screening program: a decade of breast cancer detection and survival analysis in Bahçeşehir
No full textBackgroundThe Bah & ccedil;e & scedil;ehir population-based mammography screening program (BMSP) is an example of T & uuml;rkiye's first population-based screening program. This study aims to reveal the successful implementation of population-based secreening program in one of the low- and middle-income countries, T & uuml;rkiye and long-term results of patients diagnosed with breast cancer during BMSP. MethodsThis study was conducted between 2009 and 2019, in the Bah & ccedil;e & scedil;ehir county of Istanbul. Women between the ages of 40 and 69 living in this region were invited every two years to undergo clinical breast examination (CBE) and mammography screening. All data was recorded in a dedicated software program. Women diagnosed with breast cancer were followed as a separate cohort. ResultsDuring the 10-year screening period, 8,825 women were screened and 146 (1.7%) breast cancers were detected. The median age at diagnosis for these patients was 52.9 years (40-69). The risk of breast cancer was 1.39 times higher (95% CI: 1.01-1.93) in women aged >= 50 compared to those less than 50 years (p = 0.045). The Cox regression analysis revealed that age at first birth, and number of births were significant predictors of breast cancer risk (p < 0.001, and p = 0.011). The breast cancer rate tends to increase as the breast density category progresses from A to D (p < 0.001). The median follow-up time for 146 breast cancer patients was 95.3 months. The 10-year breast cancer specific survival rate was 85%. ConclusionsThis study demonstrates that with a committed team and sufficient infrastructure, screening mammography can be effectively carried out in T & uuml;rkiye, leading to early detection and lower mortality rates. The recommended age to commence screening is 40 years old.Breast Health Society of Turkiye (MEMEDER); Roche TurkiyeBMSP was funded mainly by the Breast Health Society of Turkiye (MEMEDER) and partly by Roche Turkiye. The Breast Health Center was rented by Bahcese-hir Municipality. General Electric supported the periodic routine maintenance of the digital mammography device