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Influence of silane coating and graphene oxide integration on the magnetothermal Behaviors of La1-xSrxMnO3 nanoparticles
No full textIn this study, La1-xSrxMnO3 (x = 0.27, 0.3, 0.33) magnetic nanoparticles (MNPs) were synthesized and then these nanoparticles synthesized in the core–shell structure were coated with silane for potential magnetic hyperthermia applications. In order to provide support material for the coated magnetic nanoparticles, silane-coated hybrid magnetic nanoparticles were obtained by producing graphene oxide (GO) nanoflakes. The structural and magnetic properties and magnetothermal properties of these structures were investigated. It was observed that the structure of the silane-coated magnetic nanoparticles remained intact and did not show any degradation compared to the uncoated materials. In addition, the highest saturation magnetization (MS) value was observed in the sample doped with x = 0.30. This value indicated that the heating power would be higher than the other doped samples in the specific absorption ratio (SAR) measurements. In this context, the heating amount in the silane-coated samples showed a slight decrease compared to the uncoated samples. Despite the decrease in the SAR values of the integrated samples by incorporating GO into the coated MNPs, it is anticipated that effective results will be obtained for practical applications with the advantage of increasing the thermal conductivity of GO
The effect of peer video modeling and 3D jaw video modeling training on oral health and toothbrushing skills in children wıth autism
No full textBu çalışma, otizm spektrum bozukluğu (OSB) olan çocukların oral hijyen alışkanlıklarını geliştirmek ve akran video modelleme ve 3 boyutlu çene video modelleme yöntemlerinin etkilerini karşılaştırmak amacıyla yürütülmüştür. Araştırma, İstanbul Hamit İbrahimiye Özel Eğitim Uygulama Okulu'nda 6-12 yaş arası 120 çocukla, randomize kontrollü deneysel bir tasarımla gerçekleştirilmiştir. Çocuklar akran video modelleme, 3 boyutlu çene video modelleme ve kontrol grubu olarak üç gruba ayrılmıştır. Veri toplama araçları arasında sosyodemografik bilgi formu, ağızdiş sağlığı bilgi formu, plak indeksi, gingival indeks ve diş fırçalama değerlendirme formları yer almaktadır. Çalışma, başlangıçta, 1. ay, 3. ay ve 6. ayda yapılan ölçümlerle değerlendirilmiştir. Bu çalışmanın bulguları, akran video modelleme yönteminin diş plak indeksini anlamlı düzeyde azalttığını (p < 0,05) ve diş fırçalama becerilerinde kayda değer bir gelişim sağladığını ortaya koymuştur. 3 boyutlu çene video modelleme grubunda bu gelişim daha sınırlı kalmıştır. Uzun vadeli etkilerde, akran video modellemesinin çocukların ağız hijyen alışkanlıkları üzerinde kalıcı bir etki yarattığı belirlenmiştir (p<0,01). Bu bulgular, akran video modellemesinin özellikle OSB'li çocuklarda diş fırçalama alışkanlıklarını güçlendirmede daha etkili olduğunu ortaya koymaktadır. Sonuç olarak, akran video modellemesi OSB'li çocukların ağız ve diş sağlığı eğitiminde daha etkili bir yöntemdir. Gelecekteki araştırmalarda farklı yaş gruplarında ve uzun dönemli etkileri daha ayrıntılı incelenmelidir. Ayrıca, ebeveyn ve eğitimciler için rehber materyaller geliştirilmesi faydalı olabilir.This study was conducted to improve the oral hygiene habits of children with Autism Spectrum Disorder (ASD) and to compare the effects of peer video modeling and three-dimensional (3D) jaw model simulation methods. The research was carried out at Istanbul Hamit Ibrahimiye Special Education Practice School with a randomized controlled experimental design, involving 120 children aged 6–12 years. The participants were divided into three groups: peer video modeling, 3D jaw model simulation, and control. Data collection tools included a sociodemographic information form, oral and dental health knowledge form, plaque index, gingival index and tooth brushing evaluation forms. The study was evaluated based on assessments conducted at baseline, 1st month, 3rd month, and 6th month. The findings of the study revealed that the peer video modeling method significantly reduced the plaque index (p < 0.05) and led to a notable improvement in tooth brushing skills. The improvement observed in the 3D jaw model simulation group was more limited. In terms of long-term effects, peer video modeling was found to have a lasting impact on children’s oral hygiene habits (p < 0.01). These results indicate that peer video modeling is particularly more effective in promoting tooth brushing habits among children with ASD. In conclusion, peer video modeling appears to be a more effective method for oral and dental health education in children with ASD. Future studies should examine its long-term effects in more detail across different age groups. In addition, developing guideline materials for parents and educators may be beneficial
Syrian Turkmen music: 2011 post-civil war period
No full textBu çalışma, 2011 Suriye iç savaşı döneminde Türkmen topluluklarının sosyal yaşamlarında meydana gelen değişimleri, müzik üzerinden incelemeyi amaçlamaktadır. Performans Teori çerçevesinde müzik-mekân ilişkisi bağlamında ele alınan çalışmada, yaşanılan göç sonrasında oluşan mekân değişikliğinin, müzik üzerindeki etkilerine odaklanmaktadır. Çalışma, Giriş ve takip eden üç bölümden oluşmaktadır. Giriş bölümünde çalışmanın konusu, amacı, önemi, varsayımları, kullanılan yöntemler, sınırlılıklar ve soruları gibi başlıklar yer almaktadır. Birinci bölümünde, Türk ve Türkmen kavramları, Suriye’nin tarihi, coğrafi ve demografik özellikleri, Suriye Türkmenlerinin sosyal ve kültürel olarak geçirdikleri süreçler bilgiler yer almaktadır. İkinci bölümde, Suriye Türkmen müziği Türk Halk Müziği bağlamında ele alınarak, repertuvar oluşum süreçleri, Türkü kavramı ve kullanımı, tarihsel süreçte yaşanılan etkileşimler yer almaktadır. Üçüncü bölümde, Suriye Türkmen müziği 2011 sonrasında yaşanılan iç savaşının günümüze kadar uzanan etkileri sebebiyle bu döneme odaklanarak ele alınmaya çalışılmıştır. Yapılan saha çalışması sonunda iç savaş yüzünden Türkiye’ye göç etmiş aktif müzisyenler, ozanlar ve sivil toplum üyeleriyle yapılan görüşmeler ışığında elde edilen veriler aktarılmaya çalışılmıştır. Önceden hazırlanmış sorulara verilen cevaplar doğrultusunda ortaya atılan görüşler paylaşılmıştır. Müzik icralarından elde edilen söz ve müzik içeriği nota ve şiir şeklinde metinde yer almıştır. Kullanılan çalgılar, ulaşılabilen ve bilgi elde edilebilen müzisyenler ve ozanlar tanıtılmıştır. Karşılaşılan repertuar, konu, ritim ve dizi özellikleri bakımından analiz edilmeye çalışılmıştır. Sonuç ve öneriler bölümünde, çalışmada elde edilen sonuçlar ve gelecek çalışmalar açısından lüzumlu görülen öneriler yer almıştır. Kaynakça ve ekler kısmında, çalışmada yararlanılan her türlü kaynak, saha çalışmasında elde edilen ve metinde yer almayan veriler, yapılan görüşmelerde sorulan sorular, kaynak kişilerin listesi, etik kurul onayı ve saha çalışmasında çekilmiş bazı fotoğraflar yer almaktadır.This study aims to analyze the changes in the social lives of Turkmen communities during the 2011 Syrian civil war through music. The study, which is discussed in the context of the relationship between music and space within the framework of Performance Theory, focuses on the effects of the change of space that occurs after migration on music. The study consists of an introduction followed by three chapters. In the introduction section, the subject, purpose, importance, assumptions, methods used, limitations and questions of the study are included. The first chapter includes information on the concepts of Turk and Turkmen, the historical, geographical and demographic characteristics of Syria, and the social and cultural processes of Syrian Turkmens. In the second part, Syrian Turkmen music is discussed in the context of Turkish Folk Music, and the processes of repertoire formation, the concept and use of the Türkü, and the interactions experienced in the historical process are included. In the third chapter, the Syrian Turkmen music is analyzed by focusing on this period due to the effects of the civil war that took place after 2011 and extends to the present day. At the end of the fieldwork, the data obtained in the light of interviews with active musicians, minstrels and civil society members who migrated to Turkey due to the civil war were tried to be conveyed. The views put forward in line with the answers given to the pre-prepared questions were shared. The lyrics and musical content obtained from the musical performances were included in the text in the form of notes and poems. The instruments used, musicians and minstrels that can be reached and information can be obtained are introduced. The repertoire encountered was analyzed in terms of subject, rhythm and scale characteristics. The conclusions and recommendations section includes the results obtained in the study and the recommendations deemed necessary for future studies. In the bibliography and appendices section, there are all kinds of sources used in the study, data obtained in the field study and not included in the text, questions asked in the interviews, list of resource persons, ethics committee approval and some photographs taken in the field study
A threat to cultural sustainability: Urbicide
No full textThis article examines the intricate relationship between urban memory, the phenomenon of urban destruction (urbicide), and cultural sustainability. Cities, understood as living narratives shaped by collective memory, are profoundly affected by the erasure of urban spaces. This erasure affects community identity, urban identity, and cultural heritage. The implicit hypothesis of the article is that the selective destruction of urban layers (urbicide) disrupts urban memory, erodes cultural sustainability, and prioritizes singular historical narratives over the multilayered authenticity of cities, ultimately harming community identity and resilience. Due to this argument, the conceptual framework of the article is constructed by exploring key concepts: urban memory, cultural sustainability, and urbicide, drawing upon existing literature to establish a framework for analysis. The article then delves into the multifaceted causes of urban destruction. Specific cases of urban destruction in Turkey are analyzed to illustrate the complexities of these processes and their impact on cultural sustainability. The cases are from three cities: & Idot;stanbul and Bursa, which are included in UNESCO World Heritage List, and Ankara, the capital city. Finally, the article concludes by discussing the implications of these findings for urban planning and policy, emphasizing the critical need for holistic approaches that prioritize the preservation of urban memory and the fostering of cultural resilience
Multipurpose adsorption applications of boron-doped and amino-functionalized magnetic mesoporous silica nanocomposite
No full textIn this study, boron-doped magnetic mesoporous silica nanocomposite was prepared through the hydrothermal synthesis procedure followed by post modification with –NH2 groups. The higher surface area, more ordered mesoporous structure, and higher surface charge density obtained by boron doping and amino functionalization contributed to the use of nanocomposite for multipurpose application functions. When used as an adsorbent for light green (LG) anionic dye, boron-doped nanocomposite exhibited higher adsorption capacity (105.80 mg/g) compared to undoped nanocomposite (72.23 mg/g), while when used as a drug carrier for Doxorubicin (DOX), a sufficient drug loading capacity (48.0 mg/g) was obtained, which is also higher than that of undoped nanocomposite (30.3 mg/g). In terms of LG adsorption, the effects such as initial concentration, adsorbent dosage, time, pH, and temperature on the adsorption properties were investigated in detail. Adsorption kinetics, isotherms, thermodynamics, and reusability are discussed. The existence of small quantity of boron doping enhanced the surface charge density from 0.0393 to 0.2854 C/m2, which resulted in higher adsorption capacity for LG adsorption dominated by electrostatic attraction, and led to formation of silanol holes together with the –OH and –NH2 functional groups, which resulted in higher drug loading capacity for DOX adsorption dominated by hydrogen bonding. This promising result provides that boron-doped and –NH2 grafted magnetic mesoporous silica material can function as multipurpose adsorbent for various environmental applications
Hazrat Osman in 19th century Turkish divan works
No full textBu çalışma Hz. Osman’ın hayatı, kişiliği, edebî türler içerisindeki yeri ve 19. yüzyıl divanlarındaki tezahürleri konularından meydana gelmiştir. Çalışmamız üç bölümden oluşmaktadır: Birinci bölümde Hz. Osman’ın hayatı kısaca anlatılmıştır. Hz. Osman’ın edebî kişiliği hakkında bilgi verilmiştir. Türk Edebiyatı’ndaki türler içerisinde Hz. Osman konusu incelenmiş ve örnek metinler sunulmuştur. İkinci bölümde incelediğimiz 19. yüzyıl divanlarında Hz. Osman’a müstakil şiir yazanlar ve dört dost içerisinde Hz. Osman’ın geçtiği şiirler zikredilmiştir. Üçüncü bölümde Hz. Osman’ın 19.yüzyılda hangi divanlarda incelendiği tablo yapılmış, her bir özelliği bir başlık altında toplanıp açıklanmıştır.This study is composed of the life of Hazrat Osman, his place in literary genres, and his manifestation in 19th century divans. In the first section, the life of Hazrat Osman is briefly narrated. Information is provided about his literary aspect and poetry. The depiction of Hazrat Osman in Turkish literature's genres is examined, and sample texts are presented. In the second section, the poets who wrote independent poems about Hazrat Osman in the 19th century divans and the poems that mention Hazrat Osman among the four friends are brought together. In the third section, a table is created that shows in which divans Hazrat Osman was examined in the 19th century. Each characteristic is classified, gathered under a title, and explained
The prevalence, serogroup distribution and risk factors of meningococcal carriage in children, adolescents and young adults in Turkey meningo-carr-TR study PART 3 COVID-19 pandemic situation
No full textBackground: The prevalence of meningococcal carriage and serogroup distribution is crucial for assessing the epidemiology of invasive meningococcal disease, forecasting outbreaks and formulating potential immunization strategies. Following the meningococcal carriage studies conducted in Turkey in 2016 and 2018, we planned to re-evaluate meningococcal carriage in children, adolescents and young adults during the COVID-19 pandemic period. Methods: In the MENINGO-CARR-3 study, we collected nasopharyngeal samples from 1585 participants 0–24 years of age, across 9 different centers in Turkey. We used polymerase chain reaction and serogroup distribution to determine how common it is for people to carry Neisseria meningitidis. Results: The overall meningococcal carriage rate was 8.5% (n = 134). The serogroup distribution was as follows: serogroup A, 6%; serogroup B, 30.6%; serogroup W, 12.7%; serogroup Y, 3.7%; serogroup X, 1.5% and nongroupable as 45.5%. The highest carriage rate was found in 15–17-year-old adolescents (24.1%, 17.9%, and 20.2%, respectively). The carriage rate was higher among participants who had a previous COVID-19 infection (P = 0.05; odds ratio: 1.95; 95% confidence interval: 1.11–3.44). The nasopharyngeal carriage rate was also higher than in the 2016 and 2018 studies (8.45% vs. 6.3% and 7.5%, respectively), and the most prevalent groupable serogroup was B during this study period, followed by serogroup W in 2016 and serogroup X in 2018. Conclusions: The present study found that meningococcal carriage was higher during the post-COVID-19 pandemic period, especially in adolescents and young adults. Severe acute respiratory syndrome coronavirus-2 virus itself and/or pandemic mitigation strategies may affect both meningococcal carriage and serogroup distribution. Serogroup distribution varies between years, and further immunization strategies, including adolescent immunization, may play a role in controlling invasive meningococcal disease.Pfizer 6905031
Evaluation of selected biochemical parameters of a group of calves after colostrum intake
No full textObjective The aim of the presented study was to evaluate some selected biochemical values of a group of newborn Holstein calves after colostrum intake. Material and methods Fifteen newborn Holstein calves of both sexes fed with high quality (Brix >= 22%) colostrum were participated in our study. Blood samples were taken at birth (before colostrum intake) and after 24 th hours of feeding with colostrum. Serum samples were analyzed with Reflotron Plus biochemistry device. Analysis results were evaluated at SigmaPlot statistical program. Results It was observed that gamma-glutamyl transferase (GGT), globulin (GLOB), total protein (TP), aspartate aminotransferase (AST), and total cholesterol (TCHOL) concentrations increased, albumin (ALB) concentration and albumin/globulin ratio (ALB/GLOB) decreased and calcium (Ca), magnesium (Mg), phosphorus (P), blood urea nitrogen (BUN) concentrations did not change after colostrum consumption. Conclusion and clinical relevance Although TP, GLOB and GGT levels are commonly used to determine passive immunity status in calves, changes in ALB, AST and TCHOL levels and ALB/GLOB may also be used to determine passive immune transfer in calves
Relations between the reaya and the central administration according to complaints from the Anatolian Province in the second half of the 18th century (1768-1780)
No full textDeğer Dil Düzenle Bu tez 1768-1780 yılları arasında Osmanlı İmparatorluğu'nda, Anadolu Eyaleti'nden Divan-ı Hümayun'a iletilen şikâyetler üzerinden reaya ile merkezî yönetim arasındaki ilişkileri incelemektedir. 1768-1774 Osmanlı-Rus Savaşı sonrası, taşrada ayanın güç kazanma süreci, reaya üzerindeki etkileri ve şikâyet mekanizmasına yansımaları, tezin temel konuları arasındadır. Bu dönemde taşra idaresinde yaşanan değişimlerin, reaya ile merkezî yönetim arasındaki ilişkilere yansıması, halkın sesinin en iyi duyulabileceği şikâyet kayıtlarında aranmıştır. Bu bağlamda, tezin ana kaynağını Anadolu Ahkâm ve Atik Şikâyet Defterleri oluşturmaktadır. Dönemin en dikkat çekici unsurlarından biri, taşradan Divan-ı Hümayun’a yapılan başvuruların artışı ve başvuru yöntemlerindeki değişimlerdir. İncelenen dönemde, şikâyet sayısındaki artışın nedenleri ve şikâyet mekanizmasının devlet açısından taşıdığı önem üzerinde durulmuştur. Bunun yanı sıra, şikâyet konuları tasnif edilerek, Anadolu Eyaleti genelinde öne çıkan problemler tartışılmıştır. Ayrıca, şikâyet mekanizmasının insani boyutu ele alınarak şikâyetçi, şikâyet edilen ve problemleri çözen aktörler incelenmiştir. Böylece, toplumun hangi kesimlerinin hangi sorunlarla karşılaştığı ve devletin sorunların çözümünde kimleri muhatap aldığı açıklığa kavuşturulmaya çalışılmıştır. Son olarak, şikâyetlerin coğrafi boyutu incelenmiş, sancaklara göre şikâyetler değerlendirilerek mesafe, idari yapı ve coğrafyanın şikâyetlerin dağılımına etkisi analiz edilmiştir. Ayrıca, şikâyet konularının mevsimsel değişimi tasnif edilerek, problemlerin dönemsel akışı ortaya konmaya çalışılmıştır.This thesis examines the relations between the reaya and the central administration in the Ottoman Empire between 1768 and 1780, based on complaints submitted from the Anatolian Province to the Imperial Council (Divan-ı Hümayun). One of the main focuses of the study is the process of power consolidation by the ayan in the provinces following the Ottoman- Russian War of 1768-1774, its effects on the reaya, and its reflections on the complaint mechanism. The impact of transformations in provincial administration during this period on the relationship between the reaya and the central administration has been analyzed through complaint records, which provide the most direct insight into the voices of the people. In this context, the primary sources of this thesis are the Anatolian Ahkâm Registers and the Atik Complaint Registers. One of the most striking aspects of the period is the increase in petitions submitted from the provinces to the Imperial Council and the changes in petitioning methods. The study focuses on the reasons behind the rise in complaints and the significance of the complaint mechanism from the state's perspective. Additionally, the complaints are categorized to discuss the prominent problems across the Anatolian Province. Furthermore, the human dimension of the complaint mechanism is explored by analyzing the complainants, the accused, and the actors responsible for resolving disputes. This analysis aims to clarify which social groups encountered specific problems and whom the state engaged with in resolving these issues. Finally, the geographical distribution of complaints is examined by evaluating them according to sanjaks (districts), analyzing how distance, administrative structures, and geography influenced the spread of complaints. Additionally, the seasonal variations in the subjects of complaints are classified to identify the periodic patterns of the problems
Electrochemical detection of foodborne<i> escherichia</i><i> coli</i> using carbon nanotube-incorporated pencil-drawn paper-based disposable biosensors
No full textBackground: In this study, electrochemical flexible paper-based biosensors were developed for rapid and sensitive detection of Escherichia coli, a pathogen and a significant concern in both public health and the food industry. The electrodes were fabricated by a simple pencil drawing method utilizing a commercial, cost-effective cutting tool. Using automated cutting tool to form the conductive graphite patterns enabled the fabrication of pencil-drawn paper-based electrodes with a high reproducibility. The polyclonal E. coli antibody-hybridized multi-walled carbon nanotubes (MWCNTs) were immobilized onto the working electrode surface to construct the biosensors. Results: The performance of the biosensors against E. coli was evaluated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. To the immobilization and performance conditions optimization results, the developed sensor demonstrated the best results at 7.2 pH, 10 mu g mL- 1 Ab-MWCNT conjugate loadings and 30-min incubation time. The pencil-drawn flexible paper-based biosensors showed a linear range of 10 degrees-107 CFU mL- 1 with a low limit of detection (LOD) of 2.6 x 101 CFU mL-1. The sensor exhibited high repeatability with a low Relative Standard Deviation (RSD) % of 2.8. The sensors demonstrated remarkable selectivity against various culture environments and good performance in detecting E. coli in apple juices as real samples. In addition, the developed biosensor successfully detected a wild-type E. coli strain which was isolated from a street food and genetically confirmed as E. coli in this study. Significance: Our results suggested that disposable paper-based pencil-drawn flexible electrodes can be used to develop low-cost biosensors with high sensitivity and selectivity against E. coli. To the best of our knowledge, it is the first report using the pencil-drawing method for electrode fabrication for detection of E. coli and its appli-cation in real samples