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Statistical and seismotectonic analyses of the Marmara region under existing stress regime in the west of the NAFZ
Full text linkThe Marmara Region is an active tectonic region in northwestern Türkiye, which comprises some important strike-slip active fault mechanisms and important tectonic units, located near the western part of the North Anatolian Fault Zone. In the historical and instrumental period, the Marmara Region experienced large/devastating earthquakes. Considering this continuous activity, in this study, we investigate the tectonic structure and performed future seismic hazard estimation of the region based on some seismotectonic parameters. For this evaluation, we plot the Coulomb stress change maps of 1912 Mürefte-Şarköy, 1953 Yenice-Gönen and 1999 İzmit mainshocks with the earthquakes (MW ≥ 4.5) that occurred in the study region after 2003. For the estimation of b-value, occurrence probabilities and return periods of earthquakes, we used a homogenous local seismicity catalogue consisting of 119.029 events for the period between 1912 and 2023. In the findings of this study, the lower b-values and increasing Coulomb stress changes which are trigger stress failure compatible are observed in the west and northwest of the Marmara Sea. In contrast, the higher/moderate b-values and decreasing Coulomb stress values are observed in the east and southeast of the Marmara Sea. The results of probability assessments show that an earthquake with Mw = 6.5 may occur with a probability of 98% in the west of the Marmara Sea after 2025. As a remarkable fact, a comprehensive assessment of these types of variables will supply important findings for earthquake hazard and potential in the study region. © The Author(s) under exclusive licence to Institute of Geophysics, Polish Academy of Sciences 2024.Bogazici UniversityKandilli Observatory and Research InstituteGeneric Mapping Tools, (2019
Predicting the Altruism of Counsellor Candidates in Terms of Cultural Sensitivity, Social Desirability and Emotional İntelligence
No full textIntroductionAltruism, which is the subject of this research, generally means helping someone else without expecting anything in return. Counsellors assist other people as part of their jobs. This study examined the altruism of counsellor candidates in the context of cultural sensitivity, social desirability and emotional intelligence.MethodThe research included a total of 542 undergraduate students, 416 women and 126 men, studying in the Guidance and Psychological Counselling Department at foundation and state universities in Istanbul. The data for the study were collected with the Altruism Scale, Intercultural Sensitivity Scale, Good Impression Scale and Emotional Intelligence Trait Scale-Short Form. Multiple linear regression analysis, hierarchical regression analysis and structural equation modelling mediation analysis were used to analyse the data.ResultsThe research concluded that the variables of cultural sensitivity, social desirability and emotional intelligence predicted the altruism of counsellor candidates. It was understood that the variance in altruism was explained most by cultural sensitivity, followed by social desirability and least by emotional intelligence. Psychological and social factors, particularly cultural sensitivity and social desirability, were found to be more effective than demographic variables in explaining altruism. Additionally, the SEM analysis indicated that cultural sensitivity mediated the relationship between emotional intelligence and altruism, while social desirability had a strong direct effect on altruism.ConclusionIn line with the results of research, it is recommended to increase the number and amount of content of courses in which students will have more comprehensive knowledge about cultural infrastructure related to their awareness, empathy levels, realistic perspectives and interactions with different individuals. It is suggested that social responsibility projects, club activities and Erasmus opportunities that will support the aims mentioned, in addition to course achievements, are supported by both lecturers and the university administration
Nanocellulose hydrogels from agricultural wastes: methods, properties, and application prospects
Full text linkEscalating environmental concerns and the depletion of non-renewable resources have intensified interest in sustainable and eco-friendly materials. Cellulose-based hydrogels, renowned for their biocompatibility, biodegradability, and excellent mechanical properties, have emerged as promising candidates for diverse applications, including biomedicine, agriculture, and water purification. This review focuses on methods for extracting nanocellulose from agricultural wastes and their use in creating cellulose hydrogels. Special emphasis is placed on the mechanical, chemical, thermal, and environmental properties of nanocellulose, as well as its applications in packaging materials, medical devices, biocomposites, and filtration systems. The literature review examines cellulose extraction methods, hydrogel properties, and their industrial applications. The key advantages and disadvantages of these methods are identified, and directions for future research are proposed. This work provides a comprehensive overview of the current state of research on cellulose-based hydrogels and contributes to the development of more efficient and sustainable production methods for these materials.Ministry of Education and Science of the Republic of Kazakhstan [(AP19679937) 2023-2025]; Ministry of Education and Science of the Republic of KazakhstanThis work was funded by the Ministry of Education and Science of the Republic of Kazakhstan grant (AP19679937) 2023-2025
Modulation of the ubiquitin-proteasome system by curcumin: Therapeutic implications in cancer
No full textBy the ubiquitin-proteasomes, cellular proteins are structurally degraded and turnover. Many essential functions and regulations of cells are regulated and controlled by these proteins. Recent studies indicated that many cancer types have been associated with aberrations in the ubiquitination pathway, which involves three enzymatic steps. Dietary phytochemicals have been identified as having the potential to inhibit carcinogenesis recently. As part of this group of phytochemicals, curcumin can play a crucial role in suppressing carcinogenesis by changing many reactions affected by the ubiquitin-proteasome pathway. Due to its ability to change some biological processes such as NF-κB, inhibit some cyclins, and induce apoptosis, it can be used as a drug in cancer treatment
The impact of digitalization process on fundamental elements of tax: The case of Turkey
No full textEkonominin dijitalleşmesi, iş yapma biçimlerini köklü şekilde dönüştürmüş, yeni iş modelleri ve ticaretin doğasında köklü değişimleri ortaya çıkarmıştır. Bu dönüşüm, dijitalleşen ekonomik yapı içerisinde birçok yeni kavram, kurum ve ilkenin gelişmesine yol açarken verginin asli unsurlarını da etkilemiştir. Dijitalleşen ekonomik yapı içerisinde verginin asli unsurları yeni anlam ve özellikler kazanmış ve bu durum dijitalleşen ekonomik faaliyetleri vergilendirmede çeşitli zorlukları beraberinde getirmiştir. Bu çalışmada dijitalleşme sürecinin verginin asli unsurlarında yol açtığı değişimleri ve bu değişimlerin neden olduğu vergi zorluklarını ortaya koyarak Türkiye'de verginin asli unsurlarının dijitalleşme sürecine uyumlaştırılmasına yönelik öneriler geliştirilmesi amaçlanmıştır. Bu doğrultuda, dijital vergileme alanında uzman 10 katılımcı ile derinlemesine görüşmeler gerçekleştirilmiş ve elde edilen veriler MAXQDA nitel analiz programı ile çözümlenmiştir. Analiz sonucunda dijitalleşme sürecinin verginin asli unsurları içerisinde sırasıyla en fazla mükellef, verginin konusu, vergi matrahı, vergi sorumlusu, vergi oranı ve vergiyi doğuran olayda değişime neden olduğuna ulaşılmıştır. Verginin asli unsurlarındaki değişimler, vergi gelirlerini artırma fırsatı sunuyor olsa da bu değişimlere uygun düzenlemeler yapılırken en fazla geleneksel vergi kanunlarının dijital kavram ve faaliyetleri kavrayamaması, tespit ve denetim ile kaynak teorisinin uygulanması zorluklarıyla karşılaşıldığı belirlenmiştir. Bu zorlukların giderilememesi halinde Türkiye'nin vergi kayıp ve kaçakçılık tehdidiyle karşı karşıya kalabileceği tespit edilmiştir. Ayrıca Türkiye'de dijital vergileme alanında yapılan düzenlemelerin ise yeterli olmadığı ve var olan düzenlemeler içerisinde 3 No'lu KDV beyannamesi haricindeki tüm düzenlemelerin olumsuz yönlerinin, olumlu yönlerine oranla daha fazla olduğu sonucuna ulaşılmıştır. Elde edilen bulgular doğrultusunda Türkiye'de verginin asli unsurlarının dijitalleşme sürecine uyumlaştırılmasına yönelik vergi kanunlarında çeşitli değişiklikler yapılması önerilmiştir.The digitalization of the economy has radically transformed the ways of doing business and brought about new business models and fundamental changes in the nature of trade. While this transformation has led to the development of many new concepts, institutions and principles within the digitalized economic structure, it has also affected the essential elements of tax. In the digitalized economic structure, the essential elements of taxation have gained new meanings and characteristics, and this situation has brought various difficulties in taxing digitalized economic activities. In this study, it is aimed to develop recommendations for the adaptation of the essential elements of tax to the digitalization process in Turkey by revealing the changes caused by the digitalization process in the essential elements of tax and the tax difficulties caused by these changes. In this direction, in-depth interviews were conducted with 10 participants who are experts in the field of digital taxation and the data obtained were analyzed with MAXQDA qualitative analysis software. As a result of the analysis, it was found that the digitalization process caused the most changes in the taxpayer, the subject of the tax, the tax base, the tax responsible, the tax rate and the taxable event, respectively. Although the changes in the essential elements of tax offer an opportunity to increase tax revenues, it has been determined that the most difficulties encountered in making appropriate arrangements for these changes are the inability of traditional tax laws to comprehend digital concepts and activities, detection and audit, and the application of the source theory. If these challenges are not addressed, Turkey may face the threat of tax losses and evasion. In addition, it has been concluded that the regulations in the field of digital taxation in Turkey are not sufficient and that the negative aspects of all regulations, except for the VAT Declaration No. 3, are more negative than the positive aspects. In line with the findings obtained, it is suggested that various amendments should be made in tax laws to harmonize the essential elements of taxation with the digitalization process in Turkey
BEDEN EĞİTİMİ DERSİ AKRAN İLİŞKİLERİ ÖLÇEĞİ: GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI
Full text linkThis study aimed to develop a valid and reliable scale to assess peer relationships (e.g., communication, cooperation, social interaction and conflict situations) among students in physical education and sports classes. The scale development process included a literature review, item pool generation, expert evaluation, pilot testing, and psychometric analyses. Data were collected from 430 students for the Exploratory Factor Analysis (EFA) and 391 students for the Confirmatory Factor Analysis (CFA). EFA results indicated that the scale has a two-factor structure, explaining 48.3% of the total variance. The scale consists of nine items, with two subdimensions: “cohesion” (5 items) and “conflict” (4 items). CFA results supported the construct validity of the scale, with acceptable model fit indices (χ²/df = 3.10, RMSEA = 0.073, CFI = 0.937, TLI = 0.913). Internal consistency analysis showed that Cronbach’s alpha coefficient was 0.811 for the "cohesion" dimension and 0.793 for the "conflict" dimension. The findings demonstrate that the developed scale is a valid and reliable instrument for assessing peer relationships in physical education classesBu çalışmada, beden eğitimi ve spor derslerinde öğrenciler arasındaki akran ilişkilerini değerlendirmek amacıyla geçerli ve güvenilir bir ölçek geliştirilmesi hedeflenmiştir. Ölçek geliştirme süreci, literatür taraması, madde havuzu oluşturma, uzman görüşü alma, pilot uygulama ve psikometrik analizlerden oluşmuştur. Açımlayıcı Faktör Analizi (AFA) için 430 öğrenciden, Doğrulayıcı Faktör Analizi (DFA) için ise 391 öğrenciden veri toplanmıştır. AFA sonuçları, ölçeğin iki faktörlü bir yapıya sahip olduğunu ve toplam varyansın %48.3’ünü açıkladığını göstermiştir. DFA analizleri, ölçeğin yapı geçerliliğini desteklemiş ve modelin uyum indeksleri kabul edilebilir düzeyde bulunmuştur (χ²/sd = 3.10, RMSEA = 0.073, CFI = 0.937, TLI = 0.913). İç tutarlılık analizleri sonucunda Cronbach Alpha katsayısı uyum boyutu için 0.811, çatışma boyutu için 0.793 olarak hesaplanmıştır. Sonuçlar, geliştirilen ölçeğin beden eğitimi derslerinde akran ilişkilerini değerlendirmek için geçerli ve güvenilir bir araç olduğunu ortaya koymaktadır
İlkokula Geçiş Becerileri Yeterlik Ölçeği (İGBYÖ)’nin Geliştirilmesi: Geçerlik ve Güvenirlik Çalışmaları
Full text linkÇanakkale Onsekiz Mart Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi SDK-2023-4592 kodlu projeIn this study, it was aimed to develop the Primary School Transition Skills Competency Scale and to conduct validity and reliability studies in order to evaluate the transition skills between preschool and primary school levels by primary school teachers. In the 2023-2024 academic year, 476 primary school teachers working in public and private institutions affiliated to the Ministry of National Education participated in the scale study. After the literature review, expert opinions and pilot apply, the first research data were obtained by applying the pilot scale to 325 participants. Then, statistical procedures related to the exploratory factor analysis were performed and a scale consisting of 6 dimensions was obtained. The final scale was tested with 151 different participants and confirmatory factor analysis was performed and the reliability of the scale was analyzed. The confirmatory factor analysis results revealed that the factor structure obtained was compatible with the data. As a result, it was determined that PSTSCS has a 6-factor structure consisting of 39 items. Cronbach alpha internal consistency coefficient revealed the reliability structure of the scale with a value of 0.97Bu çalışmada okul öncesi eğitim ve ilkokul basamakları arası geçiş becerilerinin sınıf öğretmenleri tarafından değerlendirilebilmesi yönünde İlkokula Geçiş Becerileri Yeterlik Ölçeği (İGBYÖ)’nin geliştirilmesi ve geçerlik-güvenirlik çalışmalarının yapılması amaçlanmıştır. 2023 – 2024 eğitim öğretim yılında Milli Eğitim Bakanlığı’na bağlı resmi ve özel kurumlarda görev yapan 476 sınıf öğretmeni ölçek uygulamasına katılmıştır. Literatür taraması, uzman görüşleri ve pilot uygulamanın ardından denemelik ölçek, 325 katılımcıya uygulanarak ilk araştırma verileri elde edilmiştir. Ardından açımlayıcı faktör analizine ilişkin istatistiksel işlemler yapılarak ölçeğin 6 boyuttan oluşan haline ulaşılmıştır. Nihai ölçek, 151 farklı katılımcıya uygulanarak doğrulayıcı faktör analizi gerçekleştirilmiş ve ölçeğin güvenirliğine ilişkin analizler tamamlanmıştır. Doğrulayıcı faktör analizi sonuçları, elde edilen faktör yapısının veriyle uyumlu olduğunu ortaya koymuştur. Sonuç olarak İGBYÖ’nin 39 maddeden oluşan 6 faktörlü bir yapıya sahip olduğu belirlenmiştir. Cronbach alpha iç tutarlık katsayısı ise 0.97 değeri ile ölçeğin güvenirlik yapısını ortaya koymuştur.Bu çalışma, Çanakkale Onsekiz Mart Üniversitesi Sınıf Eğitimi Doktora Programında Prof. Dr. Bülent Güven danışmanlığında Emel Kırat tarafından yürütülen doktora tez verilerinden üretilmişti
Insights from ADPedKD, ERKReg and RaDaR registries provide a multi-national perspective on the presentation of childhood autosomal dominant polycystic kidney disease in high- and middle-income countries
No full textData on the presentation of Autosomal Dominant Polycystic Kidney Disease (ADPKD) in children have been based on small/regional cohorts and practices regarding both asymptomatic screening in minors and genetic testing differ greatly between countries. To provide a global perspective, we analyzed over 2100 children and adolescents with ADPKD from 32 countries in six World Health Organization regions: 1060 children from the multi-national ADPedKD registry were compared to 269 pediatric patients from the United Kingdom (RaDaR) and 825 from the European Rare Kidney Disease Registry (ERKReg). Asymptomatic family screening was a common mode of presentation (48% in ADPedKD, 62% in ERKReg) with broad international variability (19%-75%), but fairly stable temporal trends in both registries with no correlation to genetic testing. The national rates of genetic testing varied and correlated significantly with healthcare expenditure (odds ratio 1.030 per 100 United States Dollars/capita/year, in the ERKReg cohort), with little variation over time. Diagnosis due to prenatal abnormalities was more common than anticipated at 14% increasing steadily from 2000 onward in both registries. Realistically, a high proportion of children were diagnosed with ADPKD by active screening, underlining that families affected by ADPKD have a high need for counselling on the complex issues around presymptomatic diagnosis. Regional variations in rate of genetic testing appeared to be driven by economic factors. However, large differences in rate of active screening were not correlated to healthcare spending and probably reflect the influence of different of cultural, legal and ethical frameworks on families and clinicians in different healthcare systems.Universität zu Köln, UoCADPKD Fund KU LeuvenUniversity of AlabamaERKReg CollaboratorsUniversity Hospitals, UHEuropean Society of Pediatric NephrologyNational Institutes of Health, NI
Fabrication and Characterization of MOF-Doped Composite Polyvinyl Alcohol Membrane and Investigation of Its Potential for Carbon Dioxide Separation from Flue Gas
Full text linkFYL-2021-3774The objective of this work was to prepare glassy polymeric membranes for the purpose of separating carbon dioxide from flue gas mixtures and to conduct gas separation experiments using these membranes. Metal organic framework (MOF) was added to the membranes to improve their ability to select carbon dioxide, thereby enhancing the strength of the membrane and gas separation performance. Therefore, MIL 140B was synthesized, composite polyvinyl alcohol membranes were prepared, characterized and tested for carbon dioxide nitrogen removal. Increasing MIL 140B content significantly increased the tensile strength and mechanical strength. However, a significant decrease in mechanical strength was observed at 4 wt.% of filler doped membrane. In gas separation studies, first single gas and then mixed gas tests were performed. In both cases, MIL 140B additive increased both carbon dioxide selectivity and permeability. MIL 140B ratio increased from 0 wt.% to 4 wt.%, CO permeability increased from 92 Barrer to 179 Barrer and selectivity increased from 41.4 to 58.7
Vocabulary of Haldun Taner's storybook Şişhaneye Yağmur Yağıyordu
No full textSöz varlığı kuşaktan kuşağa aktarılarak yaşayan, insan ve çevresine ilişkin kavramları yansıtan sözcüklerin toplamıdır. Bir dilin söz varlığı denilince; o dile ait sözcükler, sözler, deyimler, atasözleri, terimler ve çeşitli anlatım kalıplarının hepsi kastedilmektedir. Bu çalışmanın temel amacı, tiyatro ve hikâye türünde verdiği eserlerinde dili başarıyla işleyen Haldun Taner'in Türkçenin söz varlığı birikiminde yer alan ögeleri eserlerine ne ölçüde yansıttığıdır. Bu bağlamda sanatçının Şişhane'ye Yağmur Yağıyordu adlı eseri söz varlığı unsurları açısından ele alınarak yazarın dil ve üslubu incelenmiştir. Çalışma dört bölümden oluşmaktadır. Birinci bölümde söz varlığı, Haldun Taner'in hayatı, sanat anlayışı ve eserleri hakkında bilgiler ile ele alınan kitabının özeti verilmiştir. İkinci bölümde ise eserdeki temel söz varlığı ögeleri sınıflandırılarak verilmiştir. Üçüncü bölümde eserde yer alan sözcüklerin dizini verilmiştir. Sözcükler güncel sözlüklerdeki tanımlarıyla ve kitapta geçtikleri yerin bilgileriyle birlikte verilmiştir. Ayrıca eserde yer alan özel adlar için de bir dizin oluşturulmuştur. Dördüncü bölüm olan sonuçta ise; esere ait bulgular yer almaktadır. Yazarın sahip olduğu entelektüel birikimi hikâyelerinde; toplumsal gerçekliğe yönelme, her kesimden insanı ele alma gibi yönlerden ortaya çıkmaktadır. Bu özellik eserin dilinde ise kahramanların özelliklerine göre konuşma diline yer verme olarak karşımıza çıkmaktadır. Zaman zaman yerel ağızlara, argo sözlere ve yabancı kelimelere yer vermektedir. Eserinde yabancı sözcüklerin sayısı yadsınamayacak ölçüdedir. Bunda hikâyelerinde yabancı mekân ve kişilerin yer almasının büyük etkisi vardır. Ayrıca yazar anlatımında ikilemeler, terimler, yansıma sözcükler, alıntı sözcük ve cümlelere de çokça yer vermektedir. Atasözü ve deyimlere de sıklıkla başvuran yazar, bazı kullanımlarda kalıp ifadeyi bozma ya da yeni ifade oluşturma yoluna da gitmiştir.Vocabulary is the collection of words that live by being passed down from generation to generation, reflecting concepts related to humans and their environment. When the vocabulary of a language is mentioned, it encompasses all words, phrases, idioms, proverbs, terms and various expression patterns belonging to that language. The main purpose of tis study is to analyze the extent to which Haldun Taner, a writer who skillfully uses language in his works in the genres of theater and storytelling, reflects the elements of Turkish vocabulary in his works. In this context, the author's work Şişhane'ye Yağmur Yağıyordu has been examined in terms of vocabulary elements and the author's language and style have been analyzed. The study consists of four sections. In the first section, information about vocabulary, Haldun Taner's life, his artistic perspective and his works is provided , along with a summary of the examined book. In the second section, the main vocabulary elements in the work are calssified and presented. The third section includes an index of the words in the work. Words are given with their definitions in contemporary dictionaries and information about where they appear in the book. Additionally, a separate index has been created for proper nouns in the work. The fourth section, the conclusion, presents the findings related to the work. The author's intellectual depth is evident in his focus on social realities and his approach to portraying people from all walks of life in his stories. This characteristic is reflected in the language of the work as characters speak according to their individual traits. Local dialects, slang words and foreign words are occasionally included. The number of foreign words in the work is significant, largely due to the presence of foreign settings and characters in the stories. Furthermore, the author frequently uses reduplications, technical terms, onomatopoeic words, borrowed words and sentences. Proverbs and idioms are also commonly used with the author occasionally altering fixed expressions or creating new ones