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Gül Koklayan II. Mehmet Tablosunun Gentile Bellini’nin Tablosu Temelinde Kültürel Açıdan Önemi
No full textThis paper examines the painting of Mehmet II, which was painted by Sinan Bey/ Şiblizade Ahmed based on the painting by Gentile Bellini. Those works of art show Mehmet the Conqueror in the same perspective by using different materials and styles of painting. Mehmet II is depicted as the Conqueror of Constantinople in this painting and the painting also includes concepts of Ottoman culture. This paper illustrates the ways in which particular Western elements of art commingled with traditional Turkish art imagery to depict the Sultan’s power over Constantinople. Both paintings represent different aspects of Mehmet the Conqueror. Both painters convey their own cultural consciousness and impressions in their paintings. Even though, Gentile Bellini and Şiblizade Ahmed made a similar artistic creation, they present different perspectives of Mehmet II within their own cultural framework. In addition, this paper shows how a local artist was inspired by a foreign artist. Furthermore, the two paintings are explained based on the objects and features used. In conclusion, this study shows that both paintings are also arranged within their own long memory and different social, cultural, and historical point of views to materiality.Bu makale, Sinan Bey veya Şiblizade Ahmed tarafından Gentile Bellini’nin resmine dayanarak yapılan Fatih Sultan Mehmet’in tablosunu ele almaktadır. Bu sanat eserleri Fatih Sultan Mehmet’i, farklı malzeme ve stiller kullanmalarına rağmen aynı açıdan göstermektedir. Fatih Sultan Mehmet Konstantinopolis’in Fatihi olarak resmedilmekle birlikte, bu resimler Osmanlı kültürel kavramlarını da içermektedir. Makalede, belirli Batı sanatı öğelerinin, Sultan’ın Konstantinopolis üzerindeki gücünü tasvir etmek için geleneksel Türk sanat imgeleriyle nasıl bir araya getirildiğini de göstermeye çalışmaktadır. Fatih Sultan Mehmet’in yer aldığı bu iki tabloda, Sultan’ın bir saray ressamı ve bir yabancı ressam tarafından farklı yönleri tasvir edilmektedir. Burada, her iki ressamın da sahip oldukları kültürel bilinci ve izlenimi resimlerine aktardıkları görülmektedir. Gentile Bellini ve Şiblizade Ahmed, benzer sanatsal eserler ortaya çıkarmış olsalar da Fatih Sultan Mehmet’i kendi kültürel çerçeveleri içinde farklı bakış açısıyla sunmaktadırlar. Ek olarak, bu makale yabancı bir sanatçının yerel bir ressama nasıl ilham kaynağı olduğunu da göstermektedir. Ayrıca, iki resim sanatçıların kullanıldıkları nesnelere ve özelliklere dayanarak açıklanmıştır. Sonuç olarak, bu çalışma her iki resmin kendi sahip olduğu uzun süreli bellek ve farklı sosyal, kültürel ve tarihsel bakış açıları içinde düzenlendiğine işaret etmektedir
A conceptual framework of the service delivery system design for hospitality firms in the (post-)viral world: The role of service robots
No full textThis study aims to develop a conceptual framework of the service delivery system design for hospitality firms in the (post-)viral world. Several theoretical approaches such as resource-based view, value chain analysis, stakeholder theory, PESTEL analysis, positioning strategy, and service delivery system design were adopted. The paper identified three service delivery system designs (robotic, human-based, and mixed) and analyses their requirements, advantages, disadvantages, and potential target markets. According to the suggested model, hospitality firms need first to explore the expectations of tourists. Then comes the analysis phase (based on a holistic perspective, and consisting of RBV, Value chain, Stakeholder, and PESTEL analyses), which helps hospitality firms to identify how they should differentiate and position themselves in the market. Following, companies decide on what kind of service delivery system they should offer to their target customers, and position themselves in the market according to the chosen system
Effects of Different Doses of IBA (Indole-3-Butyric Acid) and Rooting Media on Rooting of Some Medicinal Plants
Get PDFBu çalışma; yağ gülü (Rosa damascena Mill.), kadıntuzluğu (Berberis thunbergii DC.), biberiye (Rosmarinus officinalis L.) ve lavanta (Lavandula angustifolia Mill.) bitkilerine ait çeliklerde, farklı köklendirme ortamları [torf, perlit, torf-perlit (1:1) ve kokopit] ve indol-3-bütirik asit (IBA) dozlarının (0, 1000, 2000, 3000, 4000, 5000 ppm) köklenmeye etkilerini saptamak amacıyla yapılmıştır. Çelikler, sera ortamında farklı IBA çözeltilerine maruz tutularak dört farklı ortamda dikimleri yapılmıştır. Yaklaşık 80 gün köklendirmeye bırakılan çeliklerde köklenme oranları, kök uzunlukları ve kök sayıları belirlenmiştir. Araştırma sonucunda, köklendirme ortamları ve farklı dozlardaki IBA uygulamalarının yağ gülü, kadıntuzluğu, biberiye ve lavanta çeliklerinde köklenmeye etkisi anlamlı bulunmuştur. Yağ gülü, kadıntuzluğu, biberiye ve lavanta bitkilerinde en yüksek köklenme oranları sırasıyla % 95.00, % 81.67, % 88.33 ve % 82.50; kök sayıları sırasıyla 19.28, 13.44, 26.12 ve 17.38 adet bitki-1 ve kök uzunlukları sırasıyla 18.89, 14.32, 25.58 ve 17.26 cm ile perlit köklendirme ortamında ve 4000-5000 ppm IBA çözeltisinde olduğu tespit edilmiştir. Bitki çeliklerinin köklendirme ortamı olarak perlit ortamından, IBA dozu olarak ise adventif köklenmeyi teşvik eden 4000 ppm uygulamasından en iyi sonuçlar alınmıştır.This study was carried out to determine the effects of different rooting media (peat, perlite, peat-perlite (1: 1), and cocopeat) and IBA doses (control, 1000, 2000, 3000, 4000, 5000 ppm) on rooting of damask rose (Rosa damascena Mill.), Thunberg barberry (Berberis thunbergii DC), rosemary (Rosmarinus officinalis L.) and lavender (Lavandula angustifolia Mill.) cuttings. The cuttings were exposed to different indole-3-butyric acid (IBA) solutions in the greenhouse and planted in four different medium. Rooting percentage, root lengths, and the number of the roots were determined for the cuttings which were left to rooting for approximately 80 days. As a result of the study, the effect of rooting medium and different doses of IBA on rooting in damask rose, thunberg barberry, rosemary, and lavender cuttings were found to be statistically significant. The highest rooting percentages for the damask rose, thunberg barberry, rosemary, and lavender were found to be 95.00%, 81.67%, 88.33%, and 82.50%; number of roots were 19.28, 13.44, 26.12 and 17.38 per plant; and root lengths were 18.89, 14.32, 25.58 and 17.26 cm, respectively, in perlite rooting medium and 4000-5000 ppm IBA solution. The best results for rooting medium were obtained from perlite and the best results for the IBA dose were obtained from 4000 ppm application that promotes adventitious rooting
The Relationship between Competencies of Teachers Towards Students with Learning Disabilities, Their Resources of Self-Efficacy and Positive Teaching Skills
Get PDFGünümüzde öğrenme güçlüğü yaşayan çocukların eğitimi, toplumsal bir sorun haline gelmiştir. Türkiye’de de bu konu ile ilgili yapılan araştırmalar sınırlı düzeydedir. Bu çalışmada, öğretmenlerin öğrenme güçlüğü yaşayan öğrencilere yönelik yeterlikleri, öz yeterlik kaynakları ve pozitif öğretmenlik becerileri arasındaki ilişkisinin incelenmesi amaçlanmaktadır. Nicel araştırma olarak tasarlanan araştırmanın çalışma grubunu, tesadüfen seçilen 25 resmi ilkokul ve 10 özel ilkokulda görev yapan toplam 317 öğretmen oluşturmaktadır. Veri toplama aracı olarak Öğrenme Güçlüğü Yaşayan Öğrencilere Yönelik Öğretmen Yeterlilikleri Ölçeği, Pozitif Öğretmen Ölçeği ve Öz Yeterlik Kaynakları Ölçeği kullanılmıştır. Verilerin çözümlenmesinde betimleyici istatistikler ve Pearson Korelasyon katsayıları kullanılmıştır. Sonuçta; öğretmenlerin derste akış yaşatmak ile dikkate alma, güdüleme, derse odaklanma, dikkat toplama ve olumlu tutum arasında pozitif yönde, orta düzeyde ve anlamlı bir ilişki ortaya çıkmıştır.Today, the education of children with learning disabilities has become a social issue. There are few studies on this subject in Turkey. This study aims to investigate the relationship between competencies of teachers towards students with learning disabilities, their self-efficacy resources of and positive teaching skills. The study group of the research, which is designed as quantitative research, consists of 317 teachers working in 25 official primary schools and 10 private primary schools. The Teacher Competencies towards Students with Learning Disabilities Scale, the Positive Teacher Scale and Self- Efficacy Resources Scale were used for data collection. Descriptive statistics and Pearson correlation coefficients were used to analyze the data. As a result, a positive, moderate and significant relationship was found between the teachers' positive attitudes and creating a flow during the course, consideration, motivation, focus on the lesson, and attention gathering
The Role of Natural Antioxidants Against Reactive Oxygen Species Produced by Cadmium Toxicity: A Review
Get PDFCadmium (Cd) is a significant ecotoxic heavy metal that adversely affects all biological processes of humans, animals and plants. Exposure to acute and chronic Cd damages many organs in humans and animals (e.g. lung, liver, brain, kidney, and testes). In humans, the Cd concentration at birth is zero, but because the biological half-life is long (about 30 years in humans), the concentration increases with age. The industrial developments of the last century have significantly increased the use of this metal. Especially in developing countries, this consumption is higher. Oxidative stress is the imbalance between antioxidants and oxidants. Cd increases reactive oxygen species (ROS) production and causes oxidative stress. Excess cellular levels of ROS cause damage to proteins, nucleic acids, lipids, membranes and organelles. This damage has been associated with various diseases. These include cancer, hypertension, ischemia/perfusion, cardiovascular diseases, chronic obstructive pulmonary disease, diabetes, insulin resistance, acute respiratory distress syndrome, idiopathic pulmonary fibrosis, asthma, skin diseases, chronic kidney disease, eye diseases, neurodegenerative diseases (amyotrophic lateral sclerosis, Parkinson’s disease, Alzheimer’s disease, and Huntington disease). Natural antioxidants are popular drugs that are used by the majority of people and have few side effects. Natural antioxidants play an important role in reducing free radicals caused by Cd toxicity. Our goal in this review is to establish the relationship between Cd and oxidative stress and to discuss the role of natural antioxidants in reducing Cd toxicity
Determining Effect of Plyometric Exercises on Various Motoric Characteristics for Woman Volleyball Players
Get PDFThe aim of this study is to investigate the effect of plyometric training on the agility, vertical jump and 20 meter speed tests performance and volleyball performance of female volleyball players. The study was carried out on 14 female athletes from the 13-14 age group of Izmit DSI Sports Club whose sports age was 3.5 ± 0.70 years. Athletes were randomly divided into two groups as experimental (n=7) and control (n=7). Volleyball-specific technical-tactical trainings and plyometric training program were applied to the experimental group for 8 weeks, 3 days a week and 90 minutes in scope. The control group continued only 90 minutes of volleyball training. Prior to plyometric training, both groups were given agility, vertical jump and 20 meter speed tests as pre- and post-tests. First and last test values of the groups were determined and descriptive statistics were made by using SPSS 22.0 statistical package program. Wilcoxon test was used to compare the first and last measurements of the groups, and Mann-Whitney U test was used to compare the data of the control and experimental groups. According to the data obtained, when the experimental group first test and last test were compared, it was found that there was a statistically significant increase in vertical jump and illionis agility test results (p0.05). There were statistically significant differences between the two groups in the comparison of the final measurement values of 20 meters speed, vertical jump and illinois agility test between the groups (p<0.05). As a result, it can be said that 8-week plyometric training has a positive effect on the speed, agility and vertical jump performance of volleyball players in the 13-14 age group
Investigation of Word Vector Models Trained with Turkish Hotel Comments by Sentiment Analysis
Get PDFDoğal dil işlemenin(Natural Language Processing-NLP) ve metin sınıflandırmanın önemli araştırma alanlarından biri de duygu analizidir. Bu alanda çalışmalar hızla büyümektedir. Bu teknik dijital yaşamın her çeşit uygulama alanında kendini göstermektedir. Duygu analizi için geliştirilen birçok teknik vardır ancak son zamanlarda doğal dil işlemenin kelime vektör modeli metotları duygu analizinde yaygın olarak kullanılmaya başlamıştır. Word2Vec kelimeleri anlamlı vektörlere dönüştürebilen en kullanışlı kelime vektör modeli yöntemleri arasındadır. Bu yöntem ile kelime vektörleri oluşturabilmek için büyük kelime havuzlarına ihtiyaç vardır. Önceden eğitilmiş modeller duygu analizinde daha doğru sonuçlara ulaşabilmeyi mümkün kılarlar. Bu çalışmada duygu analizinde incelenmek üzere, onaylanmış kullanıcıların Türkçe otel yorumları veri kazıma yöntemleri ile toplanmıştır. Elde edilen bu özgün veriler Word2Vec ile eğitilerek kelime vektörleri oluşturulmuştur. Bu vektörler ile tekrarlanan yapay sinir ağının (Recurrent Neural Networks-RNN) bir çeşidi olan geçitli tekrarlayan birimler (Gated Recurrent Unit-GRU) ile bir sınıflandırma modeli geliştirilmiştir. Daha geniş kelime torbalarıyla eğitilmiş kelime vektörleri ile rastgele değerler atanarak oluşturulan vektörler, aynı derin öğrenme yöntemiyle yeniden incelenmiş ve elde edilen sınıflandırma başarıları karşılaştırılmıştır. Elde edilen sonuçlara göre özel alandan bağımsız, daha geniş kapsamlı kelime torbalarının sınıflandırma başarısını arttırdığı gözlemlenmiştir.One of the important research areas of Natural Language Processing and text classification is sentiment analysis. Studies in this area are growing rapidly. This technique manifests itself in all kinds of applications of digital life. There are many techniques developed for sentiment analysis, but recently, word embedding methods of natural language processing have become widely used in sentiment analysis. Word2Vec is one of the most useful word embedding methods that can convert words into meaningful vectors. In order to create word vectors with this method, large word pools are needed. Pre-trained models make it possible to achieve more accurate results in sentiment analysis. In this study, Turkish hotel reviews of approved users were collected by data scraping methods for examination of sentiment analysis. Obtained from the original data by training with Word2Vec word vectors were created. With these vectors, a classification model has been developed with Gated Recurrent Unit which is a kind of Recurrent Neural Networks. The vectors formed by assigning random values to wider corpus-trained word vectors were re-examined with the same deep learning method and the obtained classification successes were compared. According to the results, it was observed that the broader corpus independent of the private area increased the success of classification
Tourists’ perceptions of the tour guides: the case of gastronomic tours in Istanbul
No full textThe aim of the present study is to understand tourists’ perceptions of the professional tour guides in gastronomic tour experiences. This study adopted a qualitative case study approach utilizing user-generated content by analysing travellers’ comments on the TripAdvisor website. The data was collected between 28 February-18 April 2019 from travellers’ reviews of experiences they had between January 2017 and February 2019. The findings reveal four core themes: attributes, knowledge, communication skills (educators, involving tour members and maintaining their attention) and value-added experience. Moreover, a model explaining the relationship between the themes is also provided. Since no previous empirical studies exist on the tourists’ perceptions of the tour guides in gastronomic tour experiences, with providing an in-depth understanding of the subject, this study fills a gap in the current literature
Shamanism: Anatomy of an Ambiguous Concept
Get PDFŞamanizm kavramı 1950’li yıllarda Mircea Eliade gibi din bilimcilerin ça-lışmalarıyla birlikte anlam genişlemesine uğrayarak daha büyük bir evreni ifade etmek üzere kullanılmaya başlanmıştır. Ancak bugenişleme bir yan-dan geçmişteki dar anlamından önemli izler taşırken bir yandan da muğlak bir alana işaret etmektedir. Bu bağlamda Şamanizm kavramının yaşadığı anlam genişlemesi ve neticesinde ortaya çıkan kimi sorunlardan söz edile-bilir. Bu çalışma dinler tarihi, antropoloji ve arkeoloji gibi alanlar açısın-dan son derece önemli olan Şaman/Şamanizm kavramının tarihsel süreç içerisinde yaşadığı anlam değişikliğini ve bunun oluşturduğu algıyı konu edinmektedir.The concept of shamanism began to be used in the 1950s to express a larger universe by expanding meaning with the studies of religious scholars such as Mircea Eliade. However, this enlargement, on the one hand, has important traces of its narrow meaning in the past, while pointing to an ambiguous area. In this context, it can be mentioned that the meaning of the concept of shamanism expanded and some problems arising as a result. This study focuses on the semantic change and perception created by the concept of shaman/shamanism, which is very important in terms of the his-tory of religions, anthropology, and archeology
Thin-Layer Drying Modeling in the Hot Oil-Heated Stenter
Get PDFAlthough the drying processes have an important place in the textile industry in terms of drying or various textile finishing applications, they are considered as an expensive process in terms of energy and time consumed. Therefore, it is of great importance to simulate with mathematical models the drying behavior of a stenter (ram machine), one of the most preferred convection dryers in the textile industry. For this purpose, in this study, modeling was attempted of the drying behavior of 67 % Cotton + 33 % Polyester containing Thessaloniki knit fabrics, using experimental data obtained from drying processes performed in 9 different drying operations in a 10-chamber hot oil-heated stenter and 12 different empirical and semi-empirical thin-layer models that are frequently used in the literature. R2 values from regression analysis were evaluated as the primary factor in the model fit selection. According to the results obtained, it was understood that the Diffusion Approach model with R2 values ranging from 0.9991 to 0.9999, Two Term Model with R2 values ranging from 0.9995 to 0.9999, and the Modified Henderson and Pabis model with R2 values ranging from 0.9995 to 0.9999 gave the most appropriate results upon simulating drying behavior. In this regard, this study, which contains explanatory information on the drying behavior in a stenter, is thought to be useful to researchers