Erişime Açık

Forecasting realized volatility of BIST indices with har-type models

Köksal, Emre Ahmet

In this paper, realized volatility of a selection of BIST Indices are forecasted with Heterogeneous Autoregressive Model (HAR) and its variations. For this purpose, ticks between 2001 and 2021 are used to generate 5-minute returns, which formed the basis for calculations of realized volatility and other realized measures. In the study, rolling windows are utilized for forecasting the volatility of one day ahead. These predictions are then compared to the actual realized volatilities. The study provides a thorough comparison of HAR-type models, and emphasizes the importance of underlying time s ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 52 Görüntülenme

Erişime Açık

Gender representation in television advertising and stereotypes on women in advertisements

Üçkaleler, Beyza

In addition to many other features, people appear in television advertisements with their gender characteristics. The way in which biological and social gender is used in visual designs varies according to the existing cultural and social characteristics. The characteristics of being the focus of domestic life, motherhood, companionship, housework, beauty and sexuality, which society imposes on women and femininity, have been changing in recent years, and this change also makes itself felt in the field of visual design. The new forms of existence of women in the society are also reflected in t ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 92 Görüntülenme

Erişime Açık

An analysis of the impact of social media on rational voting behavior of generation Z

Haser, Serkan

Developing Information and Communication Technologies have significantly changed lifestyle and many areas of life. As the new media has increased effect in intelligence, content producing etc., and network systems have become an integral part of life, we are witnessing accelerated flow of information. Individuals have started to quickly access all kinds of information their countries and across the world. All these developments are inevitably reflected in political life. As a matter of fact, political actors inevitably need to update and innovate their methods of reaching Generation Z. In part ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 62 Görüntülenme

Erişime Açık

Understanding brands’ sustainability communications in social media: How the source of communication influences consumers’ responses

Oran, Helin Ezgi

With increasing environmental concerns and a shift towards sustainable consumption, brands are employing social media as a powerful platform to communicate their sustainability initiatives. This study investigates the effect of sustainability communication on Instagram on consumer perceptions with a specific focus on nonluxury hygiene products. Drawing from an extensive literature review, this research explores how consumer perceptions of brand efforts for environmental sustainability affect brand attitude, word-of-mouth (WOM), brand engagement, and purchase intentions. Additionally, it exami ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 28 Görüntülenme

Erişime Açık

Artırılmış gerçeklik destekli etkileşimli infografik tasarımı: İstanbul Rahmi M. Koç müzesi örnek uygulaması

Şilit, Renç

İnsanoğlu tarih boyunca merak içgüdüsü ile yaşamını sürdürmüş, bilgiye ulaşmak ile meşgul olmuştur. Bilgi kavramı üzerinde yoğunlaşan insan, topluluğun devamını ve varlığını sürdürmek için güç unsuru olarak bilgiyi kullanmıştır. Bilgi, en küçük toplumsal oluşumdan evrenin işleyişini anlamaya, gerçekleşen veya gerçekleşebilecek olayların anlaşılmasını ve kontrol altına alınmasını sağlayan bir deneyimler bütünüdür. İnsanlık devinime uğrarken bilgiye ulaşmanın ve kullanımının da çeşitlendiği bilinmektedir. Analog dönemlerden farklı olarak; dijital çağda bilgi, toplumun tamamına ulaşabilmektedir. ...Daha fazlası

Preprint 2024 Yeditepe Üniversitesi Akademik ve Açık Erişim Bilgi Sistemi 65 Görüntülenme

Large-scale forecasting of large fluctuations using wavelet coherence and multifractal behavior and developing wavelet coherence for multiple time series

Oygur, Tunç

Shocks, jumps, booms, and busts are typical large fluctuation markers that appear in crisis. Identifying financial crises and estimating leading indicators with strong relations during crisis periods have an essential role in the literature. This thesis examines the dynamic co-movements of leading indicators' multifractal features to identify financial crises due to large fluctuations. The detected dynamic relationships predict leading indicators with scale-by-scale analysis and make large-scale predictions better than challenger models. As a natural result of these studies, the n-dimensional ...Daha fazlası

Preprint 2022 Yeditepe University Academic and Open Access Information System 18 Görüntülenme

Erişime Açık

An exploratory study of a Turkish sample of persons with hoarding behavior

Ekiz, Saliha Ceren

Hoarding research in Turkey is still in an early stage, where both quantitative and qualitative research is needed to understand hoarding in the Turkish context. This is an exploratory qualitative study of a Turkish sample of individuals who exhibit compulsive hoarding behavior. The study consists of two phases. Firstly, an online hoarding screening survey (N=357) was conducted using three diagnostic tools (i.e., Saving Inventory-Revised, Hoarding Rating Scale, and Clutter Image Rating). Secondly, the participants (n=13) who met the criteria for hoarding disorder were invited to an online inte ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 76 Görüntülenme

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The mediating role of organizational cynicism perceived by employees on the effect of applied managerial power sources on the intention to quit

Alıcı, Özlem

In this study, it was tried to determine the mediating role of organizational cynicism perceptions of employees in the effect of managerial power sources applied by five-star hotel management managers on their intention to leave. The research universe of the study is the five-star hotel businesses in Istanbul. The sample of the research consists of 272 hotel employees determined by random sampling method among the employees in these enterprises, and the survey method was used in the research. Data were collected by face-to- face and online survey method. The data obtained as a result of the re ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 67 Görüntülenme

Erişime Açık

Kırım’da yaşanan i̇lk Rus i̇stilası 1736

Budak, Rüçhan

1699 Karlofça Antlaşması sonrası Osmanlılar, erken XVIII. yüzyıla kaybedilen toprakları geri alma politikası takip etmişti. Bu politika gereği 1711 yılında Azak kalesini Ruslardan ve 1714 yılında Mora yarımadasını da Venedik’ten geri almıştı. 1736 senesine gelindiğinde Ruslar, Karadeniz’in kuzeyine hâkim olabilmek için Azak kalesini ele geçirip Kırım Hanlığı’nı ilhak etme politikası takip ettiler. Osmanlılar ile Ruslar arasında cereyan eden bu savaşta Kırım Hanlığı tarihinde ilk kez yabancı güçler tarafından istilaya maruz kalmıştı. 1736 senesinde Ruslar adına Mareşal Münih, Kırım’ı istila ede ...Daha fazlası

Preprint 2023 Yeditepe Üniversitesi Akademik ve Açık Erişim Bilgi Sistemi 89 Görüntülenme

Erişime Açık

Limited şirketlerde sermaye borcunun ifasında temerrüt ve ıskat yaptırımı

Özkan, Seray

6102 sayılı Türk Ticaret Kanunu’nda sermaye şirketlerinden biri olarak kabul edilen limited şirketlerin sayısında son zamanlarda önemli ölçüde artış görülmektedir. Söz konusu artışın en önemli sebeplerinden birini, limited şirketlerin sermaye şirketi olarak kabul edilmesinin yanı sıra, yapısında şahıs niteliğinin bulunması oluşturmaktadır. Bu sebeple, daha çok ortakların şahsi özelliklerinin ön planda olduğu aile işletmeleri ya da anonim şirketlere nazaran daha küçük hacme sahip olan limited şirketlerin kurulması tercih edilmektedir. Bir limited şirketin kurulabilmesi ve varlığını sürdürebilme ...Daha fazlası

Preprint 2023 Yeditepe Üniversitesi Akademik ve Açık Erişim Bilgi Sistemi 98 Görüntülenme

An instructional design for new cognitive structure construction in native language on second language learning

Erden, Münire

This study aims to design a second language instruction through the construction of new cognitive structures in the mother tongue and to determine its effect on the learner's cognitive load and achievement in learning complex structures. The study was undertaken in a public university in Istanbul with 79 prep school students and designed as a quasi-experimental study. A subjective cognitive load scale developed by Paas (1992) and an achievement test were utilized as the data collection tools. A covariance analysis (ANCOVA) was employed to determine student achievement between the experiment an ...Daha fazlası

Preprint 2021 Yeditepe University Academic and Open Access Information System 11 Görüntülenme

Erişime Açık

Shamanism or shamanism, a comparative approach toward siberian Shamanism

Kızılhan, Cemil Ömer

Shamanism has been considered as a singular phenomenon in most of the studies carried out about Shamanism so far, and it has not been taken into consideration that there are different types of Shamanism. Shamanist beliefs, which were developed in a very large region such as Siberia, were divided into different branches as a result of different social, cultural and political effects in Siberia, and led to the emergence of Shamanist practices called Paleo-Siberian Shamanism and Neo-Siberian Shamanism.

Preprint 2023 Yeditepe University Academic and Open Access Information System 87 Görüntülenme

Detaylı Arama

Filtreler

Koleksiyon [1]

İlgili Araştırmacılar [20]

Ambargo Durumu [1]

Tam Metin [1]

Eser Adı [20]

Yazar [Asıl] [20]

Yayın Tarihi [4]

Yazar Departmanı [20]

Yazar [KatkıdaBulunan] [20]

Yazar [KatkıdaBulunan] Kurum [20]

Esere Katkı Sağlayan [1]

Konu Başlıkları [Genel] [20]

Yayın Türü [Ortam] [1]

Dil [2]

Yayıncı [2]

Erişim Hakkı [1]

Yayın Turu [Akademik] [1]

Köksal, Emre Ahmet

Üçkaleler, Beyza

Haser, Serkan

Oran, Helin Ezgi

Şilit, Renç

Oygur, Tunç

Ekiz, Saliha Ceren

Alıcı, Özlem

Budak, Rüçhan

Özkan, Seray

Erden, Münire

Kızılhan, Cemil Ömer