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Bulunan: 13 Adet 0.001 sn
Yazar [KatkıdaBulunan] Kurum : Yeditepe University ... ✕
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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 6 Görüntülenme
Erişime Açık

The effect of supply chain agility and supply chain resilience on firm performance: A Study of the Marmara organized industrial zones

Gökhan, Esra Nur

Today, supply chain agility and supply chain resilience are two important concepts that companies try to invest in with their existing resources. In the rapidly changing and complex global world, the survival of companies and the ability to cope with their competitors resiliently depend on using their resources most efficiently. In addition, if these companies integrate digital technologies into their operations so they can quickly respond to customer expectations and increase the satisfaction of their customers who play a key role today. The first aim of this study is to investigate the effec ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 12 Görüntülenme
Erişime Açık

The role of self disgust in the relationship between childhood trauma and dissociation

Aydoğan, Ece Gül

In this study, it was aimed to examine the mediating role of self-disgust in the relationship between childhood traumas and dissociation in adults. 376 participants between the ages of 21-50 participated in the study. “Sociodemographic Information Form”, Childhood Mental Trauma Scale 33-item Form, Dissociation Scale and Self-Disgust Scale were used on the participants. In the study, Pearson Correlation was applied to examine the relationship between childhood traumas, dissociation, and self-disgust. Mediator role analysis was conducted to examine the mediating role of self-disgust in the effec ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 8 Görüntülenme
Erişime Açık

The adaptation study of the brief form of the affective Neuroscience personality scales (BANPS) to Turkish

Uçar, Nehir

The aim of this study is to adapt Brief Form of Affective Neuroscience Scales (BANPS) into Turkish culture and examine its reliability and validity. BANPS was originally developed by Barrett and colleagues (2013) to shorten and improve the psychometric properties of ANPS (Davis et al., 2003). The BANPS consisted of 33 items and six scales which aim to assess personality traits on the basis of six affective systems (SEEK, PLAY, CARE, FEAR, ANGER, SADNESS). The reliability and validity analyses of Turkish BANPS were conducted with three groups of participants, including all participants (N= 873) ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 6 Görüntülenme
Erişime Açık

A research on the effects of basel criteria on sme’s and awareness of this effect by Turkish financial professionals in the Turkish banking system

Sapankaya, Aysel

The aim of this study is to find out the effects of Basel Criteria on the banking system and SMEs, and how much they are known by the bankers and accounting experts who are the actors of the financial system. In this research, firstly, the role of Basel Criteria of SMEs in Turkey in the crediting process, the collateral structure and the credit pricing processes in the lending stage were examined. In the second part, a survey was conducted with 69 experts (bankers and accountants) who are experts in their fields about the extent to which they create awareness about the benefits of these effect ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 20 Görüntülenme
Erişime Açık

Financial performance measurement with cash flow ratios: a research and comparison on borsa istanbul (BIST) main metal industry and accomodation sector

Gürdal, Banu İpek

As soon as people start to earn the money that their labor deserves, they begin to control their cash inflows and outflows. This control is more important for businesses established for profit making. Businesses that want to control their cash flows in a more detailed and neat report form refer to the cash flow statement. Knowing cash flow is vital for businesses. It provides both the control of the cash flow within themselves and the opportunity to compare itself with other businesses that use different accounting methods. The success and sustainability of a business is evaluated by the measu ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 10 Görüntülenme
Erişime Açık

Online psychotherapy setting and its reflections on Therapeutic relationship during Covid-19 pandemic

Özkan Ordulu, Nazlıcan

The purpose of this study was to explore how psychotherapy setting is affected by the mandatory conversion from face-to-face psychotherapy setting to online platforms due to COVID-19 pandemic restrictions, mainly with respect to the relationship between subjective perceptions and/or experiences regarding COVID-19 and therapeutic alliance for both psychotherapists and patients. A sample of 94 Turkish participants which consisted of 62 psychotherapy patients and 32 mental health professionals filled out the questionnaire whilst semi-structured interviews were done with nine psychotherapists and ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 4 Görüntülenme
Erişime Açık

Online psychotherapy setting and Its reflections on Therapeutic relationshipduring Covid-19 pandemic

Özkan Ordulu, Nazlıcan

The purpose of this study was to explore how psychotherapy setting is affected by the mandatory conversion from face-to-face psychotherapy setting to online platforms due to COVID-19 pandemic restrictions, mainly with respect to the relationship between subjective perceptions and/or experiences regarding COVID-19 and therapeutic alliance for both psychotherapists and patients. A sample of 94 Turkish participants which consisted of 62 psychotherapy patients and 32 mental health professionals filled out the questionnaire whilst semi-structured interviews were done with nine psychotherapists and ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 5 Görüntülenme
Erişime Açık

A review on currency shocks and inflation volatility: Evidence from a DCC-GARCH model

Akça, Melike

In the present research, the relationship among the exchange rate and inflation in Turkey was investigated by considering the monthly dataset among 1990:1-2022:4 years. The consumer price index, producer price index, industrial production index, nominal exchange rate, and money supply are used as variables to represent inflation. Impulse-Response analyzes were used to find the short-term effects of the variables, decomposition of variance analysis for the causes of the changes in the variances of the variables, and the medium and long-term relationships of the variables in pairs were determine ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 11 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 5 Görüntülenme
Erişime Açık

Comparative analysis of virtual games with video games: preferences of players worldwide

Ahtaq, Salah Eddine

The emergence of virtual reality in recent years has primarily focused on user interfaces, visual simulation, and 3D graphics. However, the community's interest in virtual reality has shifted towards the gaming industry in order to reach a larger audience. This thesis aims to study the differences and similarities between virtual games and traditional video games in order to determine user preferences and opinions. Over 60 days (April 1st - May 31st, 2023), an online survey gathered 300 comprehensive responses, revealing substantial insights, and 4 interviews have been conducted with 4 volunte ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 8 Görüntülenme
Erişime Açık

A study of the best practices and procedures of risk mitigation techniques in elastic supply chain management in government sector in Jordan. “a case study on Arab Potash Company”

Abdulhameed, Zainab

Recently, managing risks in the supply chain has taken on great importance due to the vulnerability of the supply chain and the importance of mitigating any disruptions that can affect the business. In a world of highly changeable events, the number of upcoming risks is increasing, and managers' strategies to mitigate these risks should be studied and noted to help mitigate similar issues in the future. Risks in the supply chain tend to occur infrequently but can have significant consequences for a company. Supply chain management has been crippled by the coronavirus epidemic, affecting variou ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 14 Görüntülenme
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