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Now showing 1 - 10 of 5356
  • Article
    Citation - WoS: 27
    Citation - Scopus: 29
    ON α-ψ-GERAGHTY CONTRACTION TYPE MAPPINGS ON QUASI-BRANCIARI METRIC SPACES
    (Yokohama Publ, 2016) Karapinar, Erdal; Pitea, Ariana
    In this paper, we state and prove results regarding alpha-psi-Geraghty contractive mappings in the setting of quasi-Branciari metric spaces. We provide existence and uniqueness results for periodic and fixed points of such mappings.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 6
    Surgical Outcomes of Posterior Persistent Fetal Vasculature Syndrome: Cases With Tent-Shaped and Closed Funnel-Shaped Retinal Detachment
    (Springernature, 2023) Zeydanli, Ece Ozdemir; Ozdek, Sengul; Acar, Burak; Ozdemir, Huseyin Baran; Aktas, Zeynep; Gurelik, Gokhan; Atalay, Hatice Tuba; Ozdemir Zeydanli, Ece
    Background/objectives To determine the role of vitreoretinal surgery (VRS) for two different forms of posterior persistent fetal vasculature syndrome (PFVS); with tent-shaped tractional retinal detachment (TRD) and closed funnel-shaped TRD. Subjects/methods Retrospective, single surgeon, consecutive case series of 52 eyes of 44 patients with posterior PFVS who underwent VRS. Cases were divided into "tent-shaped TRD" and "funnel-shaped TRD" groups based on the preoperative TRD configuration. Associated anomalies, functional and anatomical outcomes were evaluated. The cosmetic appearance was defined as poor if there was phthisis bulbi, gross buphthalmos, or corneal opacification; acceptable if there was apparent leukocoria; and excellent if none were noted at the last follow-up. Results Thirty eyes of 29 patients presented with tent-shaped TRD; 70% of which obtained counting fingers or better vision and 90% showed significant reversal of tenting achieving retinal reattachment. The cosmetic appearance was excellent in 87%. Two eyes (7%) became phthisic. Twenty-two eyes of 15 patients presented with funnel-shaped TRD and leukocoria; 45% achieved LP vision and 70% of patients with bilateral pathology had LP in at least one eye. The cosmetic appearance was acceptable to excellent in 73%. Three eyes (14%) became phthisic, one (5%) of which required enucleation. The median follow-up time was 16 (6-71) months. Conclusions VRS often provides functional vision and anatomy in posterior PFVS with tent-shaped TRD morphology. In the funnel-shaped TRD morphology, where no treatment has historically been recommended, surgery may be considered with an aim of restoring light perception and globe preservation, particularly in bilateral cases.
  • Article
    Citation - Scopus: 48
    Identifying Phishing Attacks in Communication Networks Using Url Consistency Features
    (Inderscience Publishers, 2020) Azeez,N.A.; Salaudeen,B.B.; Misra,S.; Damasevicius,R.; Maskeliunas,R.
    Phishing is a fraudulent attempt by cybercriminals, where the target audience is addressed by a text message, phone call or e-mail, requesting classified and sensitive information after presenting himself/herself as a legitimate agent. Successful phishing attack may result into financial loss and identity theft. Identifying forensic characteristics of phishing attack can help to detect the attack and its perpetuators and as well as to enable defence against it. To shield internet users from phishing assaults, numerous anti-phishing models have been proposed. Currently employed techniques to handle these challenges are not sufficient and capable enough. We aim at identifying phishing sites in order to guard internet users from being vulnerable to any form of phishing attacks by verifying the conceptual and literal consistency between the uniform resource locator (URL) and the web content. The implementation of the proposed PhishDetect method achieves an accuracy of 99.1%; indicating that it is effective in detecting various forms of phishing attacks. © 2020 Inderscience Enterprises Ltd.. All rights reserved.
  • Article
    Citation - WoS: 14
    Citation - Scopus: 17
    A 30-Year Journey of Hospitality and Tourism Research: a Comprehensive Topic Modeling Analysis
    (Emerald Group Publishing Ltd, 2024) Kurt, Senol; Assefa, Feven Zewdie; Tuzlukaya, Sule Erdem; Karatepe, Osman M.
    PurposeThe purpose of this study is to provide an overview of the research conducted on hospitality and tourism articles published in Q1 category journals from 1990 to 2023. This study also aims to measure the topic prevalence in selected journals throughout the years, their change over time and similarities of journals.Design/methodology/approachLatent dirichlet allocation algorithm is used as a topic modeling method to identify and analyze topics in hospitality and tourism research over the past 30 years.FindingsThe results of the study indicate that hospitality and tourism research has recently focused on topics such as employee behavior, customer satisfaction, online reviews, medical tourism and tourist experience. However, the results also indicate a negative trend in topics such as hotel management, sustainability, profession, economic growth and tourist destination.Practical implicationsThis study can be used to examine the evolution of research patterns over time, find hot and cold themes and uncover untapped or understudied areas. This can aid academics in their investigations and practitioners in making sound strategic decisions.Originality/valueThis study contributes to the existing literature by providing a new approach and comprehensive analysis of hospitality and tourism research topics. It delineates an overview of the progression of hospitality and tourism research over the past 30 years, identifies the trending topics and explores the potential impacts that these identified topics may have on future studies.
  • Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Insights Into a New Paradigm in Translation Eco-Translation and Its Reflections
    (John Benjamins Publishing Co, 2020) Aksoy, Nuzhet Berrin
    The purpose of this paper is to draw attention to the reflection and recreation of the physical landscape in literary texts and in their translations; to explore in what ways nature is represented and, secondly, to discuss aspects of this process in the light of the translational norms proposed by Toury. The focus is the idea that language and culture, the core of literature, are to be transferred to other linguistic and cultural mediums during translation, and constitute the ecological environment of the text. This undertaking assigns to the translator the task of selecting, adapting and recreating this material in the foreign environment. An ecocritical approach will be adopted to explore how and how far this task is materialized by studying a Turkish author Yasar Kemal's novel Ortadirek translated as The Wind from the Plain. Yasar Kemal is regarded as the most ecologically-minded author of Turkish literature and his novels portray nature as the mental landscapes of man, a force under which the constituents of the text are recreated at every linguistic and culture-bound effort of the author. Hence, the main endeavour of this study will be to bring to the surface, with an eco-critical approach, the translational preferences of the translator of Ortadirek and their significance in the recreation of Kemal's ecological vision in the translation.
  • Article
    Citation - WoS: 31
    Citation - Scopus: 52
    Neural Network and Classification Approach in Identifying Customer Behavior in the Banking Sector: a Case Study of an International Bank
    (Wiley, 2015) Ogwueleka, Francisca Nonyelum; Misra, Sanjay; Colomo-Palacios, Ricardo; Fernandez, Luis
    The customer relationship focus for banks is in development of main competencies and strategies of building strong profitable customer relationships through considering and managing the customer impression, influence on the culture of the bank, satisfactory treatment, and assessment of valued relationship building. Artificial neural networks (ANNs) are used after data segmentation and classification, where the designed model register records into two class sets, that is, the training and testing sets. ANN predicts new customer behavior from previously observed customer behavior after executing the process of learning from existing data. This article proposes an ANN model, which is developed using a six-step procedure. The back-propagation algorithm is used to train the ANN by adjusting its weights to minimize the difference between the current ANN output and the desired output. An evaluation process is conducted to determine whether the ANN has learned how to perform. The training process is halted periodically, and its performance is tested until an acceptable result is obtained. The principles underlying detection software are grounded in classical statistical decision theory.
  • Article
    Populizme Bir Bakış Açısı: Birden Fazla Populizm Yerine Birçok Strateji
    (2021) Yılmaz, Gözde
    Son yıllarda uluslararası siyasette oldukça baskın bir yer edinmiş popülizm Brexit veya 2016 Amerikan seçimleri gibi tartışmalı olaylarla daha da öne çıkmıştır. Bu fenomeni inceleyen bir çok çalışma yapılmasına rağmen, popülizm üzerine literatür gittikçe dağınık bir hal almıştır ki bunun nedeni de analize başlamak için gereken kavramsal çerçevenin olmaması ve bunun yanı sıra literatürdeki farklı popülizm çeşitleri üretme eğilimidir. Bu durumdan hareketle bu makale alanda geçerli olabilecek bir kavramsal çerçeve oluşturmayı hedeflemektedir. Makale her vaka için farklı bir popülizm kavramsallaştırılmasının yerine, kavramın ana özellikleri ve popülist siyasetçilerin kullanımında olan stratejilerinin ayrımının yapılması gerektiğini ileri sürmektedir.
  • Article
    Citation - WoS: 55
    Citation - Scopus: 61
    Encoding the Future: Successful Processing of Intentions Engages Predictive Brain Networks
    (Academic Press inc Elsevier Science, 2010) Poppenk, J.; Moscovitch, M.; McIntosh, A. R.; Ozcelik, E.; Craik, F. I. M.
    Evidence from cognitive, patient and neuroimaging research indicates that "remembering to remember" intentions, i.e., prospective memory (PM) retrieval, requires both general memory systems involving the medial temporal lobes and an executive system involving rostral PFC (BA 10). However, it is not known how prospective memories are initially formed. Using fMRI, we investigated whether brain activity during encoding Of future intentions and present actions differentially predicted later memory for those same intentions (PM) and actions (retrospective memory). We identified two significant patterns of neural activity: a network linked to overall memory and another linked specifically to PM. While overall memory success was predicted by temporal lobe activations that included the hippocampus, PM success was also uniquely predicted by activations in additional regions, including left rostrolateral PFC and the right parahippocampal gyrus. This finding extends the role of these structures to the formation of individual intentions. It also provides the first evidence that PM encoding, like PM retrieval, is supported by both a common episodic memory network and an executive network specifically recruited by future-oriented processing. (C) 2009 Elsevier Inc. All rights reserved.
  • Article
    Citation - WoS: 5
    Citation - Scopus: 4
    Insomnia Severity Predicts Psychiatric Symptoms: a Cross-Sectional Study Investigating the Partial Mediations of Worry and Rumination
    (Routledge Journals, Taylor & Francis Ltd, 2024) Turkarslan, Kutlu Kagan; Cinarbas, Deniz Canel; Canel Çınarbaş, Deniz
    Objective: Insomnia as a disorder on its own or as a symptom of other mental disorders can lead to significant distress and lower quality of life. By exacerbating negative affect and emotion dysregulation, poor sleep and insomnia can contribute to the initiation and maintenance of mental disorders. The aim of this cross-sectional study was to investigate the relationship between insomnia severity and overall psychiatric symptoms (anxiety, depression, obsessive-compulsive symptoms, somatization, phobic anxiety, hostility, interpersonal sensitivity, paranoid ideation, and psychoticism), and the mediational roles of worry and rumination in this relationship. Method: The data was collected from a community sample of 1444 participants (females 69.39%, M-age=27.95, SD=9.37) who completed self-report measures of insomnia severity, worry, rumination, and psychiatric symptoms. The mediational roles of worry and rumination were tested with mediation analysis using the PROCESS Macro. Results: It was found that insomnia severity (beta=0.20, p<.001) significantly predicted psychiatric symptoms directly and via worry and rumination (beta=0.33, p<.001), meaning that worry and rumination partially mediated the relationship between insomnia severity and psychiatric symptoms. The findings were similar after controlling for smoking status, daily screen time, coffee consumption in the evening, weekly exercise frequency, and pre-sleep screen time. Conclusions: Interventions targeting the reduction of insomnia severity and maladaptive emotion regulation strategies (e.g., worry and rumination), as well as the enhancement of adaptive emotion regulation strategies (e.g., positive refocusing and mindfulness), may alleviate the adverse effects of insomnia on psychiatric symptoms.
  • Article
    Çin’in Uluslararası Kimlik Trilemması: Gelişmekte Olan Ülke, Bölgesel Güç Ya Da Büyük Güç?
    (2019) Yıldırım, Nilgün Eliküçük
    Çin dış politikasında sabit bir ülke kimliğinden ziyade aynı anda farklı birçok kimlik benimsemektedir. Çin Üçüncü Dünya ile ilişkilerinde hala gelişmekte olan ülke kimliğini kullanırken, periferisinde bölgesel güç rolünü oynamaktadır. Uluslararası alanda ise büyük güçlere atfedilen uluslararası sorumluluk prensibini üstlenmektedir. Bu bağlamda Çin’in gelişmekte olan ülke mi, bölgesel güç mü ya da küresel anlamda büyük güç mü olduğu konusunda kesinlik yoktur. Çin’in dış politikada birden çok kimliğe aynı anda bürünmesi, uluslararası ilişkiler akademisi tarafından tartışılan küresel kimliklerin bir ya da birkaçının benimsenmesi sonucudur. Uluslararası kimlik tartışmalarının odak noktası ise düşük profil stratejisinin temel taşlarından biri olan “juebu dangtou” yani asla “lider olma/liderlik yapma” prensibidir. Bu çalışma da, Çin akademisindeki uluslararası kimlik tartışmalarını, gelişmekte olan ülke, bölgesel güç ve büyük güç kimliği olarak üç kategoride ele alacağım. Çalışmanın temel önermesi, Xi Jinping’in “başarı için mücadele” stratejisinin şekillenmesinde akademideki kimlik tartışmalarının etkili olduğudur. Ayrıca bu tartışmalar Çin’in hangi siyasi coğrafya üzerinden etki alanı yaratmak isteyeceğini gözlemlemek için de oldukça yararlıdır.