TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/4
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Article Investigation of Glass Ceiling Syndrome Among Radiation Professionals: a Comparative Analysis(Dokuz Eylul Univ inst Health Sciences, 2025-05-31) Şişman, Gizem; Çilengiroğlu, Özgül Vupa; Alkan, TurkanBackground and Purpose: This study investigates the perception of the glass ceiling syndrome among radiology, nuclear medicine, and radiation oncology technicians in healthcare institutions in Turkey. Methods: A comparative approach was used to examine the prevalence and impact of the glass ceiling on female workers. Data was collected via questionnaires from 311 participants in Turkey, and analyzed using descriptive statistics, chi-square analysis, and independent sample tests. Results: The results indicate that 78.1% of the participants were women, 64% were medical imaging technicians and 65.3% were employed in private institutions. A significant difference was found in the total and subscale scores of the glass ceiling scale (excluding mentoring) based on gender (p<0.05). Conclusion: This study enhances understanding of gender dynamics among radiation workers and highlights the need for targeted interventions to address the glass ceiling syndrome. The findings provide key insights for promoting workforce equity and organizational development in healthcare institutions.Article Kısmi Gözlemlenebilir Çok Bileşenli Sistemler için Bakım Politikalarının Pekiştirmeli Derin Öğrenme Yöntemleri ile Belirlenmesi(Pamukkale Univ, 2025) Karabağ, OktayBu çalışmada, kısmi gözlemlenebilir çok bileşenli sistemler için bakım/onarım kararları incelenmiştir. Bu tip sistemler genellikle servis sağlayıcının uzakta olduğu koşullarda işletilmekte ve bileşenlerin aşınma seviyeleri genellikle sensörler yardımı ile tam olarak izlenememektedir. Rüzgâr türbinleri, bu tarz sistemlere birebir uyan bir örnek oluşturmaktadır. İlgili sistemlerde, servis sağlayıcı ne zaman bakım/onarım yapacağına, bakım kararı ile birlikte hangi parçaları bakım noktasına sevk edeceğine ve bakım noktasındaki incelemesinin ardından hangi sistem bileşenlerinin değiştirilmesi gerektiğine karar vermektedir. Çalışmamızda, bahsi geçen bu komplike karar problemi kısmi gözlemlenebilir Markov karar süreci olarak modellenmiş ve ilgili nümerik çözümler aktör kritik pekiştirmeli öğrenme yöntemi kullanılarak elde edilmiştir. Yaptığımız nümerik çalışmalar, pekiştirmeli öğrenme algoritması ile elde edilen çözümlerin pratikte ve literatürde yaygın olarak kullanılan sezgisel bakım/onarım politikalarına kıyasla daha iyi sonuçlar verdiğini göstermiştir. Bazı durumlarda, bu çözümlerin ortalamada %10-%15 düzeyinde bir iyileştirme sağladığı gözlemlenmiştir. Ayrıca, düzeltici bakım maliyeti, acil sipariş maliyeti ve fazla yedek parçayı geri döndürme maliyeti arttıkça, pekiştirmeli öğrenme algoritması ile elde edilen çözümlerin diğer sezgisel politikalara kıyasla daha fazla avantaj sağladığı da belirlenmiştir.Conference Object Clinical Management Strategies of Cardiologists in Heart Failure With Reduced Ejection Fraction(Wiley, 2024) Kocabas, U. Umut; Ozcalik, E.; Kivrak, T.; Altin, C.; Turk, U. O.[No abstract available]Article Kovid-19 Kaynaklı Endişenin Yaygın Anksiyete Bozukluğuna Etkisinde Bilinçli Farkındalık, Bilişsel Kontrol ve Bilişsel Esneklik Değişkenlerinin Aracı Rolü(Association for Clinical Psychology Research, 2024-04-25) Meral Öğütçü, Yasemin; Yakın, İ.; Çarboğa, G.; Bayram, Ö.E.; Meral, YaseminThe outbreak of COVID-19 presents a threat to human psychology and shows an increase in anxiety. With the uncertainty during the pandemic, individuals are concerned about different areas in their life such as health or economy. Thus, an increase in Generalized Anxiety Disorder (GAD) symptoms is expected. The present study aimed to investigate the association between COVID-19 concerns and GAD-symptoms, and the mediating roles of Mindfulness, Cognitive Control (CC), and Cognitive Flexibility (CF) in this relationship. 458 individuals aged between 18-75 (78.4% female, 21.6% male) participated in the present study. Data was collected online using self-reported questionnaires measuring concerns related to COVID-19, GAD-symptoms, Mindfulness, CC, and CF. The results of the present study showed that GAD-symptoms were significantly predicted by coronavirus concerns. The more worries about the pandemic outcome, the higher GAD-symptoms were reported. Moreover, this association was mediated by Mindfulness and CC. Mindful individuals and those with higher CC showed fewer GAD-symptoms. Even though CF has been found as decreasing anxiety symptoms, it did not affect coronavirus concerns. Regarding GAD, individuals’ worries are not unrealistic, but mostly not linked to real threat. During the pandemic on the other hand, worries are related to real danger. Thus, beliefs about the pandemic might not be maladaptive. Instead of changing these beliefs, having the ability to direct attention purposefully through CC might be more functional. Furthermore, accepting their experiences in a non-judgmental way might be adaptive. These results highlight that individuals with GAD-symp-toms might benefit from interventions based on Mindfulness and CC during the pandemic. © 2024 Association of Clinical Psychology Research. All rights reserved.Review Exploring the Factors Affecting Shared Biking Perception: Insights From Türkiye(Ege univ, fac economics & admin sciences, 2024-04-08) Oflaç, Bengü; Özcan, Seda; Sevil Oflac, BenguUnderstanding consumer perception regarding shared biking services requires the analysis of psychological factors underlying the late diffusion of shared biking services. In this regard, by scrutinizing these underlying factors, we aim to uncover insights that can inform the development of targeted business strategies that better align with users' preferences and needs, thereby overcoming barriers to adoption and facilitating the wider dissemination of shared biking systems. Findings show that as consumers perceive shared biking services as useful and hedonic, their attitudes become more favorable. Importantly, highlighting the mediating role of compatibility, this study emphasizes the congruence among shared biking services, consumers' lifestyles, and their traveling habits. Findings also suggest that perceived complexity has a negative impact on shared biking attitudes. Interestingly, no significant relationship was found between perceived risk and shared biking attitude. The findings provide further support for innovation diffusion and theory of reasoned action. The suggested theoretical framework integrates variables related to both barriers and drivers, thus guiding future studies on the sharing economy. The study also provides insights that contribute to the development of service design and marketing strategies that respond better to users' needs, and also, facilitate the spread of these mobility systems.Article Citation - WoS: 1Non-Suicidal Self-Injury Among Turkish Young Adults: an Investigation of Intrapersonal Factors(Istanbul univ, fac letters, dept psychology, 2024-04-05) Tuna, Ezgi; Gençöz, TulinNonsuicidal self-injury (NSSI) includes the actions of individuals that inflict intentional harm to bodily tissues without intent of ending one's life. NSSI is especially frequent among young individuals and may predict future suicidal acts. Although scholarly attention on NSSI has increased, it remains a poorly understood and complex condition. Furthermore, NSSI among nonwestern populations is under-examined. According to the benefits and barriers model (BBM; Hooley & Franklin, 2018) of NSSI, benefits, such as self-punishment and affect improvement, play a role in the initiation of NSSI, while barriers, such as pain and a positive view of the self, play a role in its prevention. The current study uses the framework based on the BBM and explores the relative association between several psychological factors (i.e., emotion dysregulation, negative and positive affect [NA and PA, respectively], thought suppression, self-criticism, and self-compassion) and NSSI. The participants were 353 Turkish young adults (NSSI group: n = 158; no-NSSI group: n = 195) who completed online questionnaires. The results indicated that NSSI was common and repetitive in the sample. The most prevalent NSSI behavior was impeding wound healing. Among the study variables, high levels of nonacceptance of emotional reaction and self-criticism and decreased levels of self-compassion were related to NSSI. PA, NA, thought suppression, and the remaining five dimensions of emotion regulation problems were nonsignificantly linked to NSSI when considering all factors. The results indicate that NSSI is a complex phenomenon associated with various psychological factors, which may require prevention and intervention programs that target multiple aspects. Based on these findings, improving emotion regulation and self-compassion and decreasing self-criticism may be intervention targets for this population.Article Citation - WoS: 2Citation - Scopus: 2A New Scoring System for the Evaluation of Ibrutinib-Associated Arrhythmias in Chronic Lymphocytic Leukemia: the ACEF Score(Turkish Society of Hematology, 2024-05-30) Ugur, Mehmet Can; Bilgir, Oktay; Dogdus, Mustafa; Koyuncu, İlhan; Senoz, Oktay; Koyun, Emin; Koyuncu, BetulAmaç: Kardiyak dokuda Bruton tirozin kinaz inhibisyonu, stres sırasında dokunun korunmasından sorumlu olan PI3K-AKT sinyal yolunun inhibisyonuna neden olur. Bu nedenle aritmi riskinde bir artış vardır. Bu çalışma, yaş, kreatinin ve ejeksiyon fraksiyonu komponentlerini temel alan ve basit bir puanlama sistemi olan Yaş-Kreatinin-Ejeksiyon Fraksiyonu (ACEF) skoru ile bu riskin tahmin edilebilmesini araştırmaktadır. Gereç ve Yöntemler: Kronik lenfositik lösemi (KLL) tanısı alan ve en az 1 yıldır ibrutinib tedavisi alan hastalar ekokardiyografi ve Holter elektrokardiyografi ile değerlendirildi ve sonuçlar tedavi almayan KLL hastalarından oluşan kontrol grubuyla karşılaştırıldı. ACEF skoru, yaş/sol ventriküler ejeksiyon fraksiyonu+1 (kreatinin >2,0 mg/dL ise) formülüyle hesaplandı. Bulgular: Hastaların aritmi gelişimi değerlendirildiğinde paroksismal atriyal fibrilasyon (PAF) dışındaki aritmi türleri açısından kontrol ve ibrutinib grupları arasında istatistiksel olarak anlamlı bir fark bulunmadı. PAF, ibrutinib kullanmayanlar ile kullananlar arasında %8’e karşı %22 (p=0,042) oranında meydana gelmekteydi. İbrutinib kullanan hastalarda ACEF skorunun >1,21 olması, PAF gelişimini %77 duyarlılık ve %75 özgüllükle öngörmekteydi (eğri altındaki alan: 0,830, %95 güven aralığı: 0,698-0,962, p<0,001). Sonuç: ACEF skoru, KLL tanısı alan ve ibrutinib başlanması planlanan hastalarda PAF gelişimini öngören bir risk skoru olarak kullanılabilir.Correction Exploring the Association Between Calling and Work Engagement: the Mediating Role of Psychological Needs Satisfaction and Perception of Meaningful Work (vol 43, Pg 345, 2023)(Istanbul univ, fac letters, dept psychology, 2024-01-11) Cem Ersoy, Nevra; Peker, Mehmet; Giray, Muazzez Deniz; Ersoy, Nevra Cem[No abstract available]Article When Are You Going To Marry? Intention To Marry Through the Lens of Theory of Planned Behavior and Self-Regulatory Focus(Turkish Psychological Counseling and Guidance Association, 2024-03-29) Koçak, Aylin; Mouratidis, A.What makes people to take important decisions in their lives, such as marriage? To answer this question, we relied on theory of planned behavior to examine the degree to which peoples' attitudes, subjective-norms, and behavioral control perceptions predict their intentions to marry. Furthermore, we used self-regulatory focus theory to examine whether such attitudes, norms, and perceptions could be partly explained by peoples' focus on pursuing-gains versus securing non-losses. We conducted a cross-sectional, web-based survey with a sample of 699 Turkish young adults (70.7% females; Mage =24.89 years, SD = 4.31). The results of the structural equation modeling showed that promotion-focus positively and prevention-focus negatively related to perceived behavioral control, which in turn negatively related to intentions to marry. Intentions also related positively to attitudes but not to subjective-norms, which however related positively to promotion-focus and negatively to prevention-focus. Gender and age differences were also found. The results are discussed in light of the two theories. © 2024 The Authors. Turkish Journal of Counseling Psychology and Guidance is published by Turkish Psychological Counselling and Guidance Association.Article Citation - WoS: 5Citation - Scopus: 7Detection of Olfactory Stimulus in Electroencephalogram Signals Using Machine and Deep Learning Methods(Istanbul University, 2024-01-30) Akbuğday, Burak; Akbugday, S.P.; Sadikzade, R.; Akan, A.; Unal, S.; Sadighzadeh, RezaThe investigation of olfactory stimuli has become more prominent in the context of neuromarketing research over the last couple of years. Although a few studies suggest that olfactory stimuli are linked with consumer behavior and can be observed in various ways, such as via electroencephalogram (EEG), a universal method for the detection of olfactory stimuli has not been established yet. In this study, 14-channel EEG signals acquired from participants while they were presented with 2 identical boxes, scented and unscented, were processed to extract several linear and nonlinear features. Two approaches are presented for the classification of scented and unscented cases: i) using machine learning (ML) methods utilizing extracted features; ii) using deep learning (DL) methods utilizing relative sub-band power topographic heat map images. Experimental results suggest that the olfactory stimulus can be successfully detected with up to 92% accuracy by the proposed method. Furthermore, it is shown that topographic heat maps can accurately depict the response of the brain to olfactory stimuli. © 2024 Istanbul University. All rights reserved.