Atılım Academic Archive (Atılım University)
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The Predictive Effect of "Real Amylase Value": A More Accurate Predictor for Postoperative Pancreatic Fistula
No full textBackgroundPostoperative pancreatic fistula (POPF) is a common and serious complication following pancreatic surgery. While several studies have attempted to predict the development of POPF using drain amylase concentration, predictive values vary widely due to factors like abdominal irrigation and chylous drainage, which can dilute the amylase levels. This study aims to evaluate whether the "Real Amylase Value" (RAV), calculated as the product of drain amylase concentration and drainage volume, provides a more reliable prediction of POPF compared to conventional amylase concentration. Better prediction of pancreatic fistula development could lead to closer clinical monitoring of these patients, reassessment of hospital stay duration, and more careful management of drains over an extended period. Additionally, carefully managing the timing of drain removal may improve patient recovery and discharge process.MethodologyData from 198 patients who underwent pancreaticoduodenectomy (PD) and distal pancreatectomy (DP) were retrospectively analyzed. Drain amylase concentrations and drainage volumes were measured on postoperative days (POD) 1 and 3, and the RAV (U) was calculated. Real Amylase Value (RAV) (U) was calculated using the formula: RAV (U) = Drain Amylase Concentration (U/L) x Drainage Amount (L). Predictive values for POPF were evaluated using receiver operating characteristic (ROC) curve analysis, comparing conventional amylase concentration (U/L) and RAV (U).ResultsOn POD1, the RAV (U) demonstrated greater predictive value for POPF compared to the conventional drain amylase concentration (U/L) with an area under the ROC curve (AUROC) of 0.85 versus 0.79, respectively. Similarly, on POD3, RAV showed superior predictive accuracy (AUROC 0.89) compared to amylase concentration (AUROC 0.79).ConclusionThe RAV (U) offers a more accurate and reliable prediction of POPF than traditional drain amylase concentration (U/L), with improved sensitivity and specificity. This method could refine clinical management, particularly in the timing of drain removal and early intervention strategies for patients at high risk of developing pancreatic fistulas.Science Citation Index Expande
Several Outcomes of Fixed-Point Theory in Interpolative Metric Spaces
No full textThis paper aims to generalize and improve the recent fixed-point theorems in the setting of interpolative metric spaces. More precisely, we investigate the existence and uniqueness of the fixed-point for certain operators of the Ciric-Reich-Rus-type, via admissible mapping in the context of interpolative metric spaces.Atilim University research program [ATU-LAP-2425-15]This project has received funding from the Atilim University research program under grant agreement No: ATU-LAP-2425-15
A Systematic Review of Social Robots in Shopping Environments
No full textSocial robots, driven by cutting-edge technologies are designed to cater to various societal needs, facilitating complex human interactions involving multiple users and stakeholders. Their integration into daily life is anticipated to increase significantly. Within this context, the domain of shopping robots, which play a crucial role in enhancing and diversifying shopping experiences where human interaction is paramount, holds immense potential for development. This article aims to provide an overview of the current landscape of shopping robots and explore future research directions in this evolving field. Through this systematic review, key trends and insights in the field of shopping robots are identified, while also offering a categorization in the form of a 3D conceptual scheme, called the Public Space Robot (PSR) framework. The outcomes reveal significant developments over the past two decades (2002–2024), with the main concentration on developing and deploying mobile robots that offer functional or autonomous interaction for navigation assistance and customer service in shopping malls and retail stores. © 2024 Taylor & Francis Group, LLC
The Proprioceptive Puzzle: an Observational Study Investigating the Effects of Cervical Proprioceptive Errors on Quantitative Sensory Testing and Body Awareness in Young Individuals
No full textAcet, Nagihan/0000-0002-3221-528XObjective: The present study investigates the effects of cervical proprioceptive errors (CPE) on body awareness and quantitative sensory testing (QST), including the pressure pain threshold, temporal summation, and conditioned pain modulation in young individuals. Materials and methods: Included in this prospective cross-sectional study were 78 participants who were divided into two groups based on the presence or absence of CPE. The study was registered on ClinicalTrials.gov with the clinical trial number [NCT06559397]. Cervical proprioception was measured using the "head position error test", body awareness was assessed using the "Body Awareness Questionnaire", QST was assessed using a mechanical pressure algometer, and conditioned pain modulation was evaluated using cold stimulus. Results: The study revealed a significant reduction in body awareness among those with CPE (p 0.05). Conclusions: CPE can have a significant impact on body awareness, leading to a decrease in the ability to perceive one's own body. While the present study offers no significant findings related to QST, it provides new insights into the relationship between proprioception, body awareness, and pain processing mechanisms. Clinically, the results suggest the importance of integrating interventions aimed at enhancing body awareness into the treatment protocols of patients with CPE.Science Citation Index Expande
The Role of Chatbots in Enhancing Customer Experience in Firstbank, Lagos, Nigeria
Full text linkBu çalışma, First Bank Lagos'un sohbet robotu Fibani'nin Müşteri Deneyimi üzerindeki etkisini Teknoloji Kabul Modeli (TAM) kullanarak incelemektedir. Analiz edilen temel faktörler arasında Algılanan Kullanışlılık (PU), Algılanan Kullanım Kolaylığı (PEOU), Chatbot Güveni (CT), Müşteri Memnuniyeti (CS) ve Kullanım Niyeti yer alır. 400 müşteri ile yapılan bir anket, 5'li Likert ölçeğinde derecelendirilen 30 maddelik bir anket kullanılarak gerçekleştirilmiştir. SPSS'de (Versiyon 26) veri analizinde tanımlayıcı istatistikler, korelasyon ve regresyon kullanılmıştır. Sonuçlar, PU, PEOU ve BT'nin CS'yi önemli ölçüde etkilediğini (r = 0.75, p < .01) ve BT'nin (β = 0.35, p < .001) en güçlü öngörücü olduğunu göstermektedir. Bulgular, Fibani'nin müşteri deneyimini geliştirdiğini ancak doğruluk, güvenlik ve kişiselleştirme konularında iyileştirmelere ihtiyaç duyduğunu gösteriyor. Anahtar Kelimeler: Chatbot benimseme, müşteri deneyimi, dijital bankacılık, Teknoloji Kabul Modeli (TAM), chatbot güveni, müşteri memnuniyeti, First Bank Lagos.This study examines the impact of Fibani, First Bank Lagos' chatbot, on customer experience using the Technology Acceptance Model (TAM). Key factors analyzed include Perceived Usefulness (PU), Perceived Ease of Use (PEOU), Chatbot Trust (CT), Customer Satisfaction (CS), and Intention to Use. A survey of 400 customers was conducted using a 30- item questionnaire rated on a 5-point Likert scale. Data analysis in SPSS (Version 26) employed descriptive statistics, correlation, and regression. Results show that PU, PEOU, and CT significantly influence CS (r = 0.75, p < .01), with CT (β = 0.35, p < .001) as the strongest predictor. Findings suggest Fibani enhances customer experience but needs improvements in accuracy, security, and personalization. Keywords: Chatbot adoption, customer experience, digital banking, Technology Acceptance Model (TAM), chatbot trust, customer satisfaction, First Bank Lagos
The Effect of Two Different Types of Daily Disposable Monofocal Contact Lenses on Ocular Wavefront Aberrations
No full textBackground: To compare the effect of two daily disposable soft contact lenses on ocular wavefront aberrations. Methods: This study included 34 eyes from 17 patients aged 18 to 40 years (mean age: 27.12±8.3 years) with identical myopic refractive errors in both eyes without astigmatism and requesting contact lens use. Initially, wavefront aberrations; total, tilt, high, total coma, total trefoil, total 4.foil, sphere, high astigmatism, RMS (3 mm/5 mm) were measured using Nidek OPD Scan II aberrometer/topograph in both eyes without contact lenses. Acuvue Oasys with HydraLuxe 1-Day (senofilcon A) daily disposable contact lenses were applied to the right eye, while Precision 1 (verofilcon A) daily disposable contact lenses were applied to the left eye based on refractive errors. Wavefront aberration measurements were repeated 60 min later with contact lenses, and aberrations were compared to baseline and fellow eyes' measurements. The magnitudes of aberration changes after contact lens application were analyzed. Results: Both types of daily disposable contact lenses reduced total wavefront aberrations. Acuvue Oasys with HydraLuxe 1-Day contact lenses showed a significant increase in total trefoil aberration (p = 0.048). Precision 1 contact lenses showed a significant increase (p = 0.034) only in total tilt aberrations compared to baseline. No significant differences were found between the lenses regarding changes in all wavefront aberrations. Conclusion: Both daily disposable lenses effectively reduced total wavefront aberrations, though they increased certain subtypes of high-order aberrations in young adult myopes. © 2025 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC license. http://creativecommons.org/licenses/by-nc/4.0
The Effect of Perceived Birth Trauma in Women With Planned Cesarean Section on Maternal and Paternal Attachment: Path Analysis Model
No full textPerceived birth trauma can disrupt parent-infant bonding and affect family dynamics. This study examined the impact of perceived birth trauma on maternal and paternal attachment using path analysis. An analytical cross-sectional study was conducted with 134 mother-father pairs in Turkey, 6 months postpartum, following planned cesarean sections. Data were collected using the Traumatic Childbirth Perception Scale, Mother-to-Infant Bonding Scale, and Paternal-Infant Attachment Scale. Descriptive statistics and reliability analyses were conducted using R software. Path analysis was performed with the R package “lavaan” to assess direct and indirect relationships. Higher perceived birth trauma was significantly associated with increased maternal bonding difficulties and decreased paternal bonding. A significant negative covariance between maternal and paternal bonding scores indicated interdependent bonding dynamics. The model explained 6% of the variance in maternal bonding and 3.7% in paternal bonding. These findings underscore the need for family-centered, trauma-informed postpartum care to support healthy parent-infant attachment. © The Author(s) 2025. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage)
The Role of Over-Commitment to Social Networks and Bottom-Line Mentality in Driving Unethical Pro-Organizational Behavior
No full textBu araştırma, sosyal ağlara aşırı bağlılık ve alt çizgi zihniyetinin (BLM) etik dışı örgüt yanlısı davranışları (UPB) nasıl tetiklediğini incelemektedir. UPB, örgüte fayda sağlamak amacıyla yapılsa da, çoğu zaman etik standartları ihlal eder. Bu çalışma, performans baskısı ve örgütsel sadakat gibi davranışı teşvik eden içsel ve dışsal faktörleri incelemektedir. Sosyal değişim teorisi, ahlaki ayrışma, bilişsel uyumsuzluk ve nötralizasyon teorilerine dayanan bu araştırma, çalışanların etik dışı eylemleri nasıl meşrulaştırdıklarını ve sonrasında hangi duygusal sonuçlarla karşılaştıklarını ortaya çıkarmayı amaçlamaktadır. Nitel bir yaklaşım kullanılmakta olup, veriler farklı sektörlerden ve kültürel geçmişlerden 10-15 profesyonel ile yarı yapılandırılmış görüşmeler yoluyla toplanmıştır. Bulgular, ahlaki muhakeme, meşrulaştırma teknikleri ve suçluluk veya ayrışma gibi duygusal tepkilerdeki desenleri ortaya çıkarması beklenmektedir. Bu çalışma, UPB'yi açıklamak için birden fazla psikolojik teoriyi birleştirerek literatüre katkı sağlamakta ve etik liderlik ile insan kaynakları uygulamaları için pratik çıkarımlar sunmaktadır.This research explores how over-commitment to social networks and bottom-line mentality (BLM) contribute to unethical pro-organizational behavior (UPB). While UPB is intended to benefit the organization, it often violates ethical standards. This study examines the internal and external factors that encourage such behavior, including performance pressure and organizational loyalty. Grounded in social exchange theory, moral disengagement, cognitive dissonance, and neutralization theory, the research aims to uncover how employees justify unethical actions and what emotional consequences they experience afterward. A qualitative approach is used, with data collected through semi-structured interviews with 10–15 professionals from diverse industries and cultural backgrounds. The findings are expected to reveal patterns of moral reasoning, justification techniques, and emotional responses such as guilt or disengagement. This study contributes to the literature by integrating multiple psychological theories to explain UPB and offering practical implications for ethical leadership and human resource practices
Evaluating Space Efficiency Practices in Tehran's High-Rise Buildings: A Structural and Architectural Perspective
No full textSpatial efficiency in Tehran's high-rise building design is shaped by a complex blend of multiple factors such as architectural and structural considerations. Tehran's innovative and flexible strategies have allowed the city to address the complexities of high-rise design considerations, resulting in the creation of some of the most progressive and sustainable tall buildings in the Middle East. However, detailed studies on space utilization in Tehran's tall towers remain scarce. This article addresses this gap by analyzing 48 case study towers, revealing key trends such as the dominance of residential functions, central core designs, prismatic forms, and the frequent use of steel rigid frame systems. The analysis revealed an average spatial efficiency of 91% in Tehran's towers, with a core-to-GFA (gross floor area) ratio of only 6%, exceeding typical efficiency ratios observed in other regions, though shaped by Tehran's specific urban and economic context. These findings promote sustainability and provide crucial insights for construction professionals, supporting the informed decision-making process for tall building projects in Tehran and other densely urbanized areas.Tampereen yliopisto ja Tampereen ammattikorkeakoulu, as part of the Wiley - FinELib agreementWe extend our sincere gratitude to Dr. Seyyed Mohammadmahdi Hosseinikia, Mrs. Shaghayegh Rezaei, and Mr. Mohyedin Navabzadeh Navabi for their support in supplying a portion of the building drawings used as raw data. Also, we thank the reviewers for their useful comments. Open access publishing facilitated by Tampereen yliopisto ja Tampereen ammattikorkeakoulu, as part of the Wiley - FinELib agreement
The Effect of a Single Session Rubber Hand Illusion on Pressure Pain Is Not Long-Lasting
No full textBackground: Rubber hand illusion (RHI) is an experience that causes changes in body perception and awareness as a result of the integration of simultaneous perceived visual and tactile stimuli. After synchronous brush strokes with rubber and real hands, the person perceives the rubber hand as their own. RHI is known to alter pain perception. In this study, it was aimed to evaluate the effects of RHI on pressure pain threshold and continuity of this effect. Methods: Twenty-three volunteers who developed RHI were included in our study and two conditions, illusion (synchronous) and control (asynchronous), were applied. The illusion condition was created by synchronous brush strokes, while the control condition was created by asynchronous brush application using different frequency and different finger areas in the same individuals. In both conditions, pressure pain threshold measurements with an algometer were performed at four times: baseline/1st measurement, during the brush stroke/2nd measurement, at the end of the brush stroke/3rd measurement and after the hand was removed from the environment/4th measurement. Results: It was shown that RHI increased the pressure-pain threshold (p = 0.004) in healthy volunteers. Asynchronous brush strokes arranged as a control trial significantly decreased the pressure pain threshold (p = 0.002). Conclusions: It was found that the threshold values that change during the brush strokes return to the initial state after the brush strokes are terminated and the rubber hand is removed from the environment so that the effect of the illusion does not last for a long time with a single session application. © 2025 European Pain Federation - EFIC ®.Science Citation Index Expande