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  • Article
    Citation - Scopus: 0
    Reflection of 20th-Century Techno-Utopias To the Present Day: Capsule Hotels
    (Nilay Ozsavas Ulucay, 2025) Köse, M.; Memikoğlu, İ.
    Several factors, such as population growth, increasing land prices, and challenging economic conditions, have led to a change in hotel design. In response to these challenges, capsule hotels have emerged as a potential solution. These hotels are designed to be compact, cost-effective, and conveniently located near airports or train stations. Inspired by the 20th-century techno-utopias and first emerging in Japan during the 1970s, these capsule hotels have spread to many countries in the 21st-century. The aim of this study is to identify the common and distinctive features of capsule hotels in different countries. Three capsule hotel examples were selected, namely the Nine Hours Capsule Hotel in Osaka, the KINN Capsule Hotel in Singapore, and the Capsule Hotel-Sydney in Sydney. The study used a mixed qualitative research method, including conceptual analysis and case study, and the selected hotel examples were analyzed using the homogeneous sampling technique. The design of these hotels, characterized by economic efficiency and limited facilities, shows variations across different countries in terms of capsule dimensions, color schemes, materials, and furnishings. The findings reveal discrepancies in location, color schemes, material choices, and amenities; however, the size, configuration, and access orientations of the capsules remain consistent with the established capsule hotel concept as defined in the literature. © 2025, Nilay OZSAVAS ULUCAY. All rights reserved.
  • Article
    Citation - Scopus: 0
    On Quasi-Weibull Distribution
    (University of Miskolc, 2025) Ostrovska, S.; Turan, M.
    Exponential distribution together with a variety of its transformations is permanently used both in probability theory and related fields. The most popular one is the power transformation yielding the Weibull distribution. In this paper, the power distribution of exponential random variable is supplemented by a logarithmic factor leading to a new distribution called quasi-Weibull. This is a three-parameter distribution, where one parameter is inherited from the underlying exponential distribution, and the others originate from the transformation. The properties of the quasi-Weibull distribution are studied. Specifically, the impact of the parameters on the analyticity of characteristic function, the existence of the moment generating function, the moment-determinacy/indeterminacy and the behaviour of the hazard function are investigated. © 2025 The Author(s).
  • Article
    Citation - Scopus: 0
    Polyethyleneimine Functionalized Waste Tissue Paper@waste PET Composite for the Effective Adsorption and Filtration of Organic Dyes From Wastewater
    (Elsevier B.V., 2025) Radoor, S.; Karayil, J.; Devrim, Y.; Kim, H.
    This study explores the potential of repurposing discarded plastic bottles and cellulosic paper waste to develop cost-effective and high-performance composites for dye removal applications. A novel composite, polyethyleneimine (PEI)-functionalized waste tissue integrated into waste polyethylene terephthalate (wPET) (PEIWT/wPET), was designed as an environmentally friendly adsorbent for wastewater treatment. Successful surface functionalization with PEI was confirmed through FTIR, EDX, and XPS analyses. The PEI-modified composite exhibited enhanced mechanical and thermal stability while demonstrating significantly improved dye adsorption/filtration performance. The composite was evaluated for the removal of both cationic (crystal violet, CV) and anionic (orange II, O II) dyes under optimized conditions; (10,000 mg/L and 1666 mg/L) adsorbent dosage, (11 and 1) pH, 10 mg/L initial dye concentration, and (180 min and 120 min) contact time for CV and O II respectively. Experimental results showed that PEIWT/wPET achieved maximum adsorption capacities of 3.94 mg/g for CV and 11.73 mg/g for O II, approximately five times higher than the unmodified composite (0.74 and 2.4 mg/g). Adsorption isotherm and kinetic studies indicated that the data aligned well with the Langmuir as well as Freundlich and pseudo-second order models. The membrane also exhibited filtration capability for both dyes, achieving a filtration efficiency of 78.69 % for anionic and 41.31 % for cationic dye separation. Overall, the PEIWT/wPET composite offers a promising, sustainable, and energy-efficient solution for the removal of organic pollutants. © 2025 Elsevier B.V.
  • Article
    Citation - Scopus: 0
    A New Approach To the Existence and Uniqueness of Solutions for A Class of Nonlinear Q-Fractional Boundary Value Problems
    (Institute of Applied Mathematics of Baku State University, 2025) Karapinar, E.; Sevinik Adıgüzel, R.; Aksoy, Ü.; Erhan, İ.M.
    The object of this study is a boundary value problem associated with a q-difference equation of fractional order. The existence and uniqueness of a solution in the case of multi-point boundary conditions is studied from the viewpoint of fixed point theory. An integral equation equivalent to the boundary value problem is derived and the fixed points of the related integral operator are investigated by using a contractive condition involving a comparison function. The Ulam-Hyers stability of the problem is also discussed. Theoretical results are followed by a particular example. © 2025, Institute of Applied Mathematics of Baku State University. All rights reserved.
  • Conference Object
    Citation - Scopus: 0
    A Hybrid Data-Driven and Fuzzy MCDM Approach for Employee Selection
    (Institute of Electrical and Electronics Engineers Inc., 2025) Sadeghzadeh, K.; Bahreini, P.; Kao, Y.-L.; Yilmaz, I.; Erdebilli, B.; Aghsami, A.; Bahrini, A.
    Employee selection, a cornerstone of human resource management, critically shapes organizational performance and long-term effectiveness. While traditional approaches primarily rely on expert-based evaluations, this study proposes a novel hybrid framework that integrates Multi-Criteria Decision-Making methods with data mining techniques to reduce the dimensionality of the number of criteria or variables considered. By integrating backward regression with fuzzy Multi-Criteria Decision-Making methods, our framework reduces model complexity and captures criteria interdependencies, while fuzzy logic addresses ambiguity in expert judgment, a gap often overlooked in prior research. The methodology first uses backward regression modeling with the employee attrition rate as the response variable to identify core criteria. Subsequently, the fuzzy Decision-Making Trial and Evaluation Laboratory analyzes interrelationships between criteria, followed by the fuzzy Analytic Network Process for weighting criteria and ranking candidates. We validate our approach using real-world recruitment data - including expert interview scores and historical attrition - from a company specializing in electronic attendance systems. The AI-generated rankings are benchmarked against these expert-based evaluations to assess alignment with human judgment. Initially, 17 criteria were systematically reduced to 11 core factors, resulting in a streamlined yet robust evaluation system. Our findings emphasize that 'Time-of-service,' 'Requested-wage,' 'Teamwork,' and 'Leadership' are the most critical criteria influencing effective IT personnel selection. © 2025 IEEE.
  • Book Part
    Citation - Scopus: 5
    Vibration-Assisted Machining of Aerospace Materials
    (Springer Nature, 2022) Namlu, R.H.; Sadigh, B.L.
    Recent technologic advancements, especially in cutting-edge sectors like aerospace industries, call for new materials with superior properties. Like advanced engineering alloys, composites, and superalloys, these new materials provide the required specifications; however, to make use of these materials, they are needed to be formed into a final product. Machining is one of the most used manufacturing processes. Since in this process, the chip removal action occurs with direct contact between the cutting tool and workpiece, therefore, cutting materials with superior mechanical properties become a backbreaking process to be carried out. Along with the desired properties of the new advanced engineering materials in the aerospace industry, superior mechanical properties such as high wear resistance and low thermal conductivity of these materials lead to low machinability and difficulties in producing the desired end products by machining. As traditional machining methods are not efficient enough in machining such materials, new machining techniques have been invented to deal with these problems. Nontraditional machining processes are developed to deal with such obstacles that use chemical, electrochemical, thermal, and mechanical energy sources to facilitate the material removal process, reduce cost, and enhance product quality. However, in some cases, these methods’ low production efficiency forced engineers to combine the advantages of multiple machining methods in one hybrid process and improve the process efficiency by expediting the manufacturing process. One of these hybrid manufacturing methods is vibration-assisted machining. The vibration-assisted machining method aims to improve the material removal process by giving high frequency and low amplitude mechanical energy in vibrations to the workpiece or cutting tool. Vibration-assisted machining methods first emerged in the late 1960s and gained popularity in the early 2000s, and nowadays, research stages have gained momentum and are used even in mass production. Vibration-assisted machining has many benefits over traditional machining processes, like reducing costs, cutting forces, required power, secondary operations, cutting tool wear, and increasing the machined surface quality, tool life, and finally, the process performance. In this chapter, a detailed literature survey on the effects of vibration implementation on the performance of various machining processes, including turning, milling, drilling, and cutting advanced aerospace materials, is systematically summarized and discussed. At the end of this chapter, a case study is provided to understand the topic deeply. The detailed review shows that vibration-assisted machining enhances the cutting process in terms of cutting forces, tool wear, and surface roughness compared to traditional methods. Also, case study outcomes support those findings. Likewise, future studies show that vibration-assisted machining process still needs to be investigated deeply and it is a promising research area. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Calcium Phosphate Honeycomb Scaffolds With Tailored Microporous Walls Using Phase Separation-Assisted Digital Light Processing
    (MDPI, 2025) Kim, Gyu-Nam; Park, Jae-Hyung; Song, Jae-Uk; Koh, Young-Hag; Park, Jongee
    The present study reports on the manufacturing of biphasic calcium phosphate (BCP) honeycomb scaffolds with tailored microporous walls using phase separation-assisted digital light processing (PS-DLP). To create micropores in BCP walls, camphene was used as the pore-forming agent for preparing BCP suspensions, since it could be completely dissolved in photopolymerizable monomers composed of triethylene glycol dimethacrylate (TEGDMA) and polyethylene glycol diacrylate (PEGDA) and then undergo phase separation when placed at 5 degrees C. Therefore, solid camphene crystals could be formed in phase-separated BCP layers and then readily removed via sublimation after the photopolymerization of monomer networks embedding BCP particles by DLP. This approach allowed for tight control over the microporosity of BCP walls by adjusting the camphene content. As the camphene content increased from 40 to 60 vol%, the microporosity increased from similar to 38 to similar to 59 vol%. Consequently, the overall porosity of dual-scale porosity scaffolds increased from similar to 51 to similar to 67 vol%, while their compressive strength decreased from similar to 70.4 to similar to 13.7 MPa. The mass transport ability increased remarkably with an increase in microporosity.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Intensive Parenting of Mothers in 11 Countries Differing in Individualism, Income Inequality, and Social Mobility
    (Pergamon-Elsevier Science Ltd, 2025) Lubiewska, Katarzyna; Zeglen, Marta; Lun, Vivian Miu-Chi; Park, Joonha; Runge, Ronja; Muller, Jacomien; van der Kaap-deeder, Jolene
    Although intensive parenting has been found to be mostly detrimental for both children and parents, less is known about the correlates and sources of this type of parenting. This study aimed to examine associations between mother's primary involvement in caregiving and intensive parenting, as well as their potential sources, thereby focusing on: family social status, characteristics of the national economy (income inequality and social mobility) and culture (individualism-collectivism) in 11 culturally diverse countries. Participants were 2535 mothers of children aged between 6 and 10. Mothers reported on their intensive parenting behaviors, entailing both supportive and undermining aspects of meeting their child's needs, as well as their level of involvement in daily caregiving tasks and the subjective family social status. Hypotheses were tested controlling for country level response style. Results revealed that: mothers who were more often the primary caregiver across daily tasks used more intensive parenting behaviors; high social status mothers were using less child need undermining yet more supportive intensive parenting behaviors, and less frequently served as the primary caregiver for daily tasks; the undermining intensive parenting behaviors related positively to country-level individualism and income inequality, whereas relations with social mobility were mixed.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Wavelet-Enhanced Sequence-To Modeling With Attention Mechanism for Short-Term Wind Power Forecasting
    (Taylor & Francis inc, 2025) Karaca, Burak; Unlu, Kamil Demirberk; Turkan, Semra
    Electricity load forecasting is crucial to managing electric systems, especially loads produced from renewable energy sources since the load from renewable energy sources varies when compared with nonrenewable sources. Turkey is producing an increasing amount of electricity from wind energy every day. The aim of this study is to introduce a hybrid deep learning model based on sequence-to-sequence learning (seq-2-seq), attention mechanisms, and wavelet transformation. Long Short-Term Memory (LSTM), Gated Recurrent Unit, and Bidirectional Long Short-Term Memory (BiLSTM) are used as decoders and encoders in the seq-2-seq model. We proposed six different models. All models are univariate type, requiring only the data itself. The model can be used on any wind farms without requiring the meteorological data. We test the proposed model on four different wind farms in Turkey: Soma, Biga, Balikesir, and Mersin. We utilize four different performance metrics to test the model's performance: mean squared error (MSE), mean absolute error (MAE), mean absolute percentage error (MAPE), and coefficient of determinations (R2). The best model is seen as Wavelet-Seq2Seq-BiLSTM-LSTM at Biga Wind Farm, which achieved the best performance with a MAE of 0.127, an MSE of 0.001, a MAPE of 0.28, and an R2 of 0.997.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Assessment of Anticancer Effects of Aloe Vera on 3D Liver Tumor Spheroids in a Microfluidic Platform
    (Wiley, 2025) Tevlek, Atakan; Kibar, Gunes; Cetin, Barbaros
    The search for effective anticancer therapies has increasingly focused on natural compounds like Aloe vera, renowned for its therapeutic properties. This study investigates the anticancer properties of Aloe vera on 3D liver tumor spheroids via a PDMS-based microfluidic device, providing a more physiologically realistic model compared to traditional 2D cultures. HepG2 cells were cultivated to generate 3D spheroids on-chip, thereafter subjected to different concentrations of Aloe vera and the chemotherapeutic drug Doxorubicin to evaluate cytotoxic effects. The microfluidic system, validated by COMSOL simulations, facilitated continuous perfusion and real-time assessment of cell viability over a duration of 10 days. The results indicated that Aloe vera markedly diminished cell viability by triggering apoptosis at concentrations over 12.5 mg/mL. IC50 values were determined at 72 h: 25 +/- 0.10 mg/mL for Aloe vera and 5.47 +/- 0.03 mu g/mL for Doxorubicin in 2D cultures, but in 3D cultures, the IC50 values were 31.25 +/- 0.14 mg/mL for Aloe vera and 8.33 +/- 0.05 mu g/mL for Doxorubicin. This study underscores the promise of Aloe vera as a natural anticancer agent and illustrates the efficacy of microfluidic platforms for enhanced drug screening and customized medicine applications.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Evaluation of Laser Ablation for Recurrent Pilonidal Sinus Disease: Treatment Success, Recurrence Rates, and Patient Outcomes
    (Springer London Ltd, 2025) Emral, Ahmet Cihangir; Yazici, Sinan Efe
    PurposePilonidal sinus disease (PD) is a chronic, recurrent inflammatory condition primarily affecting the sacrococcygeal region, often resulting in discomfort, abscess formation, and recurrent disease. Various surgical interventions, including laser ablation, have been employed to treat recurrent PD. This study evaluates the efficacy of laser ablation in patients with recurrent PD, focusing on treatment success, recurrence rates, complications, and recovery outcomes.MethodsA retrospective analysis of 37 patients with recurrent pilonidal sinus disease treated with laser ablation between January 2022 and January 2025 was conducted. Preoperative data, postoperative complications, healing time, Visual Analog Scale values, and return to normal activities were collected.ResultsThe results showed that 70.3% of patients achieved complete healing without recurrence, while 21.6% experienced recurrence within a mean follow-up of 9.6 months. Five patients (13.5%) developed superficial infections, which were managed with local dressing. The median time for wound healing was 35 days, and patients returned to normal activities in an median of 1 day. Persistent disease was observed in 8 patients (21.6%), of whom 5 patients (62.5%) achieved full epithelialization after retreatment with laser ablation.ConclusionThe ease of application, avoidance of hospitalization, minimal postoperative care, and rapid return to daily activities make laser treatment a safe and effective therapeutic option for patients with recurrent pilonidal disease, supported by favorable outcomes and low morbidity.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Reducing AI Plagiarism Through Assessment of Higher-Order Cognitive Skills
    (Routledge Journals, Taylor & Francis Ltd, 2025) Toker, Sacip; Akgun, Mahi
    This study examines whether assessments focused on higher-order cognitive skills can help reduce AI-driven plagiarism in educational settings. A total of 123 participants completed three tasks of increasing complexity, aligned with Bloom's taxonomy, across four groups: control, e-textbook, Google, and ChatGPT. Results from repeated-measures ANOVA revealed that both similarity scores and AI plagiarism percentages significantly declined as task complexity increased (p < .01). The ChatGPT group initially exhibited the highest AI plagiarism rates during lower-order tasks, but their performance improved on higher-order tasks requiring analysis, evaluation, and creation. These findings highlight a clear distinction between similarity scores and AI plagiarism detection, emphasising the need for combined evaluation methods. Overall, the study demonstrates that designing assessments to foster higher-order thinking offers an effective strategy for minimising plagiarism associated with generative AI tools, providing practical implications for academic integrity policies and instructional design.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    4D Printing of Reusable Mechanical Metamaterial Energy Absorber, Experimental and Numerical Investigation
    (Iop Publishing Ltd, 2025) Fallah, Ali; Saleem, Qandeel; Scalet, Giulia; Koc, Bahattin
    This study investigates the compression behavior, energy absorption, shape memory properties, and reusability of 4D-printed smart mechanical metamaterials. Four structural configurations, i.e. honeycomb, re-entrant, and two modified re-entrant designs were developed to assess microstructure effects. Samples were fabricated using Polylactic Acid (PLA), a widely used shape memory polymer (SMP) in 4D printing, and polyethylene terephthalate glycol (PETG), an emerging SMP with demonstrated shape memory performance in recent studies. Cold-programming-induced shape recovery was evaluated at room temperature, simulating real-world conditions. Finite element simulations of compression and shape memory cycles matched experimental results well. Auxetic samples with negative Poisson's ratios showed superior energy absorption. However, only PETG demonstrated sufficient reusability, while PLA proved unsuitable for reusable designs. The PETG-3 modified re-entrant structure exhibited the best performance, with high energy absorption, delayed densification onset, and shape recovery and reusability factors of 0.95 and 0.96, respectively. Findings highlight the importance of considering both shape recovery and reusability when designing smart structures to address industrial challenges.
  • Article
    Citation - WoS: 0
    Citation - Scopus: 0
    Ongoing Discussion: Is Prophylactic Central Neck Dissection Necessary in Ct1a-B,2n0 Papillary Thyroid Cancer
    (Sage Publications Ltd, 2025) Bayir, Omer; Akan, Latif; Kizilgul, Muhammed; Ucan, Bekir; Karahan, Sevilay; Toptas, Gokhan; Korkmaz, Mehmet Hakan
    Objective: To analyze the central lymph node metastasis (CLNM) rates of patients who underwent prophylactic central lymph node dissection (pCLND) with total thyroidectomy for cT1-2N0 papillary thyroid cancer in our clinic, to evaluate the conditions associated with lymph node metastasis, and to examine the necessity of pCLND in these patient groups.Methods: This study includes a retrospective review of the medical data of patients who underwent bilateral/unilateral central lymph node dissection (CLND) (b/uCLND) with total thyroidectomy in our center between 2013 and 2021, whose fine needle aspiration biopsy result was reported as malignant, who were detected as cT1a-1b-2N0 on thyroid and neck ultrasonography.Results: Of the 251 patients included in the study, 63 (25%) had CLNM (49 (19.5%) ipsilateral and 14 (5.5%) had contralateral CLNM). Twenty-two (20.1%) of 109 patients with cT1a, 30 (28.3%) of 106 patients with cT1b, and 11 (30.5%) of 36 patients with cT2 had CLNM, and metastasis rates increased with increasing cT category. CLNM rates increased with increasing pT category (p=0.005). CLNM was present in 21 (38.8%) of 54 patients (21.5%) with collision tumors, and metastasis rates increased significantly compared to the presence of a single histopathologic tumor (p=0.006). CLNM rates were higher in patients with multicentric tumor localization than in those with unicentric localization (p=0.006).Conclusion: Multicentricity, bilaterality, capsule invasion, collision tumors and tumors larger than 1 cm increase the risk of CLNM. uCLND for tumors larger than 1 cm, bCLND for tumors larger than 2 cm can be considered. We believe that patients with unilateral CLNM also have an increased risk of contralateral metastasis.
  • Article
    Citation - WoS: 0
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    Impact Behavior of Sandwich Composites With S2-glass/Epoxy and PVC Foam Under Low Velocity Loading
    (Walter de Gruyter Gmbh, 2025) Karakuzu, Ramazan; Sarioglu, Rifat; Kandas, Halis
    The purpose of this research is to examine the absorbed energy, resistance to impact load of sandwich composite, and power exercised by impactor, experimentally. Therefore, low velocity impact tests were performed at three different energy levels for two distinct noses on sandwich composite with a PVC core and varying amounts of S2-glass layers. The vacuum-assisted resin infusion method (VARIM) was used to manufacture sandwich composites. S2-glass fabric with an areal density of 190 gm-2 and polyvinyl chloride (PVC) core material with a thickness of 10 mm were utilized. For every face sheet material, three distinct layer numbers of S2-glass fabrics were used. It is seen that composites exposed to flat impactors absorb considerably more energy than hemispherical ones.
  • Article
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    Biosorption of Reactive Dyes by Novel Bacterium Leclercia Adecarboxylata: Complete Removal of Reactive Black 5 and Molecular Insights Into the Adsorption Mechanism
    (Wiley, 2025) Sen, Seda; Korkmaz, Filiz; Kilic, Nur Kocberber
    Leclercia adecarboxylata isolated from the D & uuml;den Waterfall (Turkey) was utilized as a biosorbent for the removal of Reactive Black 5 (RB5), Setazol Blue BRF-X (BRF-X), Setazol Navy Blue SBG (SNB), and Setazol Turquoise Blue G (STBG). Of the dyes, RB5 was removed with the highest efficiency, 97.4% after 60 min. The effect of parameters such as pH (3-9), initial biosorbent dose (0.1-2.0 g/L), and initial dye concentration (25-1200 mg/L) on the biosorption of RB5 was investigated. Increasing the biosorbent dosage from 0.1 to 2.0 g/L enhanced the RB5 removal from 55.3% to 100% within 10 min. The complete removal (100%) of RB5 was achieved in media with 2.0 g/L biosorbent and 25 mg/L RB5 at pH 3 after 10 min. Additionally, the soluble extracellular polymeric substances (EPS) of L. adecarboxylata were found to consist of proteins, lipids, nucleic acids, and polysaccharides according to Fourier transform infrared spectroscopy (FTIR) analysis. The EPS was found to play a crucial role in dye removal, forming chemical interactions with dye molecules. Zeta potential analysis was used to evaluate the charge distribution on the biosorbent surface (-12.6 +/- 1.1 mV) and its interactions in the biosorption process. Kinetic and isotherm models suggested a complex interaction mechanism between the biomass and the dye. Adsorption isotherm data were analyzed via nine isotherm models. Among them, the Hill model was found to be the best fit for describing the equilibrium adsorption process of the RB5 (R2 = 0.9993). Overall, the applied models elucidated the influence of both physical and chemical interactions on the mechanism. Kinetic studies revealed that the adsorption of RB5 fit a pseudo-second-order kinetic model. The unique biochemical composition of the indigenous L. adecarboxylata biosorbent provided a high affinity for RB5, offering a sustainable, rapid, and economical solution for the treatment of dye-polluted water.
  • Article
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    The Effectiveness of Redistribution in Carbon Inequality: What About the Top 1%
    (MDPI, 2025) Boz, Arinc; Unalan, Gokhan; Caskurlu, Eren
    This study investigates the impact of income redistribution on carbon emissions across 154 countries from 1995 to 2023, with a particular focus on carbon inequality. Using a dynamic panel approach with two-step System GMM estimations, the analysis considers three dependent variables: average per capita emissions, top 1% per capita emissions, and the ratio of top 1% per capita emissions to national average per capita emissions. Results show that income redistribution (measured in both absolute and relative terms) significantly reduces average per capita emissions in the short term. However, redistribution has no mitigating effect on the carbon emissions of the top 1%; in some models, it is even associated with increases in elite emissions and a widening of carbon inequality. These findings suggest that while redistribution may contribute to national emission reductions, it is insufficient to curb the carbon-intensive lifestyles of the wealthiest. The analysis confirms the Environmental Kuznets Curve (EKC) hypothesis and underscores the need for complementary policy tools to more effectively address the emissions of high-emitting individuals. Overall, this study contributes to the literature by linking income redistribution with emission disparities across income groups and highlights the importance of considering distributional dynamics in climate policy design.
  • Article
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    Exploring the Role of Search Experience and Self-Efficacy in Cognitive Self-Esteem: a Latent Growth Modelling Approach
    (Sage Publications inc, 2025) Akgun, Mahir; Toker, Sacip
    In this study, we seek to contribute to a broader understanding of the processes and contexts that lead to inflated judgments of cognitive ability in human-computer partnerships. We conducted a within-subject experiment design study with 164 college students in order to explore the impact of the search experience on cognitive self-esteem (CSE). Our preliminary findings revealed that search experience is an important factor that influences individuals' perception of their abilities to answer questions. This influence was observed regardless of whether they have access to search tools or not. However, search experience does not explain the significant change in CSE that we found between "access" and "no access" (to search tools) conditions.
  • Article
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    Incidental Detection of Ectopic Liver Tissue During Elective Cholecystectomy: a Case Report
    (Frontiers Media Sa, 2025) Emral, Ahmet Cihangir
    Introduction Ectopic liver tissue (ELT) is a rare embryological anomaly most commonly found in the abdominal region, particularly on the gallbladder. It is generally asymptomatic and is often discovered incidentally during surgery or autopsy. Although histologically similar to the main liver, ELT should be excised due to the potential risk of malignancy.Case presentation This study presents a case of incidental ELT discovered during elective cholecystectomy in a 34-year-old female patient. Preoperative imaging revealed multiple gallstones, and during laparoscopic exploration, an ectopic liver tissue lesion was found on the gallbladder fundus. The lesion, measuring 10 x 5 mm, was excised en bloc with the gallbladder and sent for pathological examination, which showed no malignancy.Discussion The rarity and asymptomatic nature of ELT make it difficult to diagnose preoperatively, but its association with malignant transformation warrants careful management. In cases of suspected malignancy, further surgical approaches such as extended surgical margins and regional lymph node dissection should be considered.Conclusion This case underscores the importance of early detection and excision of ectopic liver tissue due to its potential for malignant transformation.
  • Article
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    On Perturbed-Sτ-Contractions
    (Amer Inst Mathematical Sciences-Aims, 2025) Alsahli, Ghaziyah; Shahi, Priya; Karapinar, Erdal
    This study aims to present novel fixed-point results within the structure of a newly introduced abstract structure known as perturbed metric spaces. As expected, these spaces naturally extend and generalize the classical metric spaces. Consequently, the key results of this study broaden, refine, and broaden the existing fixed-point results in the published outcomes.