WoS İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://acikerisim2.beykoz.edu.tr/handle/20.500.12879/2

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Aging in Turkey
(Faculty of Economics Osijek, 2020) Kilic, Burak; Kilic, Zafer
This study covers the services offered to the elderly, individuals who work in this field, statistical data on aging in Turkey, and similar issues. The data in this study was collected from the literature review and from written sources. In the literature, the concept of age is divided into two: biological and chronological. Although chronological age is the same in all humans, biological age varies according to individuals. Chronological age is the number of years a person has been alive. Biological age is the representation of the biological step as a unit of time. Aging is the state where individuals gradually lose their physical and psychological power. The increasingly elderly population has also caused the academic environment to focus on the field of older people. Moreover, the increasing elderly population has accelerated the process of developing national policies and plans in countries and the process of producing services in line with the developed plans and policies. According to the aging data of the United Nations, there is an increase in the number and proportion of elderly individuals in the world. As a result, in this case, Turkey does not differ, so the elderly population is increasing with each passing day.
Alterations in Niban Gene Expression as a Response to Stress Conditions in 3t3-L1 Adipocytes
(Springer, 2020) Cevik, Mehtap; Gunduz, Meliha Koldemir; Deliorman, Gokce; Susleyici, Belgin
Adipocyte death is important in obesity development. Understanding and prevention of adipocyte deaths may be a molecular approach in the treatment. In the study, we aimed to understand role of Niban gene, which acts as an anti-apoptotic molecule as a response to stress conditions, in adipocytes. 3T3-L1 adipocytes were treated with different doses of linoleic acid, hydrogen peroxide and ethanol; and proliferation of the cells examined with real time monitoring iCELLingence system. Gene expression levels were measured by q-PCR. As a response to 24h 480 mu M linoleic acid treatment, Niban gene expression was found to be higher than control group (p = 0.008), whereas 24 h 90 mM ethanol treatment was determined to be lower than control group (p = 0.008). The highest value of Niban gene expression among H2O2 treatment groups was detected in 4h 600 mu M H2O2 in comparison to control group (p = 0.008). To understand role of Niban in adipogenesis, Niban gene expressions were compared between pre-adipocytes and advanced fat accumulated adipocytes and determined to be significantly different (p = 0.042). Our results suggest that Niban might be involved in stress response process in adipocytes. However, the exact molecular role of Niban needs to be investigated in further studies.
Applicability of a Digitalization Model Based on Augmented Reality for Building Construction Education in Architecture
(Emerald Group Publishing Ltd, 2023) Guray, Tayibe Seyman; Kismet, Burcu
Purpose The purpose of this paper is to introduce a digitalization model (DM) for building construction courses in architectural education as a response to the recent emerging technologies in the era of digital transformations. This DM is developed and applied through augmented reality (AR) technologies to boost perception, understandings and ability to solve building construction details. Design/methodology/approach Based on a thorough review of recent technologies like AR, virtual reality (VR), building information modelling (BIM) and their applications in architectural education, the methodology involves the generation of a model, its application and evaluation. The model is based on the integration of BIM and AR which is applied into a third year "Building Construction Project" course. Each student has designed a residential building and accordingly prepared the construction drawings by adapting the DM. An online survey -based on Technology Acceptance Model - is conducted to evaluate the DM by quantitative data analysis from SPSS and Excel. Findings The key findings of the study include the following items: determination of the proper digital tools, the definition of the steps and workflow based on the building project phases to develop construction drawings and define precise details effectively. By the help of this, the DM is generated and applied. According to the survey and results, the DM which involves BIM-based AR is considered as beneficial, highly motivating and providing better perception on construction details. Originality/value Implication of AR/VR technologies is frequently seen in design studios, whereas building construction courses state its traditional approach. However, there is a huge potential in the digitalization of building construction education by increasing the perception of students together with the increased level of communication. The study aims to close the gap of digitalization by proposing a DM, which brings a systematic approach considering each phase of building construction project as conceptual, schematic, design development and construction documents by using BIM integrated AR. Moreover, the novel model specifically brings a new approach by generation of QR codes for construction details to embed videos or simulations into the two-dimensional drawing sheets. Furthermore, the DM proposes a new approach to satisfy emerging needs and requirements of the Architecture Engineering Construction industry.
Applications of Exosome Vesicles in Different Cancer Types as Biomarkers
(Bentham Science Publishing Ltd, 2024) Ihlamur, Murat; Kelleci, Kubra; Zengin, Yagmur; Allahverdiyev, M. Adil; Abamor, Emrah Sefik
One of the biggest challenges in the fight against cancer is early detection. Early diagnosis is vital, but there are some barriers such as economic, cultural, and personal factors. Considering the disadvantages of radiological imaging techniques or serological analysis methods used in cancer diagnosis, such as being expensive, requiring expertise, and being time-consuming, there is a need to develop faster, more reliable, and cost-effective diagnostic methods for use in cancer diagnosis.Exosomes, which are responsible for intercellular communication with sizes ranging from 30-120 nm, are naturally produced biological nanoparticles. Thanks to the cargo contents they carry, they are a potential biomarker to be used in the diagnosis of cancer. Exosomes, defined as extracellular vesicles of endosomal origin, are effective in cancer growth, progression, metastasis, and drug resistance, and changes in microenvironmental conditions during tumor development change exosome secretion. Due to their high cellular activity, tumor cells produce much higher exosomes than healthy cells. Therefore, it is known that the number of exosomes in body fluids is significantly rich compared to other cells and can act as a stand-alone diagnostic biomarker. Cancer-derived exosomes have received great attention in recent years for the early detection of cancer and the evaluation of therapeutic response.In this article, the content, properties, and differences of exosomes detected in common types of cancer (lung, liver, pancreas, ovaries, breast, colorectal), which are the leading causes of cancer-related deaths, are reviewed. We also discuss the potential utility of exosome contents as a biomarker for early detection, which is known to be important in targeted cancer therapy.
An Approach to Predicting the Effect of Shadows from Surrounding Buildings on the Performance of Solar Photovoltaic
(Gazi Üniversitesi, 2025) Yongkuan, S.; Wei, N.; Shanwu, Z.; Garip, I.
For a photovoltaic system in an urban building, building shadow occlusion is an often-encountered problem, photovoltaic array covered area will change with time, resulting in the photovoltaic array output volt-ampere performance curve being also different with time. With the engineering analytical model of silicon solar cells, the series-parallel of electrical circuits theory, and the solar Angle change formula, an approach to predicting the effect of shadows from surrounding buildings on the performance of solar photovoltaics is established. The simulation results show the difference of the PV array’s I-V and P-V performance curves with periods. An actual test is carried out for the completed photovoltaic project with building shadow occlusion, and the comparison with Matlab simulation I-V and P-V performance curve proves the predicting model can describe the output performance of the PV array with building shadow occlusion. © (2025), (Gazi Universitesi). All rights reserved.
The Association of Subordinates' Perception of the Manager's Ambiguous Behaviors with the Likelihood of Conflict Occurrence: A Cross-Cultural Study
(IACM-NCMR-INT Assoc Conflict Management, 2024) Honuk, Hizir; Kucuk, Burcu Aydin; Caglar, Cihan Tinaztepe
The research aims to provide evidence to explain the contradictive findings in the literature on the organizational conflict phenomenon and the relationship between conflict and culture, by focusing on the relationship between ambiguous behaviors and conflict. To achieve this goal, in the context of low-status compensation theory, the relationship between incivility, humor as ambiguous behaviors, and the likelihood of manager- subordinate conflict occurrence was investigated. To test the culture's effect on this relationship, survey data were collected from 478 white-collar subordinates working in SMEs in Turkey and the UK. According to the results, the subordinate's perception of the manager's ambiguous behaviors affects the likelihood of relationship conflict and task conflict occurrence. In addition, the study reveals that culture is associated with the likelihood of relationship conflict occurrence but not task conflict. The study contributes to the literature by providing evidence for the relationship between humor, incivility, conflict, and culture.
Authoritarian Neoliberalism and Resistance in Turkey Construction, Consolidation, and Contestation Introduction
(Palgrave Macmillan, 2022) Borsuk, Imren; Dinc, Pinar; Kavak, Sinem; Sayan, Pinar
While capitalism has been associated with democracy for a long time, the neoliberalisation that has coincided with the rise of populism and authoritarian resurgence in the global context demands further inquiry into the relationship between capital accumulation and political regimes. The growing literature on authoritarian neoliberalism examines the relationship between authoritarian governance and neoliberalisation, and interrogates how neoliberal reforms buttress the legal, administrative, and coercive power of states, creating leverage for ruling governments to enhance authoritarian forms of governance. While these studies highlight the vulnerability of these regimes and emphasise their crisis-laden character, there is a need for an extensive analysis of the dynamics of resistance in authoritarian neoliberal regimes to understand the limits and potentials of counter-hegemonic practices. Using in-depth case studies, this book demonstrates the repertoires of resistance against authoritarian neoliberalism in Turkey and discusses how different sections of society, including NGOs, bureaucrats, media, workers, marginalised communities and activists, challenge or reinforce neoliberal policies with their claims, tactics, strategies, and discourses. Drawing upon multidisciplinary scholarship from sociology, politics, law, media, urban development, and feminist studies, this book sheds light on the capacity of resistance to challenge the authoritarian forms of the neoliberal regime from within.
Cd Dopant Effect on Structural and Optoelectronic Properties of TiO2 Solar Detectors
(Springer, 2021) Ilhan, Mustafa; Koc, Mumin Mehmet; Coskun, Burhan; Erkovan, Mustafa; Yakuphanoglu, Fahrettin
Al/n-Si/Ti1-xO2CdxO/Al photodiodes were produced using sol-gel and spin coating methods where CdO dopant was applied on different concentrations (x = 0.0; x = 0.01; x = 0.05; x = 0.10). Cd dopant effect upon structural, optical, photodiode and electrical properties was assessed. Scanning electron microscope and energy-dispersive spectra were used in the structural investigation. Optic properties were assessed using UV-Vis spectroscopy and bandgap energies of the photodiodes were calculated which were found to be between 3.25 and 3.36 eV. Increased bandgap energy was observed with increased CdO doping rate. Photodiode properties were assessed under varying daylight illuminations. Barrier height, ideality factor, dark current, linear dynamic rate, photosensitivity, photoresponsivity of the photodiodes were calculated. Electrical properties of the Al/n-Si/Ti1-xO2CdxO/Al photodiodes were calculated where conductance-voltage and capacitance-voltage plots were obtained. Corrective conductance-voltage and corrective capacitance-voltage graphs confirm that the electrical properties of the photodiodes depend on AC signal frequency. Frequency-dependent electrical characteristics were attributed to the density of interface states which were found to be between 10(11) and 10(12). Decreased density of interface state was found for increased AC signal frequency.
Children with Learning Disorders Discourse with Their Mothers: The Role of Maternal Affectivity and Psychopathology Symptoms
(Springer, 2023) Alsancak-Akbulut, Cansu; Celik, Cihat; Erden, Gulsen
This study aimed to examine the role of maternal affectivity and psychopathology symptom severity on conversational styles of mothers and their children with learning disorders during recounting stressful events. 30 Turkish mothers and their children with learning disorders (n(boy) = 20, n(girl) = 10) aged between 7 and 14 included in this study. Mother-child dyads conversed about stressful events that children experienced at school and their conversation style was coded for high elaboration and low elaboration. Maternal affectivity and psychopathology symptom severity were also measured via self-report. Lower levels of negative affectivity predicted maternal high elaboration. Maternal positive affectivity and psychopathology symptom severity did not predict mother-child dyads' conversational style. These preliminary findings suggested that lower levels of negative affectivity, reflecting on mothers being sincere and calm, provide mothers with a warm environment for elaborating on the stressful event - even though the children were not able to respond with high elaboration.
Collecting Music as Information Management
(Routledge, 2022) Sesigur, Onur
Commodities in History: Theoretical Reflections and Empirical Case Studies
(Routledge Journals, Taylor & Francis Ltd, 2025) Gursoy, Ozgur Burcak
Comparing Cognitive Behavioral Therapy and Ericksonian Hypnotherapy for Obsessive–Compulsive Disorder: A Randomized Controlled Trial
(Routledge, 2026) Çınaroğlu M.; Yılmazer E.; Odabaşı C.; Ülker S.V.; Tan S.; Hızlı Sayar G.
Obsessive–Compulsive Disorder (OCD) is a chronic condition that often responds well to Cognitive Behavioral Therapy (CBT), though many patients fail to achieve full remission. Ericksonian Hypnotherapy (EH) has been proposed as a promising alternative. This randomized controlled trial compared the efficacy of CBT and EH against a waitlist control in 99 adults with OCD. Participants received 12 weekly online therapy sessions. Outcomes were assessed at baseline, mid-treatment, and post-treatment using the Padua Inventory-Revised, Yale–Brown Obsessive Compulsive Scale–Self-Report (Y-BOCS-SR), and Beck Anxiety Inventory (BAI). Both CBT and EH led to large, statistically and clinically significant reductions in OCD symptoms compared to waitlist. CBT was more effective for compulsive behaviors such as washing, while EH produced greater reductions in obsessive rumination and general anxiety. No serious adverse events occurred. These findings suggest that EH is a viable and comparably effective treatment to CBT, with distinct therapeutic benefits. EH may offer a particularly useful option for patients with obsession-dominant symptom profiles or comorbid anxiety. © 2026 International Journal of Clinical and Experimental Hypnosis.
Comparing Cognitive Behavioral Therapy and Ericksonian Hypnotherapy for Subclinical Depression and Anxiety: A Randomized Controlled Trial
(Routledge Journals, Taylor & Francis Ltd, 2025) Cinaroglu, Metin; Yilmazer, Eda; Odabasi, Cemre; Ulker, Selami Varol; Sayar, Gokben Hizli
This randomized controlled trial examined the effectiveness of Cognitive Behavioral Therapy (CBT) and Ericksonian Hypnotherapy (EH) in reducing symptoms of depression and anxiety among individuals with subclinical levels of distress. A total of 150 participants were screened, and 45 eligible participants were randomized into three groups: CBT (n = 15), EH (n = 15), and a waitlist control group (n = 15). Interventions consisted of 12 weekly sessions, with assessments conducted at baseline, mid-intervention, and post-intervention using the Beck Depression Inventory-II (BDI-II) and Beck Anxiety Inventory (BAI). Both CBT and EH significantly reduced symptoms of depression and anxiety compared to the control group, with no significant differences in efficacy between the two interventions. CBT's structured approach demonstrated consistent improvements across both depression and anxiety, while EH showed a slightly faster reduction in anxiety symptoms at mid-intervention, highlighting its potential for addressing somatic and cognitive dimensions of anxiety. This study extends previous findings by focusing on a non-clinical population, emphasizing the potential of these interventions as early strategies for preventing symptom escalation. Unlike prior work primarily targeting diagnosed populations, this research underscores the applicability of CBT and EH in addressing subthreshold distress. Limitations include a small sample size, lack of follow-up assessments, and reliance on self-reported measures. Future research should explore long-term outcomes, larger samples, and the integration of CBT and EH. These findings contribute to the growing body of evidence supporting diverse psychotherapeutic modalities for early mental health intervention.
Criticality Investigations for the Fixed Bed Nuclear Reactor Using Thorium Fuel Mixed with Plutonium or Minor Actinides
(Pergamon-Elsevier Science Ltd, 2009) Sahin, Suemer; Sahin, Haci Mehmet; Acir, Adem; Al-Kusayer, Tawfik Ahmed
Prospective fuels for a new reactor type, the so called fixed bed nuclear reactor (FBNR) are investigated with respect to reactor criticality. These are (1) low enriched uranium (LEU); (2) weapon grade plutonium + ThO2; (3) reactor grade plutonium + ThO2; and (4) minor actinides in the spent fuel of light water reactors (LWRs) + ThO2. Reactor grade plutonium and minor actinides are considered as highly radioactive and radio-toxic nuclear waste products so that one can expect that they will have negative fuel costs. The criticality calculations are conducted with SCALE5.1 using S-8-P-3 approximation in 238 neutron energy groups with 90 groups in thermal energy region. The study has shown that the reactor criticality has lower values with uranium fuel and increases passing to minor actinides, reactor grade plutonium and weapon grade plutonium. Using LEU, an enrichment grade of 9% has resulted with k(eff) = 1.2744. Mixed fuel with weapon grade plutonium made of 20% PuO2 + 80% ThO2 yields k(eff) = 1.2864. Whereas a mixed fuel with reactor grade plutonium made of 35% PuO2 + 65% ThO2 brings it to k(eff) = 1.267. Even the very hazardous nuclear waste of LWRs, namely minor actinides turn out to be high quality nuclear fuel due to the excellent neutron economy of FBNR. A relatively high reactor criticality of k(eff) = 1.2673 is achieved by 50% MAO(2) + 50% ThO2. The hazardous actinide nuclear waste products can be transmuted and utilized as fuel in situ. A further output of the study is the possibility of using thorium as breeding material in combination with these new alternative fuels. (C) 2009 Elsevier Ltd. All rights reserved.
The Crowdsourcing Concept as a New Media Application
(Emerald Group Publishing Ltd, 2020) Durmus, Sevil Bektas
Introduction - In the twenty-first century, which is the age of communication and information, the time and space concepts have changed with new media technologies and changes have occurred in habits and ways of doing business using the Internet. In this respect, crowdsourcing concept comes first among the new applications with which internet users can share content. The crowdsourcing, which may be understood as `mass-based work' or `crowded resource', consists of a combination of `crowd' and `source', and refers to the use of a great number of human societies to do a common work. The crowdsourcing concept, used commonly as of the 2000s for different purposes, is included in the literature as a concept showing the power of crowds. It is a method in which communication and internet technologies are used with efficacy in the advertising and marketing fields. Purpose - The objective of the present study is to determine the pros and cons of the crowdsourcing concept through new media applications in the form of critical evaluations by examining sample case studies that use the crowdsourcing concept, which is becoming widespread in Turkey and in the whole world in recent years. Methodology - In this study, the `Case (Sample Event) Study Analysis', which is one of the qualitative research methods and which is a methodological approach that includes examining how the crowdsourcing system works indepth, will be used. Findings - Crowdsourcing is becoming a worldwide business model and allows anyone with free time and an internet connection to contribute to economic productivity. This study has discussed the importance of crowdsourcing for companies in contextual terms and has made predictions on how to make this concept become a better model in which fields.
Design and Simulation of the Microcantilever Biosensor for MITF Antigen and D5 Monoclonal Antibody Interaction Finite Element Analysis, and Experimental
(Bentham Science Publishing Ltd, 2024) Akcali, Pelin; Kelleci, Kubra; Ozer, Sevil
Background Biosensors and MEMS have witnessed rapid development and enormous interest over the past decades. Constant advancement in diagnostic, medical, and chemical applications has been demonstrated in several platforms and tools. In this study, the analytical and FEA of the microcantilever used in biomolecular analyses were compared with the experimental analysis results.Methods In this study, MITF antigen, which is a melanoma biomarker, and anti-MITF antibody (D5) were selected as biomolecules. A MEMS-type microcantilever biosensor was designed by functionalizing the AFM cantilever by utilizing the specific interaction dynamics and intermolecular binding ability between both molecules. Surface functionalization of cantilever micro biosensors was performed by using FEA. The stress that will occur as a result of the interactions between the MITF-D5 has been determined from the deviation in the resonant frequency of the cantilever.Results It has been found that the simulation results are supported by analytical calculations and experimental results.Conclusion The fact that the results of the simulation study overlap with the experimental and mathematical results allows us to get much cheaper and faster answers compared to expensive and time-consuming experimental approaches.
Developing a Building-Scale Circularity Indicator Through Fuzzy Analytical Hierarchy Process and Gini Index-Based Circularity Calculation Methods
(Taylor & Francis Ltd, 2025) Kismet, Burcu; Colakoglu, Meryem Birgul
Circular economy (CE) aims to achieve sustainable development by optimizing resource efficiency through innovative system designs. The built environment plays a crucial role in this transition, yet the absence of standardized indicators hinders effective circularity assessment. This study introduces a structured building-scale circularity indicator (BuCI) to support industry and academia in evaluating buildings' circularity levels and facilitating the shift towards a circular built environment. Based on a thorough review of CE, the methodology involves the generation of a model, its implementation on a selected case study and evaluation. The proposed model integrates the shearing layer and building lifecycle concepts to establish a measurement framework with defined criteria and key performance indicators. Fuzzy analytical hierarchy process and Gini index are used to formulate circularity calculation. Then, the BuCI is implemented on three different case studies, two steel and one reinforced concrete buildings. CS1 and CS2 reached 60% circularity level, thanks to the material advantages and certain design principles such as modularity, disassembly and flexibility, whereas CS3 calculated as 31.05% circular due to material and design decisions. The study contributes to the field by introducing a novel indicator for the industry, academia and authorities to accelerate the circular transition. For future studies, it is suggested to integrate cost and cultural heritage related criteria.
Divergent Developmental Performance of Turkey and South Korea: An Appraisal from Political Economy Perspective
(Routledge Journals, Taylor & Francis Ltd, 2023) Erdogdu, M. Mustafa
Turkey's per capita income was nearly three times South Korea's in 1962. Dramatic change has been observed since then. South Korea has transformed into an innovative economy approaching the global technology frontier in only a few decades. Turkey, on the other hand, has attained limited success with missed opportunities and has fallen behind. This article asks why this spectacular success was observed in South Korea, but not in Turkey. It seeks an answer by concentrating on certain variables that may explain this outcome. Assuming that primarily different types and capacities of societies and states explain the variations in economic performance, the article examines in particular, the institutional foundations of Turkish and Korean societies.
Drivers and Barriers on Implementing XR Technologies in the Construction Industry in Turkey
(Taylor & Francis Ltd, 2024) Seyman-Guray, Tayibe; Kismet, Burcu
This study presents drivers and barriers on construction industry extended reality (XR) implementations in Turkey. It aims to investigate the current state and future directions of XR opportunities for architecture offices and construction companies in a developing country. A quantitative approach was employed which involves conducting a survey, performing statistical analyses, and verification of the hypotheses. The data were analyzed by SPSS and Excel using the frequency, mean score, standard deviation (SD), and one sample t-test. Thirty-three different companies participated in the survey with a return rate of 56.89%. The results were considered statistically significant since all the p-values were below 0.05. The findings revealed that even though 60% of the companies are not using XR, 60% companies have near future plans on implementing them. According to the results, XR was considered as beneficial and highly motivating for the near future, yet it needs to be widespread for companies to keep themselves abreast of information and communication technology trends. Finally, by considering the findings obtained from the results this study reaches a classification of drivers as 'increased efficiency: time-cost-quality' and 'increased communication and coordination' while barriers as 'technical limitations', 'high costs', and 'unqualified professional'.
Effect of Heat Treatment on Magnetic Properties of Nanocomposite Nd-Lean Nd7Fe73b20 Ribbons
(Springer, 2021) Caglar, Seyit; Kilicaslan, M. Fatih; Atasoy, Ahmet; Tiryaki, Hasan; Erkovan, Mustafa; Hong, Soon-jik
In this work, we explored the effect of heat treatment on high boron and Nd-lean content magnetic Nd7Fe73B20 nanocomposite materials via vibration sample magnetometer (VSM), X-ray diffraction, differential thermal analysis (DTA), and scanning electron microscope (SEM). The Scherer formula was employed to estimate the effect in the crystal size of the heat treatment on high boron and Nd-lean content magnetic Nd7Fe73B20 nanocomposite materials. We heat-treated samples in different conditions to obtain optimum magnetic properties. Our high-throughput fabrication strategy allows us to elucidate the possibility of obtaining Nd-lean nanocomposite NdFeB magnet in terms of the melt-spinning. We evaluated the influence of heat treatment on the Nd-lean NdFeB/alpha-Fe nanocomposite magnets produced by melt-spinning. Here, in the heat-treated ribbon at 750 degrees C for 30 min, we obtained a combination of coercivity of 450 Oe, a high-saturation magnetization of 232 emu/g in the heat-treated ribbon at 650 degrees C for 30 min, which surpasses most traditional nanocrystalline magnets based on Fe-Co and pricey. The results we present here are expected to serve as a guideline for designing new magnets for industrial applications.

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