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Öğe Long/Short term orientation and coach turnover: A cross-cultural comparison(JOHN WILEY & SONS LTD, 2023) Bilger, Deniz; Bilekli Bilger, İlgünLong/Short term orientation and coach turnover: A cross-cultural comparisonÖğe Examining the relationship between connecting styles and cyberbullying and victimization(JOHN WILEY & SONS LTD, 2023) Türk, Burcu; Hamzaoğlu, Nurcan; Yayak, Aslı; Şenyuva, GülçinExamining the relationship between connecting styles and cyberbullying and victimizationÖğe Examining mental contamination in the context of moral foundations theory(JOHN WILEY & SONS LTD, 2023) Balım, Sercan; Bilekli Bilger, İlgünExamining mental contamination in the context of moral foundations theoryÖğe The adaptation of four orthorexia nervosa scales into Turkish population(JOHN WILEY & SONS LTD, 2023) Bilekli Bilger, İlgün; Dağ, İhsanThe adaptation of four orthorexia nervosa scales into Turkish populationÖğe Fault ride-through capability enhancement of hydrogen energy-based distributed generators by using STATCOM with an intelligent control strategy(Elsevier Ltd, 2023-12-25) Bayrak, Gökay; Yılmaz, Alper; Demirci, ErenThis paper presents an intelligent adaptive neuro-fuzzy inference (ANFIS)-based control method for increasing the Fault Ride-Through (FRT) capability of hydrogen energy-based distributed generators. The static synchronous compensator (STATCOM) system is integrated into the modeled power system with the Solid Oxide Fuel Cell system. To investigate the FRT capability of the proposed method, fault scenarios under different grid conditions are generated. The proposed ANFIS-based method is compared with the conventional PI-based STATCOM model and the system without any flexible AC transmission system devices. When the obtained results are analyzed, with the developed intelligent control method, an improvement of at least 8% and a maximum of 12.6% is achieved in the voltage value, depending on the type of failure that occurs. Besides, there is an improvement of at least 10% and at most 16.6% in the settling time values. The voltage fluctuations and sudden peaks in the system with the proposed method are less than in the other systems and it provides voltage support to the system successfully. The transient response of the Solid Oxide Fuel Cell system provides sustainable and stable reactive power support to the grid. Besides, the proposed method not only contributes to the FRT capability of system but also minimizes voltage changes that may reduce the life of the distributed generator or cause it to malfunctionÖğe An Ontological Security Analysis of Americanism in Turkish Foreign Policy, 1945-1960(2023) Alp, EmineThis article aims to draw attention to an aspect of Turkish foreign policy that has not been sufficiently theorized, especially within the framework of Ontological Security Theory. It attempts to show that one of the motives of Turkish foreign policy for its increasing orientation towards the West in the early Cold War period was to complete the three -centurylong project of Westernization and to find a relevant place in the international system. As an alternative version to the European model of Westernism or modernization, Americanism in Turkish foreign policy appeared as an illustration of the ontological security concerns of the country alongside its political, economic, and security interests. Under the Western security umbrella, the Turkish state sought not only to protect its territory from the Soviet threat but also to secure its state identity as an important part of Western civilization. Accordingly, T & uuml;rkiye adopted an anti-Soviet stance and tried to secure its place in the Western bloc, but often acted in favor of the United States and against its own national interests. This attitude has implications for the Ontological Security approach, which interprets the irrational and identity -oriented behavior of the nation -states as an effort to maintain the security of their 'being.' Consequently, this study argues that the pursuit of ontological security was an important element of Turkish foreign policy during this period.Öğe Evaluation of oxidative stress levels as biomarkers in vitiligo patients(WOLTERS KLUWER MEDKNOW PUBLICATIONS, 2023) İnce, Zeynep; Kutlu, Büşra; Yılmaz, Nazan; Cengiz, Fatma; Güler, ErayObjective: Vitiligo is a skin disease that causes the loss of melanocyte cells, which produce pigment in the skin. There is evidence that oxidative stress plays an important role in vitiligo disease of unknown pathogenesis. Evidence suggests that there is increased oxidative stress in melanocytes in patients with vitiligo. The aim of this study is to investigate oxidative stress markers in patients with vitiligo. Materials and Methods: Blood samples were taken from 23 vitiligo patients and 23 healthy control groups without any disease in Bezmialem Vakif University Hospital Dermatology and Venereal Diseases Outpatient Clinic. Total antioxidant levels (TAS) and total oxidant levels (TOS) were measured photometrically method with blood samples. The oxidative stress index (OSI) was calculated as the TOS to TAS level ratio. Results: When the results of the vitiligo patient group were compared with the control group, TOS and OSI were found to be significantly higher than the control group (P < 0.05). No statistically significant result was found in TAS. Conclusions: Our results show that oxidative stress plays a role in the pathogenesis of vitiligo.Öğe Ship-Generated Waste Management in İstanbul Ports: An Analytical Methodology to Evaluate Waste Reception Performance (WRP)(GALENOS PUBL HOUSE, 2023) Ülker, Duygu; Göksu, Serap; Yalçın, Ender; Canbulat, ÖnderShip-generated pollutants constitute a significant portion of marine pollution, prompting the International Maritime Organization to regulate this issue. European countries have also adopted the 2000/59/EC directive on port reception facilities, and environmental performance indicators have gained prominence in European ports. This study examines two ports, Ambarli and Haydarpasa, located in Istanbul, Turkiye, a European Union candidate country. The research compares port size and computes their waste reception performance (WRP) indices: ship-based WRP, waste-type-based WRP, and waste-amount-based WRP. Additionally, statistical analysis with the Spearman correlation test, Kruskal-Wallis test, and Mann-Whitney U tests are applied to observe the relation between the number of ships and waste reception amounts. This study enhances ship-generated waste management using port performance indicators to mitigate pollution. The performance indices reveal that although Ambarli's port size is larger than that of Haydarpasa, the WRP of Haydarpasa is significantly larger than that of Ambarli. This difference can be attributed to the greater waste volume generated by general cargo ships compared with container ships. Given the differences between terminal types, it is evident that there is no "one size fits all" policy approach, and mitigation strategies need to be tailored to the characteristics of each port.Öğe Recovery of Biobutanol from Aqueous Streams by Pervaporation Using Ionic Liquid Based Membranes(SPRINGER HEIDELBERG, 2023) Erdoğan, Derya; Hasanoğlu, AyçaButanol as a biofuel, can be produced by ABE (acetone-butanol-ethanol) fermentation. Pervaporation is a promising process, especially for the separation of biofuels from aqueous mixtures such as ABE mixtures which consists of 3:6:1 ratio of ABE solvents and water around 97%. In this study, ionic liquid-based membranes were developed for the recovery of butanol from aqueous mixtures. The active layer providing the selectivity was formed by using polydimethylsiloxane (PDMS) and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf2N]) ionic liquid (IL). Porous polyvinylidenefluoride (PVDF) and polytetrafluoroethylene (PTFE) films were used as the support layers. Two different types of membranes were prepared, in which IL was mixed into PDMS and cast as a thin film on the support layer, and IL was impregnated into the pores of the support layers. The effects of feed concentration and temperature on separation performance were investigated. In addition, the membranes were prepared with and without IL, and the effect of IL on membrane performance was investigated. In general, an increase in flux and selectivity values was observed with the addition of IL in PDMS. Butanol selectivities in pervaporation experiments with different process parameters were found between 24.7 and 61.3 when PTFE support layer was used and between 22.5 and 48.6 when PVDF support layer was used. Especially with the use of IL in the membrane, the fluxes increased 2.5-5 times, resulting in a significant increase in fluxes. As a result, it has been shown that PDMS+IL/PVDF and PDMS+IL/PTFE membranes can be used for effective butanol recovery by pervaporation.Öğe Analysis of cyber security knowledge gaps based on cyber security body of knowledge (Sep, 10.1007/s10639-022-11261-8, 2022)(Springer, 2022) Catal, Cagatay; Ozcan, Alper; Donmez, Emrah; Kaşif, AhmetThe correct affiliation of Emrah Donmez is "Department of Software Engineering, Bandirma Onyedi Eylul University, Balikesir, Turkey".The original version has been corrected.Öğe The Relationship Between Moral Foundations and Emotions(ISTANBUL UNIV, FAC LETTERS, DEPT PSYCHOLOGY, 2023) Yaşar, Melike; Akgün, SerapMoral foundations theory posits six moral foundations that guide moral judgment, namely, care, fairness, loyalty, authority, sanctity, and liberty. The theory states that the violation of fairness promotes anger, while doing so for sanctity elicits feelings of disgust. Meanwhile, violation of care is associated with anger toward the perpetrator and compassion for the victim. Only a few empirical studies test the propositions of the theory on the relationship between the violation of moral foundation and emotions, which were conducted in western culture. The current study investigates the relationships between moral transgressions and emotions in a nonwestern culture. It also examined feelings toward perpetrators and victims in the face of moral violation. In the pilot study conducted to determine the relevant scenarios to be used in the research, 187 participants evaluated whether or not the behaviors described in 52 scenarios were morally wrong and to report their feelings in these situations. The main study analyzed the participants' moral judgment, feelings toward moral violations, emotional reaction toward victims and perpetrators, and decisions on the punishment of perpetrators using the 12 moral violation scenarios identified in the pilot study. Toward this end, data were collected from 72 participants. To test whether the emotion experienced during the violation of one moral foundation is higher than that experienced in the violation of another, the study conducted a 2(gender) x 6(moral foundations) factorial multivariate analysis of variance (MANOVA) of moral foundations that involved repeated measures. The result indicated that violations of the foundations of justice and care were morally viewed as more wrong than those of other foundations. However, the findings pointed out that emotions guide moral judgment, and feelings toward victims and perpetrators differ accorrding to the violated moral foundations.Öğe ALUMINIUM OXIDE (Al2O3)-FEW LAYER GRAPHENE (FLG) REINFORCED ALUMINIUM HYBRID COMPOSITES(POLISH SOC COMPOSITE MATERIALS, 2022) Kaykılarlı, Cantekin; Altinisik, Zehra; Kilic, E. Can; Uzunsoy, Deniz; Yeprem, H. AygulThe present study investigates the microstructural and mechanical properties of few layer graphene (FLG, 0.1 to 5 wt.%) and aluminium oxide (Al2O3, 4 to 20 wt.%) reinforced Al6061 matrix composites prepared via mechanical alloying (MA), uniaxial pressing and pressureless sintering. The effects of the amounts of Al2O3 and FLG were studied. MA was carried out at 300 rpm for 3 h in a planetary ball mill in argon atmosphere. The mechanically alloyed (MAed) powders were compacted via uniaxial pressing (400 MPa) and sintering (620 degrees C, 2 h). The microstructural and mechanical properties of the Al-xAl(2)O(3)-yFLG powders and bulk samples were investigated via X-ray diffraction (XRD), light microscopy (LM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), the Archimedes' method and a hardness test. In the XRD analysis, the aluminium carbide (Al4C3) phase was not detected. The SEM, LM micrographs and EDS results show that the produced composites have a homogeneous structure. Based on the Archimedes' method, the densification rates of the rein-forced samples were higher than the unreinforced sample. The Al-20Al(2)O(3)-3FLG sample exhibited the highest relative density, 99.25%. According to the hardness measurements, the highest hardness value was 87.28 HV for the Al-20Al(2)O(3)-1FLG composite and increased twofold compared to Al6061.Öğe Aesthetics of invisibility in Iranian women's identity and their domestic space during the 1980s(Taylor and Francis, 2022) Golabi, MaryamThis paper investigates the relationship between the gendered identities of Iranian women and their domestic space in the first post-revolutionary decade (1980s) at a time when the influence of Islamic tenets on people's lives was considerably higher than in the previous and subsequent decades. Contributing to feminist geography and providing an understanding of a regional reality, the aim of this article is to elaborate on how the redefined identities and bodies of Iranian women, which were considered central to the representation of the Islamic national identity in Iran during the 1980s, influenced the design and usage patterns of houses at that time. The paper adopts Pierre Bourdieu's conceptual framework related to 'social space' and 'physical space', conceptualizing a house (physical space) as a translated form of social space. The article proposes the concept of the 'aesthetics of invisibility' to comprehend the identity of Iranian women and the domestic space in the 1980s. It uncovers the connection between the invisibility of the female body and domestic space through critical readings of contemporary printed and visual media, and also a study of 30 houses built in Tabriz during the 1980s. The paper reveals that for both Iranian women's bodies and domestic space, their invisibility and seclusion from the public world are equated with aesthetics, which is often interwoven with morality in Iranian society. It shows that the redefinition of the identity of women, their appearance, and the codes of conduct and dress came with modifications to the street facades of houses, and the design, organization and use of interior spaces.Öğe Algae and Their Metabolites as Potential Bio-Pesticides(MDPI, 2022) Asimakis, Elias; Shehata, Awad A.; Eisenreich, Wolfgang; Acheuk, Fatma; Yılmaz, MeteAn increasing human population necessitates more food production, yet current techniques in agriculture, such as chemical pesticide use, have negative impacts on the ecosystems and strong public opposition. Alternatives to synthetic pesticides should be safe for humans, the environment, and be sustainable. Extremely diverse ecological niches and millions of years of competition have shaped the genomes of algae to produce a myriad of substances that may serve humans in various biotechnological areas. Among the thousands of described algal species, only a small number have been investigated for valuable metabolites, yet these revealed the potential of algal metabolites as bio-pesticides. This review focuses on macroalgae and microalgae (including cyanobacteria) and their extracts or purified compounds, that have proven to be effective antibacterial, antiviral, antifungal, nematocides, insecticides, herbicides, and plant growth stimulants. Moreover, the mechanisms of action of the majority of these metabolites against plant pests are thoroughly discussed. The available information demonstrated herbicidal activities via inhibition of photosynthesis, antimicrobial activities via induction of plant defense responses, inhibition of quorum sensing and blocking virus entry, and insecticidal activities via neurotoxicity. The discovery of antimetabolites also seems to hold great potential as one recent example showed antimicrobial and herbicidal properties. Algae, especially microalgae, represent a vast untapped resource for discovering novel and safe biopesticide compounds.Öğe A new integrated methodology for constructing linguistic pythagorean fuzzy statements for decision making problems(IOS PRESS, 2022) Işık, Gürkan; Kaya, IhsanAs a combining concept of Pythagorean fuzzy sets (PFSs) and linguistic fuzzy sets (FSs), linguistic PFSs (LPFSs) has been suggested in the literature to deal with the uncertain and inconsistent information in multi-criteria decision making (MCDM) process. The LPFSs based procedure has been built by assuming that the experts make assessments suitable with PFS. It does not provide a mechanism to ensure the suitability of the assessments with theory of PFSs but there are other type of non-standard fuzzy sets such as Neutrosophic sets (NSs) used for modeling with inconsistent information. The main motivation of this study is to offer an assessment collection method to guarantee that the input statements will be Pythagorean fuzzy linguistic expressions. As a second motivation, it is aimed to extend the PFS method for the fuzzy modeling of the other type of decision-making problems apart from MCDM which do not require aggregation and comparison operations and continue with precise fuzzy modeling (PFM). The third motivation of this study is to offer enhancements on the LPFSs method to increase the sensitivity of the modeling while protecting the interpretability. For these purposes, a newmethodology based on LPFSs has been proposed and applied on a decision-making problem in a comparative way.Öğe A Novel Approach for Optimum Planning of Bobbin Boilers in Textile Industry(Ege Universitesi, 2022) Demir, Yunus; İnan, KemalAs in all sectors, the fierce competition in the world affects the textile sector deeply. It is an inevitable necessity for companies to reduce their costs in order to survive while maintaining their profitability. In this study, an applied efficiency study was conducted for the bobbin dyeing process, which is one of the important elements of the textile industry. In the application made in Bursah Tekstil Ltd. Sti., the problem of sequencing the lots waiting to be dyed in the bobbin dye boilers has been discussed. Integer linear model and iterative greedy-based heuristic are proposed to solve the problem. Sequencing made with the developed method resulted in an improvement of 17% in terms of the number of boiler washes and 13% in terms of total tardiness compared to the manual sequencing.Öğe A novel hesitant fuzzy linguistic term sets approach and its application on acceptance sampling plans(UNIV SISTAN & BALUCHESTAN, 2022) Işık, Gürkan; Kaya, I.Hesitant fuzzy linguistic term set (HFLTS) is an approach giving ability to obtain more flexible decision-making (DM) process by integrating linguistic fuzzy modeling (LFM) with hesitative expert judgments. Although HFLTS is widely -studied in the literature and many enhancements are made on HFLTS procedure, none of these enhancements gives ability to continue with precise fuzzy modeling (PFM) in decision process. LFM has a big drawback about accuracy because of the dependency between the size of term set and the comprehensiveness of fuzzy sets (FSs). This issue creates a very critical difficulty in modeling of DM problems that need sensitive evaluations by using HFLTS. This paper aims to solve this problem by proposing a novel HFLTS methodology that is usable for DM problems that need sensitive calculations in the decision stage. The proposed methodology integrates 2-tuple LFM and linguistic fuzzy modifiers with HFLTS to overcome the accuracy problem and obtain more sensitive and flexible decision procedure. This paper also presents an envelopment transformation technique to aggregate expert assessments as a fuzzy membership function instead of membership grades. It becomes possible to keep interpretability in a certain level and achieve sensitive results at the same time with the help of these modifications. The proposed HFLTS approach is analyzed on a real case example from manufacturing industry for acceptance sampling plans (ASP) that is a DM problem requiring sensitive calculations. As another originality of the paper, the main formulations of ASP are derived based on hesitant fuzzy defectiveness information. The obtained results are also compared with some existing enhancements of the HFLTS and the success of the proposed methodology is proved in terms of sensitive calculation.Öğe A novel switched-capacitor and fuzzy logic-based quadratic boost converter with mitigated voltage stress, applicable for DC micro-grid(Springer, 2022) Tekin, Hakan; Bulut, Kübra; Ertekin, DavutHigh-voltage and efficient power converter topologies equipped with the simple and practical controller circuits are necessary, especially for integration between the low-power and low-voltage renewable energy sources (RESs) like the photovoltaic (PV) arrays and the grid. These converters can be used widely in electrical vehicles (EVs) or charging stations, aquatic, medical, transportation application and other cases. This study proposes a switched capacitor (SC)-based quadratic boost converter (QBC) structure that provides high-voltage gain at low duty cycles equipped with the fuzzy logic control (FLC) technique. The output gain of the proposed converter is higher than a second-order step-up converter or a conventional QB circuit thanks to the presented switched-capacitor topology and the manipulation of the switches in conventional QBC. By using the second switch to the conventional QBC, the voltage stress across the main power switch will decrease that enhance the reliability and long-life of the converter. Since the SC block acts as an intermediate layer between the QB and load through the capacitors and diodes of this block, the voltage and current stresses of the power switches and diodes on the QB side are less than stresses for semiconductors for classical QB and boost converter. In this study, the proposed QBC and controller system are analyzed mathematically in detail and in MATLAB/SIMULINK environment. A 200 W prototype was developed in the laboratory to validate the proposed converter and computerized analysis. Finally, the theoretical and experimental results were compared and verified.Öğe A review of critical residential buildings parameters and activities when investigating indoor air quality and pollutants(Wiley, 2022) Teresa Baeza-Romero, Maria; Dudzinska, Marzenna R.; Torkmahalleh, Mehdi Amouei; Barros, Nelson; Gazioğlu Rüzgar, DuyguIndoor air in residential dwellings can contain a variety of chemicals, sometimes present at concentrations or in combinations which can have a negative impact on human health. Indoor Air Quality (IAQ) surveys are often required to characterize human exposure or to investigate IAQ concerns and complaints. Such surveys should include sufficient contextual information to elucidate sources, pathways, and the magnitude of exposures. The aim of this review was to investigate and describe the parameters that affect IAQ in residential dwellings: building location, layout, and ventilation, finishing materials, occupant activities, and occupant demography. About 180 peer-reviewed articles, published from 01/2013 to 09/2021 (plus some important earlier publications), were reviewed. The importance of the building parameters largely depends on the study objectives and whether the focus is on a specific pollutant or to assess health risk. When considering classical pollutants such as particulate matter (PM) or volatile organic compounds (VOCs), the building parameters can have a significant impact on IAQ, and detailed information of these parameters needs to be reported in each study. Research gaps and suggestions for the future studies together with recommendation of where measurements should be done are also provided.Öğe A stochastic approach for the assessment of suspended sediment concentration at the Upper Rhone River basin, Switzerland(Springer, 2022) Vaheddoost, Babak; Vazifehkhah, Saeed; Safari, Mir Jafar SadeghThis study addresses the link between suspended sediment concentration, precipitation, streamflow, and direct runoff components. This is important since suspended sediment concentration in the streamflow has invaluable importance in the management of the river basin. For this, the daily streamflow time series in five consecutive stations at Upper Rhone River Basin, a relatively large basin in the Alpine region of Switzerland, daily precipitation at one station, and the twice a week suspended sediment concentration records at the most downstream station between January 1981 and October 2020 are used. Initially, the base flow and the direct runoff associated with streamflow time series are obtained using the sliding interval method. Elasticity analyses between streamflow and suspended sediment concentration together with correlation, autocorrelation, partial autocorrelation, stationarity, and homogeneity are examined by the Augmented Dickey-Fuller and Pettitt's tests, respectively. Then, various stochastic scenarios are generated using the autoregressive moving average exogenous method (ARMAX). It is concluded that the precipitation and direct runoff have fewer effects on the suspended sediment concentration at downstream of the river. Hence, the cumulative effect of the glacier or snowmelt and channel erosion may exceed the effect of rain blown washouts on the suspended sediment concentration at the Port du Scex station. It is found that the ARMAX model results are satisfactory and can be suggested for further application.
