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Koleksiyondaki öğeler
- MakaleAçık Erişim2025Scopus SJRQ1The First Surgery Experienced Through Virtual Reality: A Knee Surgery Case Report
Aydin, Aydanur; Menekşeoğlu, Ahmet Kıvanç; Öner, Kerim; Ertürk, Engin
The decision to undergo surgery and the significance of the operating theater environment are influenced by several factors, which vary from person to person. Negative perceptions of the operating room environment can influence the decision to undergo surgery and the process of treatment. Virtual reality (VR) technology offers the potential to alter individuals' environmental encounters through the provision of diverse environmental perceptions. This case study evaluates the results of a VR simulation applied during surgery to an individual with no previous surgical experience. A male patient scheduled for arthroscopic meniscus surgery was the subject of a VR simulation. The patient's perception of the simulated environment was transmitted through VR goggles from the time he entered the operating room until he left. However, the VR application was terminated during the administration of anesthesia, and no premedication was administered to the patient. The VR application included nature walks in various regions, including forests, lakeshores, and meadows, accompanied by the sound of birds. Data were collected using a visual analog scale to assess pain levels and a walking test form. The patient, a 35-year-old male, is a high school graduate and is undergoing his first surgical procedure. The patient expressed concerns and fears regarding the decision to undergo surgery. The patient's preoperative anxiety was rated at 9 out of 10 but subsequently decreased to 1 out of 10 following the surgical procedure. The patient rated his satisfaction with the surgical experience as 9 out of 10. The patient did not require sedatives or analgesics during the intraoperative period or for the first 10 hours following the operation. The patient was successfully mobilized at the 15-hour mark following surgery. The patient was highly satisfied with the application. The utilization of VR during surgical procedures has the potential to reduce the necessity for premedication and enhance postoperative compliance among patients.
AtıfScopus1WoS1OpenAlex1
İncele - MakaleAçık Erişim2024Scopus SJRQ3Noise as a physical risk factor in furniture industry machines
Yasar, Sekip Sadiye; Komut, Osman; Yasar, Mehmet; Fidan, Muhammed Said
This study aimed to determine the risk level of noise, which is an important physical risk, in small and medium-sized furniture industry enterprises. The noise levels of the circular sawing machines, edge banding machines, and mitre cutting machines, which are among the main processing machines of the sector, were measured. The study was carried out in 32 furniture businesses. The possible risks of noise on the operators of the machines in question and other employees were evaluated. Noise level measurements were made with the help of TESTO 815 measuring device. Dunnett’s T3 test was used to detect differences in noise levels for machine operators and other employees. It was determined that the edge banding machine does not pose an occupational health and safety risk in terms of noise risk factors. However, the mitre cutting machine and the circular sawing machine pose a risk for the machine operator in active production by creating noise above the established exposure limit value. The mitre cutting machine carries the same risk for the machine operator when it is in operation but in passive production. The results revealed the need for personal protective equipment for machine operators for mitre cutting and circular sawing machine.
AtıfScopus2WoS1OpenAlex3İncele - MakaleYalnız künye2003Scopus SJRQ4Mineralogy and chemistry of biotites from Eastern Pontide granitoid rocks, NE-Turkey: Some petrological implications for granitoid magmas
Aydin, F.; Karsli, O.; Sadiklar, M.B.
The Eocene Zigana Granitoid in the northern zone and the Middle-Upper Eocene Dolek and Saricicek Plutons in the southern zone of the Eastern Pontides (NE-Turkey) consist of different rock series ranging in composition from intermediate to felsic compositions containing from <1% to 9% of biotite. The biotites are Mg-rich (XFe = Fe2+/Fe2+ + Mg) = 0.28 - 0.49) in the southern zone plutons and Mg- to Fe-rich (XFe = Fe2+/Fe2+ + Mg) = 0.33 - 0.78) in the northern zone pluton. They coexist with K-feldspar, plagioclase, quartz, amphibole, pyroxene, low titanium magnetite, minor ilmenite titanite. Biotites have been buffered by the Ni-NiO. The plutons equilibrated under low oxygen fugacities (LogfO2) ranging from -16.01 to -20.23 bars for Dolek and Saricicek, and -16.70 to -17.90 bars for Zigana. EPMA indicate that the composition of biotite is related to the mineral assemblages of Dolek, Saricicek and Zigana biotites as a consequence of chemistry of the magma and the physical conditions during crystallization. The biotite compositions were used to discriminate the tectonic setting of the plutons. The intrusions appear to be related to calc-alkaline to high-K calc-alkaline orogenic suites. Furthermore, Mg(6)-Fetot substitution has played a significant role during the crystallization of the biotites.
AtıfScopus37OpenAlex33İncele - MakaleAçık Erişim2025Scopus SJRQ2Investigation of virulence factor genes and biofilm formation of antibiotic resistant clinical E.coli isolates
Mumin, Yahye Mohamud; Yüksel, Gamze; Özad Düzgün, Azer
Purpose: The aim of this study is to investigate the antibiotic sensitivity, presence of virulence genes and biofilm formation capacity of 90 clinical E. coli isolates. Methods: The presence of virulence genes in E. coli isolates were investigated by PCR. Ninety clinical isolates of E. coli were subjected to biofilm quantitative analysis using the semi-quantitative crystal violet staining method. Results: it was observed that the isolates were resistant to quinolone, cephalosporin, aminoglycoside, carbapenem and penicillin group antibiotics. The presence of virulence factor genes were observed in a total of 86/90 E. coli. The highest rate of fim (92.2 %) virulence factor gene was detected in the strains. Afa, pap, cnf, sfa, hly were detected in 30 %, 13 %, 13 %, 3.3 %, 2.2 % respectively. Also, 13 different virulence factor gene patterns were determined in 90 E. coli isolates. Of the 90 E. coli isolates whose biofilm-forming capacities were evaluated, 42 were found to have biofilm-forming capacity. Of these 26 (28.8 %) the weak, 12 (13.3 %) moderate and 4 (4.4 %) strong biofilm-forming. Also, statistical analysis was performed to investigate the relationship between virulence factor genes and biofilm formation, and none of the 7 genes analyzed showed a significant relationship with biofilm formation. Conclusion: since pathogenic E. coli is an important public health problem, investigating antibiotic resistance, virulence factor genes and biofilm formation in bacterial pathogens is important for better treatment options.
AtıfScopus4WoS4OpenAlex4İncele - MakaleAçık Erişim2024Determination of University Students’ Preventive Attitudes for Lung Cancer and Healthy Life Awareness and The Influencing Factors; [Üniversite Öğrencilerinin Akciğer Kanserinden Korunmaya Yönelik Tutum ve Sağlıklı Yaşam Farkındalıkları ile Etkileyen Faktörlerin Belirlenmesi]
Demir Doğan, Melike
Objective: This study was conducted to determine the attitudes of university students towards lung cancer screening and healthy lifestyle and the factors affecting these attitudes. Material and Method: In this descriptive cross-sectional study, data were collected from 295 students between September 2022 and February 2023 using personal information form, Healthy Living Awareness Scale, and Health Belief Model Scale for Lung Cancer and Screenings. Results: It was observed that the perception of sensitivity and perception of obstacle subscales of the Health Belief Model Scale for Lung Cancer and Screenings were higher in males than females, and those with extended families had higher perception of violence and perception of obstacle than those with nuclear families. Perception of sensitivity and perception of violence decreased as general health status improved. Sensitivity perception was higher in smokers compared to non-smokers. Health motivation was higher in non-smokers than smokers. In addition, perception of barrier was higher in alcohol consumers compared to non-consumers. As the awareness of healthy living increased, the perception of violence and perception of barrier subscales of the health belief model of lung cancer orientation decreased. Conclusion: Consequently, it was determined that the students perceived lung cancer screening as beneficial, but they were not sensitive enough to have screening. The barrier perception related to screening was low, the health motivation was high and the severity perception was moderate.
- Kitap BölümüYalnız künye2025Foundational Education of Primary-Level Refugee Students: Advancing Fundamental Subject Knowledge
Semercioğlu, Muhammed Serhat; Akçay, Ahmet Oğuz
This book comprehensively explores the educational experiences of refugee students in primary schools, specifically addressing literacy, mathematics, and science skills through innovative teaching methods, including artificial intelligence, coding, and drama-based etc. approaches. Embracing a skill-based learning, the book is enriched with practical applications designed to enhance essential skills among refugee learners effectively. Drawing upon the extensive expertise of contributing authors, each chapter provides in-depth analyses of various dimensions of refugee education, offering valuable insights into targeted pedagogical strategies. Chapters conclude with illustrative activities specifically designed for refugee students, accompanied by detailed evaluations of their outcomes. These activities are not merely theoretical; they are purposefully structured to ensure applicability and adaptability within diverse global educational contexts. This book serves as an essential resource for teacher candidates, educators, researchers, and academics specializing in refugee education and general pedagogy, combining rigorous theoretical perspectives with actionable, real-world strategies.
- MakaleAçık Erişim2025Scopus SJRQ1Characterization of thermal, chemical, mechanical, and fatigue behavior of 3D printed ABS-based elastomeric blends: ABS/EVA and ABS/TPU
Kuleyin, Hamdi; Budak, Selahattin; Yasan, Ömer Barışkan; Gümrük, Recep
The polymer blending method is widely used to obtain balanced mechanical properties and structural performance in many engineering applications. This study investigates the influence of Ethylene-Vinyl Acetate (EVA), and Thermoplastic Polyurethane (TPU) composition ratios on the thermal, chemical, viscoelastic, mechanical, and fatigue life behavior of Acrylonitrile-Butadiene-Styrene (ABS) based elastomeric blends. For this purpose, structural and mechanical properties of the blend material depending on their composition ratio were carried out through a series of characterization analyses, and tensile and fatigue tests. The findings indicated that ABS/EVA and ABS/TPU blends formed an immiscible structure. In addition, it was determined that the storage modulus of the blend with 10 % TPU improved because of the presence of new absorption peaks in the structure. The mechanical properties such as elastic modulus, yield strength, and ultimate tensile strength decreased concerning neat ABS with an increase in the EVA and TPU composition ratio for blend materials. However, the elongation to break was achieved approximately 6 times increasing with an increase in the TPU ratio for ABS/TPU blends. It was determined that the fatigue strength value in ABS/EVA and ABS/TPU blends decreased with the decrease in ABS composition ratio in the blend system. However, it was found that fatigue life improved by 25 % compared to ABS at low-stress amplitude for 10 % TPU additive. Finally, it can be revealed that the ABS-based elastomeric blends can be used to obtain desired properties according to their composition ratios for different applications.
AtıfScopus20WoS20OpenAlex20İncele - MakaleAçık Erişim2025Scopus SJRQ1Invisible Warriors in the Struggle Against Cancer: Social Support and Spiritual Care—A Phenomenological Study on Patient Experiences †
Özmaya, Esma; Uzun, Sevda
Objective: The aim of this study is to examine the effect of social support on the mental state of cancer patients using a phenomenological approach. Materials–Methods: In this study, a phenomenological research orientation was used, and semi-structured in-depth interviews were conducted with 14 people diagnosed with cancer living in a province in central Turkey. The criterion sampling method, one of the purposeful sampling methods, was used for the sample group. The interviews continued until data saturation was achieved, and all interviews were recorded and later transcribed verbatim. The data were analyzed using thematic analysis, and the study was conducted and reported according to the COREQ checklist. Results: Two categories (effects of cancer and needs of the cancer patient (invisible components)) and five themes (psychological effects, social effects, physical effects, social support, and spiritual care) were identified in the analysis of the data. Conclusions: It has been determined that individuals are affected by cancer mentally, physically, and socially, and have difficulty coping. In particular, it has been found that social support and thinking about the purpose of life, supporting hope, and self-acceptance are quite important in increasing individuals’ spirituality.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ2Assessing Internalized Beliefs: Psychometric Evidences for the Pathogenic Belief Scale in Turkish Culture
Türkkan, Tuğba; Odacı, Hatice; Kaya, Feridun
This study was conducted to test the reliability and validity of the Pathogenic Belief Scale (PBS) on adult individuals. Participants consisted of 299 adults, including 189 (63.2%) females and 110 (36.8%) males, with a mean age of 21.16 years (SD = 3.68). Personal Information Form, Pathogenic Belief Scale-R, Cognitive Distortions Scale, and Dysfunctional Attitude Scale were used as data collection tools. The three-dimensional structure of the PBS was confirmed by confirmatory factor analysis on the Turkish sample (χ2 = 204.990, df = 186, χ2/df = 1.102, comparative fit index = 0.997, normed fit index = 0.997, standardized root mean square residual =.058, and root-mean-square error of approximation =.019 (90% confidence interval [.001,.032]). Factor loadings were found to be between.470 and.761. The analyses also showed that the internal consistency reliability coefficients were at a quite good level for the undeserving dimension (α =.874, ω = 0.875), the cannot rely on others dimension (α =.794, ω = 0.799), and the interpersonal guilt dimension (α =.847, ω = 0.857). The Turkish version of the PBS is a valid and reliable tool that can be used to evaluate the pathogenic beliefs of individuals. The research results were discussed, and certain inferences were made for the future in line with the limitations.
AtıfScopus3WoS3OpenAlex3İncele - MakaleAçık Erişim2025Scopus SJRQ2Microencapsulation of Caucasian blueberries (Vaccinium arctostaphylos L.) anthocyanins: Colour stability in varying storage conditions
Girgin, Serpil; Üçüncü, Osman; Baltacı, Cemalettin; Muslu Aykoç, Ayşe
The aim of this study was to investigate the extraction of anthocyanins from the fruits of Caucasian blueberry (Vaccinium arctostaphylos L.) and examine the colour stability of anthocyanins encapsulated through spray drying in model systems. The trials were conducted to determine the optimal conditions for anthocyanin extraction using an ultrasonic water bath at temperatures of 25, 50 and 75°C. The ideal anthocyanin extraction occurred at 25°C using 100% acetone in an ultrasonic bath for 15 min at 35 kHz. Anthocyanin concentrations were evaluated using the pH differential method. The extracted anthocyanins were encapsulated through spray drying with maltodextrin as the encapsulating material. The encapsulation efficiency was 80.4 ± 0.20%, and the anthocyanin retention rate was 83.0 ± 0.76%. The coloured capsules were added to model systems with pH values of 4.50, 5.00, 5.50 and 6.00. The colour values (L* 50.16 ± 0.05, a* 4.08 ± 0.04, b* −9.35 ± 0.01, H° 293.57 ± 0.15, C* 10.20 ± 0.03) were measured during varying storage conditions. The results showed, that colour loss began on the fifth day and this was accelerated with higher temperatures and pH values. It was found that encapsulation significantly preserved the stability of the blue colour and the loss of the blue colour followed first-order reaction kinetics. The study showed that the blue colour of microcapsules was best preserved at pH 5.00 at 25°C. In this case, the measured total colour change (∆E) was 5.86, the activation energy (Ea) was 37.64 kJ/mol, and the half-life (t1/2) was determined to be 19.08 days.
AtıfScopus4WoS4OpenAlex3İncele - Kitap BölümüYalnız künye2025Nanotechnological Green Synthesis and Its Impact on Plant Science
Altuner, Elif Esra; Bozbeyoğlu, Pınar; Tekeli, Yener; Sen, Fatih
Nanotechnology is a multidisciplinary field that manipulates materials at the nanoscale, typically between 1 and 100 nanometers. It bridges various disciplines, including physics, chemistry, biology, engineering, and materials science, creating materials with unique properties that classical theories cannot predict. Nanotechnology is central to advancements in energy, medical therapies, environmental solutions, and electronics. Nanotechnology's ability to create more efficient energy storage systems, such as high-capacity batteries, and its potential to revolutionize healthcare by enabling personalized medicine further demonstrate its vast impact. These innovations offer solutions to pressing issues like clean energy, health care, and ecological preservation. This chapter focuses on green synthesis methods in plant science, highlighting environmentally friendly techniques for producing nanomaterials. These sustainable methods not only contribute to eco-friendly agricultural practices but also promote environmental conservation and sustainability in the field of nanotechnology.
AtıfScopus5OpenAlex3İncele - MakaleYalnız künye2008Scopus SJRQ3Nutrient value of some lucerne cultivars based on chemical composition for livestock
Yolcu, Halil; Dasci, Mahmut; Tan, Mustafa; Çomakli, Binali
This study was carried out to determine of nutrient contents of twelve lucerne cultivars in the highlands of Turkey. There were significant differences (p < 0.01) among the cultivars for crude protein (CP), neutral-detergent fiber (NDF), acid-detergent fiber (ADF). digestible dry matter (DDM), dry matter intake (DMI), relative feed value (RFV), total digestible nutrients (TDN), net energy-lactation (NEl), net energy-maintenance (NEm) and net energy-gain (NEg). Although Planet cultivar had the highest protein content (32.00 %). Kayseri cultivar is one of the lowest protein content (24.17 %) among the all cultivars. Neutral detergent fiber in cultivars ranged from 33.41 % (Seker cultivars) to 50.39 % (Kayseri cultivars). Average acid detergent fiber content for all cultivars was 34.31 %. Relative feed value in cultivars ranged from 104.78 % (Bilensoy-80 cultivars) to 185.03 % (Seker cultivars). The average TDN content was 56.89 %. Evaluating for this respect contents were the most quality Seker, Bilensoy and Savas cultivars among lucerne cultivars. In conclusion, Seker, Bilensoy and Savas cultivars among lucerne cultivars had better nutrient content than other cultivars.
AtıfScopus9WoS8İncele - MakaleYalnız künye2006Scopus SJRQ2Pre-eruptive conditions revealed by mega- and pheno-cryst compositions from the Quaternary Erzincan Volcanics, Eastern Turkey: Insights into the magma processes
Karsli, Orhan
Quaternary Erzincan Volcanics (QEVs) from the Erzincan Basin consist of mega- and pheno-cryst-bearing high-K calc-alkaline dome lavas. Fourteen nearly phenocrystic domes, with a range of basaltic-andesite, andesite, dacite and rhyolite compositions, were emplaced in the North Anatolian Fault Zone. The emplacement ages yielded by the unspiked K-Ar technique range from 102 to 140 ka. The andesitic domes (each less than 3 km in diameter) contain amphibole megacrysts. Amphibole compositions show a linear variation from ferro-edenite, edenite to pargasite from rhyolite to andesite. Pargasitic amphibole megacrysts scattered into the groundmass are very similar in composition to the microlites. All plagioclases are <An53 mol%. Oscillation types are An32-50 whose variations range from 10 to 16 mol% An and have 10-150 μm in thickness. Pre-eruptive conditions, calculated from mega- and pheno-cryst composition, using pyroxene and two oxide thermometers and the Al-in-hornblende barometer, ranged from 918 to 837 °C and 6.6 to 4.3 kbar for andesitic magma, 824-755 °C and 4.6-4.2 kbar for dacitic magma to 803-692 °C and 4.3-3.9 kbar for rhyolitic magma, which correspond to a depth of >10 km for storage region of the crust. The fO2 values vary from -14.25 to -15.35 log units which are plotted just below nickel-nickel oxide (NNO) buffers. The systematic decrease in thermobarometric results from andesite to rhyolite is consistent with a single magma reservoir moving upward through the crust followed by fractional crystallization. Textural and compositional relationships of mega- and pheno-crystic phases suggest that magma mixing, fluid input to the reservoir and fractional crystallization processes, with a small amount crustal contamination play key role in evolution of the QEVs.
AtıfScopus6OpenAlex7İncele - MakaleYalnız künye2008Scopus SJRQ2Examination and comparison of Mobile GIS technology for real time geo-data acquisition in the field
Döner, Fatih; Yomralioǧlu, T.
Scientific studies associated with land require large amount of data. The data is often collected during field studies with the use of pencil and paper based method. The method is labour-intensive and susceptible to recording and georeferencing errors during transcription. Recent advances in mobile computing, positioning and software now make it possible to bring field and office activities into a collaborative environment, thereby minimizing human errors and time delays. This paper assesses the use of Mobile Geographic Information Systems (MGIS) as an appropriate tool for geo-data acquisition applications. Firstly the computing, positioning, software and communication technology behind the system is presented. A Mobile Geographic Information System developed for field data acquisition based on the combination of Geographic Information Systems (GIS) and Global Positioning System (GPS) is described. Finally, the system is tested in two field studies to examine its effectiveness compared to traditional methods in terms of accuracy, cost and project completion time. The field studies demonstrate the noticeable gains in efficiency and cost saving achieved with the use of the MGIS technology, Results of the field studies verify that MGIS is very useful for georeferenced data acquisition applications.
AtıfScopus16OpenAlex16İncele - MakaleYalnız künye2009Scopus SJRQ1Thermal buckling load optimization of laminated skew plates
Topal, U.; Uzman, Ü.
In this study thermal buckling load optimization of laminated skew plates subjected to uniformly distributed temperature load is investigated. All of the laminates considered are assumed to have fully clamped boundary conditions, though the general boundary conditions may also be studied without any difficulty. The objective function is to maximize the critical temperature capacity of the laminated skew plates and the fibre orientation is considered as design variable. The first-order shear deformation theory is used in the mathematical formulation. Nine-node Lagrangian rectangular plate element is used for the finite element solution of the skew laminates. The temperature field is assumed to be uniform over the plate surface and varies in the thickness direction only. Modified feasible direction method (MFD) is used for the optimization routine. A program based on FORTRAN is used for the optimization problem. Finally, the effect of number of layers, skew angles, aspect ratios, width-to-thickness ratios and antisymmetric lay-up on the optimal designs is investigated and the results are compared.
AtıfScopus10WoS11OpenAlex11İncele - MakaleYalnız künye2008Scopus SJRQ1New chemical weathering indices for estimating the mechanical properties of rocks: A case study from the Kürtün Granodiorite, NE Turkey
Ceryan, Şener
The chemical weathering of rock proceeds by water-rock interaction. During weathering geochemically mobile elements, alkali and alkali-earth elements are easily leached from rocks, leaving the residual elements to combine with components from the atmosphere to form new minerals. No single, weathering index given in the literature fits the model of the process involved in chemical weathering outlined above. This study deals with the derivation of three new chemical weathering indices oy taking both chemical processes such as leaching and new mineral formation into account. The new indices are chemical leaching index (CLI), chemical weathering product index (CWPI) and total chemical weathering index (TCWI). These indices are applied to selected weathering profiles in the Kürtün granodiorite, NE Turkey, in order to estimate the effects of chemical weathering on the physico-mechanical properties of rock materials. The relative variation of the mechanical properties and TCWI display a statistically significant correlation. Besides, it is shown that TCWI and weatherability index, originally defined by Hodder (1984) can be used together to evaluate the effect of chemical weathering on the mechanical behaviour of rocks.
AtıfScopus48İncele - MakaleAçık Erişim2024Scopus SJRQ1Psychosocial dimensions of being a child in women’s shelters: A phenomenological study on the experiences of battered women – A case study from Türkiye’s Northern Region
Uzun, Sevda; Emirza, Elif Güzide
Background: Violence against women has numerous devastating effects. Exposure to violence not only impacts women but also affects their children both physically and psychosocially. Aims: The study aimed to evaluate the psychosocial problems of children living with their mothers in women’s shelters from the mothers’ perspective with a phenomenological approach. Methods: Utilizing the phenomenological research method, semi-structured in-depth interviews were conducted with 14 individuals in a women’s shelter in a province in northern Türkiye. The criterion sampling method, a purposive sampling technique, was employed to select participants. Interviews continued until data saturation was achieved. All interviews were audio recorded and then transcribed, and thematic analysis was applied to analyze the data. The study adhered to the COREQ checklist for reporting. Results: The data analysis revealed four main categories (effects of violence on the mother, actions taken to protect children from violence, effects of violence and staying in a shelter on the child, and psychosocial needs for the protection of the child’s mental health in the shelter) and 10 sub-themes (psychological effects, physical effects, social effects, domestic actions, organizational actions, psychological effects, physical effects, social effects, support system, and coping). Conclusion: The study concluded that violence significantly impacted the mental, physical, and social well-being of both women and children, posing challenges to their ability to cope with the aftermath. Women exerted considerable effort in protecting their children from violence, and they needed psychosocial support to ensure the well-being of their children’s mental health during their stay in shelters.
AtıfScopus1WoS1OpenAlex2İncele - MakaleAçık Erişim2024Scopus SJRQ1Uncovering the determinants of bottom-up CO2 emissions among households in Türkiye: Analysis and policy recommendations
Coruh, Emine; Bilgic, Abdulbaki; Cengiz, Vedat; Urak, Faruk
Amid escalating global concerns surrounding climate change, the transportation sector has garnered the attention of stakeholders. Double-hurdle censored models were employed in this study to elucidate the relationship between the probability of private fuel expenditure and expenditure levels and household characteristics to determine the factors contributing to household-based CO2 emissions. Remarkably, nearly two-thirds of the 38 factors examined contributed to the emitters, and almost all emitters were identified as statistically significant. This alarming situation underscores the importance of formulating family based green transformation policies. If successful, these policies can ignite transformative momentum. Consequently, understanding household transportation expenditure from a bottom-up perspective can provide invaluable insights into crafting a comprehensive set of top-line policy recommendations for innovation and marketing strategies in the transport and energy sectors. Measures such as incentivizing the adoption of electric vehicles through economic incentives, expanding public transportation networks, and implementing sustainable housing policies have immense potential to effectively reduce private fuel expenditure. When implemented holistically, these strategies can pave the way for a more sustainable and environmentally friendly future.
AtıfScopus9WoS8OpenAlex11İncele - Kitap BölümüAçık Erişim2025Ensuring Circularity through Outsourcing Decisions in Solar Photovoltaic Supply Chains
Erol, Ismail; Peker, Iskender; Benli, Tolga; Ar, Ilker Murat
Because solar photovoltaic (SPv) panels have seen such significant cost reductions in recent years, it has proven to be by far the most dynamic forms of renewable power generation. However, the transition from linear to circular is also crucial for building sustainability in SPv supply chains. The circular economy (CE) is appealing in part because of its ability to bring economic and environmental development objectives together to ensure sustainable production and consumption. To aid in the shift to a more circular economy, several circular-based strategies for various functions such as procurement can be developed. In this study, critical success factors (CSFs) to ensure circular outsourcing structure in SPv supply chains are identified and scrutinized. To achieve this, a multi-criteria-based methodology is proposed. The findings of this study argue that understanding the actual implications of not converting to circular outsourcing (C12) is the most significant cause CSF. This study also provides several implications.
- MakaleAçık Erişim2009Scopus SJRQ1Compositional variations, zoning types and petrogenetic implications of low-pressure clinopyroxenes in the neogene alkaline volcanic rocks of northeastern Turkey
Aydin, Faruk; Karsli, Orhan; Sadiklar, M. Burhan
Clinopyroxene phenocrysts and microphenocrysts in different series of the Neogene alkaline volcanic rocks from the eastern Pontides (NE Turkey) record various stages in the crystallization conditions and evolution history of the alkaline melt as well as its origin. Crystal chemical studies reveal that the clinopyroxenes in each rock series show strong textural and compositional similarities, which all reflect a common petrogenetic affinity. They have relatively high Mg-numbers (0.68-0.95), variable Al2O3 (1.3-9.6 wt%), low TiO2 (<2.7 wt%) and Na2O (<0.9 wt%) contents and low Al[6]/Al[4] ratios (mostly <0.25), suggesting relatively low-pressure crystallization conditions of the magma in the storage region. The pressures calculated for the clinopyroxenes in each series are nearly similar and vary in the range of 2.4-4.6 ± 0.9 kbars, which approximately corresponds to a crystallization depth of 7-14 ± 3 km. The analyses of the compositional trends of the clinopyroxenes indicate the following types of zoning: (i) oscillatory and sectorial zoning related to melt crystallization (i.e. rapid cooling and crystallization), (ii) oscillatory, reverse zoning related to the different crystallization paths under a variable fluid regime, (iii) normal zoning related to the differentiation and fractional crystallization of the magma. Based on the primitive mantle- and chondrite-normalized trace and rare earth element patterns, all clinopyroxenes have high abundances of incompatible elements (i.e. La, Ce) with negative high field strength element anomalies (i.e. Zr, Ti) and low Nb/Y (0.1-0.2), Th/Y (< 0.1) and Rb/Y (< 0.03) ratios, suggesting derivation from a similar source. Obtained textural and mineral chemical data, as well as whole-rock compositions, thus suggest that the clinopyroxenes may have started to crystallize from alkaline basaltic magma derived from a homogeneous lithospheric mantle enriched by an earlier subduction event. After this process, the alkaline magma, from which early clinopyroxenes crystallized, underwent a relatively low-pressure fractional crystallization process. This was in closed magma chambers at different levels of the crust (or within a volcanic conduit system devoid of interaction processes), shown by variations in the different crystallization paths and in the fluid regime of the melt during differentiation and ascent of the magma, in a post-collisional extensional tectonic regime which affected the eastern Pontides during the Neogene.
AtıfScopus12WoS9OpenAlex16İncele
