Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(77)
- Merdan, Mehmet(73)
- Duran, Celal(54)
- Ozdes, Duygu(50)
- Baltaci, Cemalettin(45)
- Kaygusuz, Abdullah(45)
- Kulakaç, Nurşen(39)
- Ashyralyyev, Charyyar(38)
- Karsli, Orhan(37)
- Demir, Selim(36)
- Öztürk, Serkan(36)
- Dokuz, Abdurrahman(35)
- Turan, Ibrahim(35)
- Araz, Onur(33)
- Kandemir, Raif(31)
- Sipahi, Ferkan(30)
- Topal, Fevzi(30)
- Kurt, Kemal(28)
- Peker, Iskender(28)
- Arslan, Mehmet(27)
- Baltacı, Cemalettin(27)
- Maden, Nafiz(27)
- Ozturk, Samet(27)
- Aydin, Aydanur(26)
- Vural, Alaaddin(26)
- Bayrakdaroglu, Serdar(25)
- Kurnaz, Muammer(25)
- Reis, Hatice Catal(25)
- Akar, Zeynep(24)
- Aydin, Faruk(24)
- Gücer, Mehmet Ali(24)
- Topal, Meryem(24)
- Yolcu, Halil(24)
- Yücel, Cem(24)
- Anaç, Halil(23)
- Kankal, Murat(23)
- Ürkek, Bayram(23)
- Aliyazicioglu, Yuksel(22)
- Günen, Mehmet Akif(22)
- Tuncer, Metin(22)
Yayınlar
- 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.
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İncele - 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.
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İncele - 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 - 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 Erişim2025Scopus SJRQ1Kurtun Dam oscillate characterization with landslide possible effect detection using InSAR observations
Celik, Fatih; Sanli, Fusun Balik; Celik, Kemal; Celik, Ayse
Observing and analyzing areas prone to landslides is crucial due to the extensive destructive capacity of landslides. To monitor landslide activities across diverse areas, remote sensing data and image processing methods are employed. This study proposes a method that integrates Multi-temporal Interferometric Synthetic Aperture Radar and advanced temporal tracking technologies to intensify surveillance of the Kurtun Dam and its valley. According to Sentinel-1 A data, the net displacement rates of the dam crest varied between − 12 and 2 mm/year (LOS). InSAR technology surveys the entire dam catchment area, detecting critical infrastructure such as slopes, spillways, and access roads. The crest of the Kurtun Dam experiences oscillatory deformation during filling activities, but the lateral slopes and downstream abutment remain stable. As reservoir water levels rise, the dam structure exhibits downstream deformations, whereas declining water level results in upstream displacements. Monitoring points located the opposite Ozkurtun settlement and within the reservoir area, both facing the dam, exhibited displacement rates of up to -50 mm monthly. In regions susceptible to landslides, the greatest annual displacement rates were observed to be -54 and − 127 mm/year. This study suggests that integrating 3D modeling with InSAR technology into dam monitoring systems can significantly enhance their effectiveness. At Kurtun Dam and other crucial locations within the catchment area, the integrated approach combined with topographic monitoring, ensures reliable landslide detection and analysis. By advancing monitoring technology for embankment dams, this strategy prioritizes safety and structural integrity assessments.
AtıfScopus1WoS1OpenAlex2İncele - Kitap BölümüYalnız künye2025A theoretical framework of renewable energy financing
Soydas, Safak Sonmez
The renewable energy sector is an area that has received increasing attention in recent years and has significant growth potential worldwide. Factors such as limited traditional energy sources, environmental concerns, and climate change encourage using renewable energy sources. In this context, financing renewable energy companies has also gained great importance. Financing is a fundamental requirement for the implementation and expansion of renewable energy projects. However, the fact that renewable energy projects are generally high-cost and have long payback periods makes financing these projects difficult. Therefore, research on the financing of renewable energy companies is extremely important to understand and support the development of the sector. This study intends to ensure a theoretical viewpoint on the financing of renewable energy companies. The study will evaluate the general situation of the renewable energy sector, emphasize the importance of financing, and go over the impression of divergent financing sources on companies' growth strategies. Additionally, recommendations will be presented on the financing challenges faced by renewable energy companies and how these challenges can be overcome.
- Kitap BölümüYalnız künye2025Applying RATMI (Ranking by Alternatives Trace to Median Index) for Ranking Countries Based on Sustainability Performance
Simsek, Ahmet Bahadir; Simsek, Aybala
Today, global problems such as climate change, resource depletion and social inequality motivate the need for tools that can be used to measure the sustainability performance of countries. In this section, a new MCDM approach, RATMI (Ranking by Alternatives Trace to Median Index), is proposed with this motivation. RATMI uses trace and median similarity techniques to provide a balanced and accurate ranking as the median minimises the effect of outliers. In this chapter, the RATMI method is used to assess the sustainability performance of 157 countries for the period 2016-2020 on the basis of economic, social and environmental dimensions. The contributions of this study include the potential to promote RATMI as an effective tool for sustainability assessment of countries, identify role models, and inform policymakers on the development of sustainability strategies at the global level. This practice not only advances the literature on MCDM in sustainability assessments, but also provides a practical framework to guide future policy and research aimed at promoting sustainable development.
AtıfOpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ3Cosmetological potential of the essential oil from the aerial parts of Rubus sanctus Schreb.: Enzymatic inhibition, antibacterial properties, and chemical composition
Yıldırım, Aybeniz; Celep, İnci Kurt; Gül, Abdulkadir
Recently, skin care products and cosmetic preparations with herbal ingredients have attracted considerable interest from the public. Therefore, the cosmetic industry is investigating natural products like essential oils and extracts. This study aimed to determine the anti-aging effects of the essential oil obtained from the aerial parts of Rubus sanctus Schreb. (RsEO), as well as to reveal its chemical composition and investigate its antibacterial activity. The chemical composition of RsEO was determined by using GC-MS. The anti-aging activity of RsEO was evaluated by in vitro studies of anti-collagenase, anti-elastase, anti-tyrosinase, and anti-hyaluronidase activities. The antibacterial potential of RsEO was investigated by the agar-well diffusion method against Pseudomonas aeruginosa, Staphylococcus aureus, Enterococcus faecalis, and Escherichia coli. RsEO showed significant inhibition against collagenase, elastase, hyaluronidase, and tyrosinase with IC50 values of 80.46, 77.85, 72.71, and 82.71 μg/mL, respectively, and when compared with the positive controls epigallocatechin gallate (IC50: 38.91 μg/mL for collagenase, IC50: 38.91 μg/mL for elastase), tannic acid (IC50: 26.95 μg/mL for hyaluronidase), and kojic acid (IC50: 28.74 μg/mL for tyrosinase), the activities were found to be close. It was determined that the major components of RsEO were pentadecanal (8.88%), dodecanoic acid (7.86%), nonanal (4.32%), and octadecanal (4.08%). RsEO showed moderate antibacterial activity (inhibition zones between 10 and 15 mm) against the tested bacteria compared to ampicillin. This study demonstrated that RsEO is a natural product that has the potential to serve as a promising anti-aging and antibacterial therapeutic agent due to the synergistic effect of its constituent components.
AtıfScopus3WoS3OpenAlex4İncele - MakaleAçık Erişim2025Scopus SJRQ1DSCIMABNet: A novel multi-head attention depthwise separable CNN model for skin cancer detection
Reis, Hatice Catal; Turk, Veysel
Skin cancer is a common type of cancer worldwide. Early diagnosis of skin cancer can reduce the risk of death by increasing treatment success. However, it is challenging for dermatologists or specialists because the symptoms are vague in the early stages and cannot be noticed by the naked eye. This study examines digital diagnostic techniques supported by artificial intelligence, focusing on early skin cancer detection and two methods have been proposed. In the first method, DSCIMABNet deep learning architecture was developed by combining multi-head attention and depthwise separable convolution techniques. This model provides flexibility in learning the dataset's local features, abstract concepts, and long-term relationships. The DSCIMABNet model and modern deep learning models trained on ImageNet are proposed to be combined with the ensemble learning method in the second method. This approach provides a comprehensive feature extraction process that will increase the performance of the classification process with ensemble learning. The proposed approaches are trained and evaluated on the ISIC 2018 dataset with image enhancement applied in preprocessing. In the experimental results, DSCIMABNet achieved 84.28% accuracy, while the proposed hybrid method achieved 99.40% accuracy. Moreover, on the Mendeley dataset (CNN for Melanoma Detection Data), DSCIMABNet achieved 92.58% accuracy, while the hybrid method achieved 99.37% accuracy. This study may significantly contribute to developing new and effective methods for the early diagnosis and treatment of skin cancer.
AtıfScopus26WoS17OpenAlex26İncele - MakaleAçık Erişim2025Scopus SJRQ3Biological activities and phenolic content of endemic Helichrysum artvinense P.H. Davis et Kupicha (Asteraceae)
Acet, Tuba; Özcan, Kadriye; Kalmuk, Nursen Aksu
Species from the Asteraceae family have been extensively utilized in traditional medicine and as food sources for centuries. They also exhibit important biological activities attributed to their diverse array of phytochemical compounds. This research aimed to determine total phenolic and flavonoid contents of ethanol (EtOH) and methanol (MeOH) extracts of endemic Helichrysum artvinense and to reveal its antioxidant, antimicrobial enzyme inhibitory (α-glucosidase, α-amylase, and tyrosinase) and DNA protective activities. In addition, phenolic compound analyses were conducted using high-performance liquid chromatography (HPLC), establishing a correlation with the aforementioned biological activities. Based on the obtained data, the ethanol (EtOH) extract of the plant demonstrated greater prominence in terms of the screened biological activities. This extract was found to contain significant phenolic components, including epicatechin, chlorogenic acid, and luteolin. Consequently, it appears that the plant has the potential to serve as a natural alternative in both food and pharmacological applications. However, further studies to elucidate the mechanisms underlying the observed biological activities would be beneficial for the product development phase.
- Kitap BölümüYalnız künye2025Determination of Criteria for Selection of Candidate Sites for Temporary Debris Storage
Aktaş, Esra; Atmaca, Ediz
Disasters are difficult-to-control situations that have a profound impact on human life and result in significant material and moral losses. Disasters occur suddenly and frequently without warning, resulting in increased losses both during and after the situation. By making plans and taking the necessary precautions, natural and human hazards can be mitigated or avoided. Disaster management plans are being prepared all over the world, including various actions for disaster preparedness, disaster response and post-disaster. The importance and necessity of disaster management plans cannot be ignored in Türkiye, which has frequently encountered disasters from past to present and suffered great loss of life and property. Disaster management is the process by which society, all organizations, and resources work together to reduce or prevent harm before, during, and after a disaster. In this context, the study aimed to determine the criteria required for the selection of candidate areas for temporary debris storage sites, which are very important after the disaster. The importance weights of the criteria obtained through literature research were determined by soliciting expert opinions via the Analytic Hierarchy Process (AHP) method, which is one of the multi-criteria decision-making methods. The criteria with the highest importance weight are listed.
- MakaleYalnız künye2025Scopus SJRQ2Determination of selection-focused physicochemical properties in the local Eğrisap pear (Pyrus communis L.) clone grown in Rize
Kalkisim, Ozgun; Aydin, Mehmet Zahit; Ozdes, Duygu; Duran, Celal
Turkey, located within the Western Asia gene center, is a significant genetic center for many fruit species, including pears. Rize, a province in the Northeastern part of Turkey, is located within the Northeast Anatolia Region, which falls within the genetic center area where pears have undergone evolutionary development. This study aimed to identify promising local Eğrisap pear clone genotypes with superior traits and to introduce them into economic use. For this purpose, Rize province and its districts were surveyed, and fruit and leaf samples were collected from pre-selected Eğrisap pear clone types. These samples were subjected to pomological, morphological, and chemical analysis. The JMP 13 statistical software package was used to compare the Eğrisap pear clone types. According to the research results, the pomological and morphological traits of the clone types varied as follows: fruit weight (99.10–139.54 g), fruit width (54.52–65.41 mm), fruit length (57.58–68.83 mm), fruit stem length (50.75–59.50 mm), fruit stem thickness (2.36–2.91 mm), core width (5.15–7.55 mm), core length (9.73–14.51 mm), flesh firmness (3.61–7.13 lb), seed number (5.30–8.55), leaf width (45.80–60.04 mm), leaf length (64.53–82.37 mm), petiole length (37.04–60.99 mm), petiole thickness (0.83–1.20 mm), and soluble solid content (SSC) (9.10 %-16.0 %). Regarding chemical composition, the pH values of the clone types ranged from (3.78–4.22), titratable acidity (0.22 %-0.47 %), protein content (1.50 %-4.95 %), vitamin C content (0.92–2.28 mg/100 g), ash content (1.16 %-4.30 %), and total sugar content (9.66 %-17.28 %). Mineral element analysis of the local pear varieties revealed that iron content ranged from (0–14.7 µg/g), copper (2.90–9.12 µg/g), manganese (2.9–11.6 µg/g), magnesium (321.7–771.5 mg/g), zinc (0 µg/g), sodium (9.6–39.6 µg/g), potassium (5.43–14.50 µg/g), calcium (50.1–219.7 µg/g), cobalt (0.01–0.31 µg/g), cadmium (0–0.1 µg/g), and nickel (0.08–4.41 µg/g). Among the local Eğrisap pear clones grown in Rize, clone type 53 IYD 01 was identified as having the most superior quality criteria and chemical composition. Consequently, it is recommended that this clone type be introduced to producers for cultivation.
AtıfScopus1İncele - MakaleAçık Erişim2025Scopus SJRQ3Cardiovascular Findings and Effects of Caffeine on Experimental Hypothyroidism
Yuksel, Duygu; Ozmen, Ozlem
Background: Thyroid hormone deficiencies can disrupt organ functions, significantly impacting the cardiovascular system. Recently, the effects of thyroid hormones on the heart have garnered increased attention. However, most studies are conducted on humans using clinical data, while cellular-level and experimental studies remain limited. Objective: This study aimed to investigate the cardiovascular implications of hypothyroidism and evaluate the impact of caffeine on cardiac health in rats induced with hypothyroidism using propylthiouracil (PTU). Methods: The study involved 60 rats divided into six groups. Group 1 served as the untreated control. Group 2 received PTU for two months to induce hypothyroidism. Group 3 received PTU for one month, followed by caffeine for one month. Group 4 received caffeine for two months. Group 5 received both PTU and caffeine simultaneously for two months. Group 6 received PTU for one month, followed by one month under normal conditions. Results: During necropsy, normal thyroid glands were observed in Groups 1, 4, and 6, enlarged thyroids in Group 2, and smaller thyroids in Groups 3 and 5. Microscopic examination revealed varying thyroid histologies: Group 2 showed significant epithelial cell proliferation and absent colloid, while Groups 3, 5, and 6 had altered yet colloid-containing acini. Macroscopic inspection of hearts appeared normal across all groups. However, histopathological examination revealed significant hyperemia and microhemorrhages in Group 2, contrasting with normal findings in other groups. Immunohistochemical analysis indicated reduced cardiac troponin expression in Group 2, while other groups maintained prominent expression. Additionally, Group 2 displayed increased serum TSH levels and decreased T3 and T4 levels. Conclusion: The findings suggest that administering caffeine alongside or after PTU treatment in rats with experimentally induced hypothyroidism may ameliorate thyroid and cardiac irregularities. This study indicates caffeine's potential in mitigating the adverse effects of hypothyroidism on thyroid and heart health.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2025Scopus SJRQ2Factors Affecting the Mental Health of Youth After the Great Kahramanmaras Earthquake Disaster
Türkkan, Tuğba; Hatipoğlu, Ertuğrul
This study aims to determine the extent of the psychological effects of the Kahramanmaraş earthquake disaster, which is widely regarded as one of the most significant disasters of the century, on young people based on their direct or indirect exposure and to investigate the impact of these issues on life satisfaction. Data were collected from 337 individuals who were continuing their advanced education at a state university in Turkey, using a demographic information form, life satisfaction scale and Depression Anxiety Stress Scales 21. In the analysis of the data, t-test, Pearson correlation test, ANOVA and multiple regression analysis were employed. The results of the analyses indicated that as the intensity of exposure to disaster news increased, the stress, depression, and anxiety levels of the participants also increased. Individuals who experienced the earthquake personally and participated in volunteer aid activities demonstrated higher depression and anxiety scores and DASS21 scale total scores than those who did not directly experience the earthquake but followed the news and those whose relatives experienced the earthquake. There was no significant difference in the intensity of following earthquake news between men and women among the participants. However, it was determined that the intensity of following earthquake news from media and social media tools positively and significantly predicted the life satisfaction of the participants. These findings provide insights for future mental health interventions and social work practices for young people affected by the earthquake.
AtıfScopus4WoS6OpenAlex6İncele - BildiriYalnız künye2025Hybrid CNN-LSTM Framework for Automated Detection of Pediatric Heart Murmurs
Al-Taib, Asmaa Abduh; Ture, Hayati; Aslan, Muhammed Emin
This study presents a comprehensive deep learning framework for automated heart murmur detection from phonocardiogram (PCG) signals to address the subjective limitations of cardiac auscultation. Using the CirCor DigiScope dataset of 5,272 pediatric heart sound recordings from 1,568 subjects, we systematically evaluated multiple approaches including traditional machine learning models (Logistic Regression, SVM, KNN, Decision Tree, AdaBoost), basic deep learning architectures (standalone CNN and LSTM), and advanced transfer learning models (DenseNet121, EfficientNet B0/B1/B2, ResNet 50/101, MobileNet V2/V3, GhostNet, AttentionCNN). Our hybrid CNN-LSTM architecture combines mel-spectrogram spatial feature extraction with temporal sequence modeling using 128 traditional audio features and comprehensive preprocessing with data augmentation. The CNN-LSTM model achieved superior performance with 84.6% accuracy, 0.84 F1-score, 0.748 precision, and 0.800 recall, significantly outperforming traditional methods (best SVM: 0.716 F1-score) and advanced architectures (best DenseNet121: 0.72 F1-score), demonstrating robust classification with 0.879 AUC. Results indicate that hybrid deep learning architectures effectively automate cardiac auscultation, providing objective diagnostic tools with potential for improved healthcare accessibility and clinical decision-making.
- MakaleAçık Erişim2025Scopus SJRQ3MOHO DEPTH IN THE SOUTH CASPIAN BASIN ESTIMATED FROM GRAVITY FIELD DATA AND LOCATION OF HYDROCARBON RESERVOIRS
Kadirov, F.A.; Safarov, R.T.; Gahramanov, M.R.; Maden, N.M.
The South Caspian Basin (SCB) is a geologically complex and diverse region of significant scientific interest due to its hydrocarbon resources and intricate crustal structure. This study provides an updated interpretation of the SCB’s crustal configuration using gravity-derived data, with particular emphasis on delineating Moho depth and the influence of its variations on petroleum basins. The crustal structure of the basin is assessed using Bouguer gravity anomalies, incorporating terrestrial and marine gravity measurements, and processed with spectral analysis methods. Power spectrum analysis was applied to estimate the depths of subsurface mass distributions affecting the gravity field, enabling separation of regional and residual anomalies and providing an initial reference depth of Moho. These results served as input for Parker–Oldenburg inversion, an iterative Fourier-based technique used to model the Moho surface by minimizing discrepancies between observed and calculated gravity anomalies. The integrated approach reveals substantial lateral variations in Moho depth, ranging from approximately 42 km in the Absheron–Prebalkhan zone to about 29 km in the central SCB. Analysis of spatial correlations indicates that oil and gas reservoirs are primarily located in areas where the Moho surface is deeper and along gradient zones marking abrupt depth changes. These findings enhance understanding of the complex tectonic evolution of the SCB and provide valuable constraints for predicting potential hydrocarbon locations in this tectonically active and data-scarce region.
- MakaleAçık Erişim2025Scopus SJRQ1Investigation of the relationship between attitudes toward migration and life satisfaction of nurses working in Turkey
Tuncer, Metin; Tuncer, Gülsüm Zekiye; Turan, Şeyma; Khorshtd, Leyla
Background: Nurse migration contributes to the nursing shortage in developing countries. Understanding nurses' attitudes toward migration and related factors is crucial for policy-making and healthcare workforce planning in Turkey. Aim: This study aimed to investigate the relationship between nurses' attitudes toward migration and their life satisfaction in Turkey. Methods: The study included working nurses with social media accounts on a social media platform in Turkey who followed nursing-related content. A sample of 423 nurses completed an online survey. Independent variables included nurses' sociodemographic characteristics and inclination toward migration, while dependent variables were life satisfaction and migration attitude levels. Data were collected via an online questionnaire, incorporating the Brain Drain Attitude Scale (BDAS) and Life Satisfaction Scale (LSS), between April and May 2023. Results: The study found a negative correlation between nurses' life satisfaction levels and their attitudes toward migration (r = −.349, p <.001). Nurses dissatisfied with their profession (F = 6.575, p <.05), lacking professional support (F = 8.641, p <.05), and lacking social support (F = 6.307, p <.05) scored higher on the BDAS. Conversely, those satisfied with their profession (F = 31.455, p <.05), receiving professional support (F = 26.307, p <.05), and social support (F = 33.990, p <.05) scored higher on the LSS. Conclusion and implications for nursing: The study revealed that decreased life satisfaction among nurses in Turkey correlates with increased migration attitudes. These results underscore the need for strategies to enhance nurses' job satisfaction and support systems to mitigate migration tendencies. This study contributes valuable insights into the high inclination of Turkish nurses toward emigration.
AtıfScopus4WoS4OpenAlex4İncele - MakaleAçık Erişim2025Scopus SJRQ2Comparison of different animal milks on microbiological, physicochemical, sensory properties, and volatile component profile of Kefir
Meral-Aktaş, Hacer; Ürkek, Bayram; Aktaş, Haktan; Baltacı, Cemalettin; Çetin, Bülent; Şengül, Mustafa
In this study, the effects of cow, buffalo, ewe, and goat milk on the microbiological, physicochemical, sensory properties, and volatile component profile of kefir were examined during storage. Key microbial counts, including lactic cocci, lactic bacilli, and yeast, varied among kefirs, with lactic bacilli and lactic cocci decreasing over time, while yeast counts increased. The titratable acidity ranged from 1.12 to 1.16%, and pH values varied between 4.51 and 4.83. Sensory analysis showed that cow milk kefir received the highest consumer appreciation, while goat milk kefir was least favored. Notably, ewe milk kefir contained the highest benzoic acid content. Principal component analysis identified distinct clusters in the volatile profiles of the kefirs. Our results suggest that buffalo and ewe milk kefirs may be viable alternatives to cow milk kefir, with potential for consumer acceptance based on sensory properties.
AtıfScopus5WoS6OpenAlex7İncele
