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Koleksiyondaki öğeler
- DüzeltmeAçık Erişim2023Scopus SJRQ2Correction to: A note on linear non-Newtonian Volterra integral equations (Mathematical Sciences, (2022), 16, 4, (373-387), 10.1007/s40096-021-00427-z)
Güngör, Nihan
Unfortunately, some of the corrections were missed in the original version and the corrections are as follows: In Theorem 1, the highlighted text should be in italics Let (Formula presented.) be (Formula presented.) continuous. Then, the following statements hold: (1) (Formula presented.) for all (Formula presented.) ,(2) (Formula presented.) for any (Formula presented.) ,(3)If (Formula presented.) for all (Formula presented.) , then (Formula presented.) ,(4)The functionfis (Formula presented.) bounded on (Formula presented.) ,(5) (Formula presented.) [10, 15]. (Formula presented.) for all (Formula presented.) , (Formula presented.) for any (Formula presented.) , If (Formula presented.) for all (Formula presented.) , then (Formula presented.) , The functionfis (Formula presented.) bounded on (Formula presented.) , (Formula presented.) [10, 15]. For (Formula presented.) , let (Formula presented.). Take f be a function with arguments in A and values in B, and let (Formula presented.). Then the following relations occur: In Theorem 9, the highlighted text should be in italics Suppose that the following conditions are satisfied:(i)f is (Formula presented.) continuous on (Formula presented.) ,(ii) (Formula presented.) is (Formula presented.) continuous on (Formula presented.) and (Formula presented.). f is (Formula presented.) continuous on (Formula presented.) , (Formula presented.) is (Formula presented.) continuous on (Formula presented.) and (Formula presented.). The Original Article was corrected.
- MakaleAçık Erişim2022Scopus SJRQ2On the second order of accuracy stable difference scheme for integral type non-local elliptic source identification problem
Ashyralyyev, Charyyar
In this study, a source identification problem for elliptic differential equation with integral type non-local condition is discussed. The second order of accuracy difference scheme for elliptic non-local source identification problem is studied. Using spectral resolution of a self-adjoint operator, stability and coercive stability estimates for solution of difference scheme are established. Subsequently, difference scheme for an approximate solution of multi-dimensional boundary-value problem with integral type non-local and first kind boundary conditions is investigated for stability. Numerical results for 2D and 3D examples are illustrated.
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İncele - Kitap BölümüYalnız künye2023Gastronomic festival tours in Turkey: Motivations and expectations of tourists
Akyürek, Suat
The demand for gastronomy tourism has been increasing in recent years, and gastronomy tours and festivals are marketed as an important gastronomic product in meeting this demand. However, research on the motivation and expectations of tourists participating in gastronomy festivals are still not sufficient in the literature. In this study, it is aimed to determine the motivation and expectations of tourists who participated in the tours organized under the name of gastronomic festival tours. Face to face interviews were carried out with 23 tourists who participated in three different gastronomic festival tours arranged in Turkey. In the light of the findings, the motivations of tourists participating in gastronomic festival tours were evaluated within the scope of push and pull factors. Expectations of tourists from gastronomic festival tours were classified into five categories as general services, relations with other people, environmental conditions and internal expectations, which were especially for products/activities that are the focal point of the tours.
AtıfScopus3OpenAlex1İncele - MakaleAçık Erişim2023The Relevance of the Concept of Justice in Islamic Law to Contemporary Humanitarian Issues
Karimullah, Suud Sarim
This study explores the relevance of the concept of justice in Islamic law to complex and urgent contemporary humanitarian problems. Through the method of literature study with integrative and comprehensive literature analysis, this research conducts in-depth and structured investigations of existing literature to summarize and synthesize relevant views, arguments, findings, and thoughts. The results of the study stated that the concept of justice in Islamic law is a central aspect in Islamic religious teachings and has wide application in facing various humanitarian challenges today. Through a deep understanding of the concept of justice in Islamic law, societies can form solid moral views and act effectively to advance human rights, address economic disparities, facilitate peace, and respond to other humanitarian issues. This makes it possible to view the concept of justice in Islamic law not only as a religious aspect but also as a potential source of inspiration to build a more just and sustainable world for all humanity, whatever their religious or cultural background.
AtıfScopus12OpenAlex4İncele - MakaleAçık Erişim2024Scopus SJRQ1Sentiment analysis of financial Twitter posts on Twitter with the machine learning classifiers
Cam, Handan; Cam, Alper Veli; Demirel, Ugur; Ahmed, Sana
This paper presents a sentiment analysis combining the lexicon-based and machine learning (ML)-based approaches in Turkish to investigate the public mood for the prediction of stock market behavior in BIST30, Borsa Istanbul. Our main motivation behind this study is to apply sentiment analysis to financial-related tweets in Turkish. We import 17189 tweets posted as "#Borsaistanbul, #Bist, #Bist30, #Bist100″ on Twitter between November 7, 2022, and November 15, 2022, via a MAXQDA 2020, a qualitative data analysis program. For the lexicon-based side, we use a multilingual sentiment offered by the Orange program to label the polarities of the 17189 samples as positive, negative, and neutral labels. Neutral labels are discarded for the machine learning experiments. For the machine learning side, we select 9076 data as positive and negative to implement the classification problem with six different supervised machine learning classifiers conducted in Python 3.6 with the sklearn library. In experiments, 80 % of the selected data is used for the training phase and the rest is used for the testing and validation phase. Results of the experiments show that the Support Vector Machine and Multilayer Perceptron classifier perform better than other classifiers with 0.89 and 0.88 accuracy and AUC values of 0.8729 and 0.8647 respectively. Other classifiers obtain approximately a 78,5 % accuracy rate. It is possible to increase sentiment analysis accuracy with parameter optimization on a larger, cleaner, and more balanced dataset by changing the pre-processing steps. This work can be expanded in the future to develop better sentiment analysis using deep learning approaches.
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İncele - MakaleAçık Erişim2022Scopus SJRQ2Petrogenesis of post-collisional Middle Eocene volcanism in the Eastern Pontides (NE, Turkey): Insights from geochemistry, whole-rock Sr-Nd-Pb isotopes, zircon U-Pb and 40Ar-39Ar geochronology
Aydınçakır, Emre; Yücel, Cem; Ruffet, Gilles; Gücer, Mehmet Ali; Akaryalı, Enver; Kaygusuz, Abdullah
The debate about whether Eocene magmatism is considered to be post-collisional or subduction-related or not still continues. Here we offer new 40Ar-39Ar ad U-Pb zircon geochronology, mineral chemistry, bulk rock and Sr-Nd-Pb isotope geochemistry data obtained from the southern dike (SD) suite, in comparison with the northern dike (ND) suite, from the Eastern Pontides. The geochronological data indicate that the SD suite erupted between 45.89 and 45.10 Ma corresponding to the Lutetian (Middle Eocene). The magmas of the ND suite are characterised by slightly more alkaline affinity compared to the SD suite. The trace and rare earth element (REEs) content of the SD suite is characterised by large ion lithophile element (LILEs; Sr, K2O, Ba, Rb) enrichment and depletion of Nb, Ta, and TiO2 elements to different degree with high Th/Yb ratios, which indicate that the magmas forming the SD and ND suites were derived from lithospheric mantle sources enriched by mostly slab-derived fluids in the spinel stability field. The Sr, Nd and Pb radiogenic isotope ratios of the dikes support the view that the magma for the hydrous group (H-SD) was derived from a relatively more enriched mantle source than the other SD and ND suites. The ND suite and the anhydrous group (A-SD) display similar geochemical features characterised by moderate light earth element (LREE)/heavy rare earth element (HREE) ratios, while the H-SD group has respectively lower LREE/HREE ratios indicating higher melting degree. Detailed considerations of the alkalinity, enrichment and partial melting degree for the source of the studied volcanic rocks indicate that the magmas of the northern dike suite are characterised by slightly more alkaline affinity, whereas the magmas throughout the southern dike suite show increments in the enrichment rate and melting degree. In light of the obtained data and comparative interpretations, the geodynamic evolution and differences in petrogenetic character of the Lutetian magmas from both the northern and southern parts of the Eastern Pontides may be explained by different degrees of melting of a net veined mantle source initially metasomatized by mostly subduction fluids during asthenospheric upwelling due to fragmented asymmetric delamination in a post-collisional extensional tectonic environment.
AtıfScopus21WoS20OpenAlex22İncele - MakaleYalnız künye2023Scopus SJRQ1Interpretation of the tectonic structure of Gemlik Bay using magnetic data
Aktaş, Gülten; Hisarlı, Z. Mümtaz; Demirel, A. Sinan
The aim of this study was to determine the effects of the main faults and many small-scale faults and submarine structures within Gemlik Bay, on the middle strand of the North Anatolian Fault in the southeast of the Sea of Marmara. In order to produce a fault map for the study area and research tectonic structures, magnetic data were obtained using a cesium vapor magnetometer on a total of 30 profiles (340 km) with N-S and E-W orientation within the bay. Diurnal corrections were applied to obtain the necessary minimization of diurnal variations in the magnetic data. Heading correction and micro-leveling corrections were applied to remove small boat effects, and the reduction to the pole method was applied for greater differentiation of the magnetic data. Magnetic data were analyzed using advanced potential field processing techniques. Euler deconvolution technique was applied to define the extension and depth of the determined lineaments. Boundaries of structures in the region were determined using source edge detection, tilt derivative, the tilt angle of the total horizontal gradient amplitude (TAHG), and a novel edge detector based on the softsign function (SF) techniques. In order to reveal the tectonic evolution of Gemlik Bay, the structures obtained from the analysis results were interpreted and a fault map was produced. The results of the study identified the Armutlu Fault in the north, the Gemlik Fault in the east, the Zeytinbağı Fault and Mudanya Fault in the southwest and the Gençali Fault in the south within Gemlik Bay. These five essential faults significantly affected the region tectonically. These faults correlated well with the location of some previously-known major tectonic structures. Moreover, these important faults following the morphology of the bay indicate that Gemlik Bay was opened by a pull-apart basin mechanism.
AtıfScopus6WoS5OpenAlex8İncele - MakaleYalnız künye2024Scopus SJRQ1Petrogenesis of Late Cretaceous A-type plutonic rocks from the Eastern Pontides Orogenic Belt (NE Turkey): constraints from zircon U-Pb geochronology, zircon Lu-Hf and whole-rock Sr-Nd-Pb-Hf isotopes
Yücel, Cem; Aydınçakır, Emre; Kaygusuz, Abdullah; Arslan, Mehmet; Yi, Keewook; Jeong, Youn-Joong; Cicerali, Derya
The Late Cretaceous magmatic history of the Eastern Pontides Orogenic Belt (NE Turkey) was generally characterized by common I-type and lesser A-type plutons in varying size and composition. Of these, A-type plutons from the Şebinkarahisar (Giresun) area yield SHRIMP zircon U-Pb age of 77.36 ± 0.96 Ma. The rocks of these plutons display a wide range of SiO2 contents (53.63 to 70.96 wt.%) and Mg-numbers (6.2–32.19) with A-type affinities characterized by enrichment in K2O and Na2O, Ga, Zr, and strong negative Eu anomalies. They also show arc-type petrochemical features including enrichment of large-ion lithophile elements (e.g. Cs, K, Rb) and light rare earth elements (LaN/LuN = 6.27–15.61), but depletion in high strength field elements (e.g. Nb, Ta, Ti, and P). The (87Sr/86Sr)i ratios and ɛNd(i) values of the studied rocks are in the range of 0.705129 to 0.0705347 and −3.64 to −3.12, respectively, while bulk rock ɛHf(i) values are between 1.86 and 4.36. They are characterized by positive zircon ɛHf(i) (1.74 to 10.88) plotting between the chondrite and depleted mantle evolutionary line values. Our data combined with the previous studies suggest that the magmas, that formed the Late Cretaceous plutons, were generated in an extensional tectonic environment due to slap roll-back and trench ward migration of the subduction zone to the south. The generation of hybrid magmas forming the studied plutons is in response to the melts derived from a metasomatized lithospheric mantle source, a relatively deeper mantle source, and the juvenile crust along with the heat transfer and decompression. Multi-sourced magmas rise through the continental crust and reach the final composition by predominantly fractional crystallization processes.
AtıfScopus10WoS11OpenAlex10İncele - MakaleYalnız künye2023Scopus SJRQ3A barrier to participation in cervical cancer screenings: fatalism
Duru, Gökcem; Topatan, Serap
Cervical cancer is a significant disease affecting women’s health in terms of its incidence and is one of the most preventable cancers. However, participation in early cervical cancer-screening programs has been unsatisfactory for various reasons. In this descriptive, relationship-seeking study, we examined the relationship between fatalism tendency, an individual barrier to participation in early cancer screening programs, and women’s attitudes toward the early diagnosis of cervical cancer and undergoing the Pap smear test. Research data were collected between August 1, 2019 and December 1, 2019, in a city in northern Turkey from 602 women using a participant information form, the Attitudes Toward Early Diagnosis in Cervical Cancer Scale, and the Fatalism Tendency Scale. We found that fatalistic tendencies in women were a predictor of their attitudes toward the early diagnosis of cervical cancer (odds ratio [OR] = −0.64, β =.47, p <.001) and undergoing the Pap smear test (OR = 1.01, β = −.15, p <.001). Women with high fatalism tendencies had a more negative attitude toward the early diagnosis of cervical cancer and their participation rate in Pap smear screening programs was low. Therefore, nurses must consider women’s fatalistic tendencies and attitudes toward cancer when organizing educational and informational programs that encourage participation in cervical cancer screening.
AtıfScopus9WoS7OpenAlex11İncele - MakaleAçık Erişim2023Scopus SJRQ3On the Gaussian curvature of timelike surfaces in Lorentz-Minkowski 3-space
Mazlum, Sümeyye Gür
In this study, the various expressions of the Gaussian curvature of timelike surfaces whose parameter curves intersect under any angle are investigated and the Enneper formula is obtained in Lorentz-Minkowski 3-space. By giving an example for these surfaces, the graphs of the surface and its Gaussian curvature are drawn.
AtıfScopus3WoS3OpenAlex1İncele - MakaleAçık Erişim2022Scopus SJRQ2Neutrosophic QUALIFLEX based on neutrosophic hesitancy index for selecting a potential antivirus mask supplier over COVID-19 pandemic
Şahin, Rıdvan
In order to handle simultaneously the cardinal and ordinal information in decision-making process, QUALIFLEX (QUALItative FLEXible multiple criteria method) is a very well-known decision-making approach. In this work, we extend the classical QUALIFLEX method to neutrosophic environment and develop a neutrosophic QUALIFLEX (N-QUALIFLEX) method that uses the newly defined distance-based comparison approach. It is highly effective in solving multi-criteria decision problems in which both ratings of alternatives on criteria and weights of criteria are single-valued neutrosophic numbers (SVNNs), and their aggregated values are single-valued neutrosophic hesitant fuzzy numbers (SVNHFNs). A neutrosophic hesitancy index (NHI) of a SVNHN is introduced based on degrees of the truth-membership, indeterminacy-membership and falsity-membership, which is used to measure the degree of hesitancy of SVNHN. Considering the NHIS of SVNHFNs, we propose a distance-based comparison approach to determine the magnitude of the SVNHFNs. Then, we apply the comparison approach to define the concordance/discordance index, the weighted concordance/discordance index and the comprehensive concordance/discordance index that are steps of the developed N-QUALIFLEX. By taking all possible permutations of alternatives with respect to the level of concordance/discordance into account, we determine the order of alternatives in final decision. Finally, a practical example on antivirus mask selection over the COVID-19 pandemic is provided to present the effectiveness and applicability of the proposed method, and a comparative study is conducted to show the advantages of the proposed method over other existing methods.
AtıfScopus3WoS2OpenAlex4İncele - MakaleAçık Erişim2022Scopus SJRQ2Investigation of Yield and Quality Parameters of Some Local and Newly Registered Bread (hexaploid) Wheat (Triticum aestivum L.) Genotypes Under Rainfed Agricultural Conditions; [Untersuchung von Ertrags- und Qualitätsparametern einiger lokaler und neu registrierter (hexaploider) Brotweizen-Genotypen (Triticum aestivum L.) unter Regenfeldbaubedingungen]
Sirat, Abdulveli
Hexaploid bread wheat is an economically important crop grown worldwide. There is need to new breed cultivars to meet the needs of ever-growing populations. This study was carried out to determine the yield and quality traits of some newly bread wheat cultivars and locally popular wheat cultivars. The research was carried out at Siran-Gumushane (Turkey) during 2015–2016 and 2016–2017. A total of 24 bread wheat genotypes (14 commercial cultivars and 10 local genotypes) were used as plant materials in the study. The experiment was carried out in randomized complete block design with three replications. Duration of heading, plant height, spike length, number of seeds per spike, seed weight per spike, seed yield, thousand seed weight, hectolitre weight, protein percentage, zeleny sedimentation, and wet gluten percentage values were investigated in this study. Statistically significant different results were noted among some parameters according to the results obtained from the research. The maximum seed yields were obtained from Saraybosna, Ozcan, Tosunbey, Sakin, Sonmez-2001 and Altay-2000 cultivars. The maximum thousand seed weight was obtained from the Kate-A1 variety, while the Sakin variety stood out first in terms of zeleny sedimentation trait. It has been determined that Saraybosna, Ozcan and Sakin cultivars have high seed yield and have high quality under dry farming conditions. If these cultivars are used in regional conditions, bread wheat production quantity and quality will be increased.
AtıfScopus1WoS1OpenAlex2İncele - MakaleYalnız künye2023Scopus SJRQ2The Effect of Surface Roughness on Fatigue Life in AZ31 Magnesium Alloy
Karabudak, Filiz; Şüküroğlu, Ebru Emine; Şüküroğlu, Süleyman; Yeşildal, Ruhi
Magnesium alloys have excellent properties such as high specific strength, rigidity, good damping, electromagnetic shielding, castability, and machinability. However, corrosion, creep, and fatigue resistance are generally the properties that need to be improved. In this study, a hybrid coating was formed on AZ31 magnesium alloy with different surface roughness at different frequencies. In the hybrid coating, an oxide coating was first grown on the surface by the micro-arc oxidation method, and then, the epoxy coating was grown on this oxide coating by the dipping method. The characterization of the coatings was performed by XRD, SEM, and EDS analysis. Furthermore, the relationship between fatigue life and surface roughness was also discussed in this study. The fatigue life and strength of the coated samples were determined as a result of the tests performed on the fatigue device. It was concluded that the fatigue life and strength of hybrid coatings were much better compared to uncoated and single-layer coated samples.
AtıfScopus5WoS4OpenAlex4İncele - MakaleAçık Erişim2023Development of Zakat Distribution in the Disturbance Era
Faizin, Mu’Adil; Karimullah, Suud Sarim; Faizal, Bhismoadi Tri Wahyu; Lubis, Ihsan Helmi
With the growing number of publications on digital zakat, there is a pressing need for research on zakat management to develop general concepts that can serve as policy standards for zakat management practitioners and national zakat regulators. This research aims to provide insights into managing zakat in an easy, flexible, transparent, and targeted manner. The study employs field research methods, observing real events in society, and uses empirical legal research techniques with an interdisciplinary approach, incorporating sociological and ethnographic studies. The findings indicate that proper zakat distribution requires a deep understanding of its fiqh, grounded in shari'a texts and explored through both a linguistic approach (al-qowâid al-lughawiyyah) and an objective shari'a approach (maqâshid asy-syarî'ah). Furthermore, collecting zakat funds by national amil zakat agencies and institutions in Indonesia must adapt to contemporary times and technology, providing an alternative that facilitates muzakkī's in fulfilling their obligations.
AtıfScopus3OpenAlex5İncele - Derleme MakaleAçık Erişim2023Scopus SJRQ3Climate change in Türkiye and its impact on oncology nurses
Kaya, Afşin Ahmet; Aydin, Aydanur; Bağcivan, Gülcan
Climate change threatens human life and health by negatively affecting the basic components of health such as clean air, safe drinking water, nutritious food supply, and safe shelter. Türkiye is a country that is largely exposed to climate change with its cosmopolitan location, which is a bridge between Asia and Europe. Due to climate change, serious effects are seen in all sectors from energy to agriculture, from the economy to health. Climate change is defined as the most important global health threat of the next century, and the problems it brings are seen as the most important pressure factor for the life opportunities of future generations. Food and fresh water availability, rising sea levels, abnormal weather events, migration, and diseases are thought to affect human health. A multidisciplinary approach is required to adapt to climate change’s health effects and reduce its negative health effects. In addition, it is predicted that diseases that are about to disappear will re-emerge and become threats. It is thought that as a result of the contamination of food and water resources with the changing ecosystem, some infections will increase and society will face them. Nurses are both affected by climate change and its effects on public health. Nurses who remain in this situation have a great role in providing effective awareness for raising public awareness. In recent years, oncology clinics have not been affected by fire, earthquakes, and pandemics in our country. In this respect, it can be stated that the health service in Turkish oncology clinics is carried out uninterruptedly and by experts in the field. We learned during the pandemic that the whole world is unprepared for the future effects of climate change. In this direction, nurses should think about solutions for the problems related to climate change in the future.
AtıfScopus2WoS2OpenAlex2İncele - BildiriAçık Erişim2024High-Accuracy Hand Segmentation for Palmprint Biometric Systems Improving Auto-Encoder Techniques
Yalcin, Kadir; Dogan, Ramazan Ozgur; Dogan, Hulya; Bingol, Ozkan
Biometric technologies have been widely adopted in various commercial products, ranging from security systems to personal devices, due to their exceptional reliability and user-friendliness. Among these, palmprint biometrics has gained increasing attention for its advantages, such as ease of use, a larger surface area, and the ability to capture more features compared to other biometric methods. A typical palmprint biometric system involves five key stages: (a) Image Acquisition, (b) Hand Segmentation, (c) Pattern Generation, (d) Feature Extraction, and (e) Verification/Identification. The overall success of the system depends on the effectiveness of each stage, with hand segmentation being crucial for identifying the most relevant features for accurate verification. This study aims to achieve high-accuracy biometric recognition by segmenting hands from images captured in uncontrolled environments with complex backgrounds. Accuracy (ACC), Intersection over Union (IoU), F1-Score, and Dice Coefficient are the four critical metrics used to assess the performance of segmentation techniques. The findings demonstrate that the U-Net + ViT and MA-Net + ResNet34 techniques outperform traditional auto-encoder methods in both quantitative performance metrics and visual analysis, leading to significantly improved hand segmentation for biometric systems.
- MakaleAçık Erişim2023Scopus SJRQ2The Invariants of Dual Parallel Equidistant Ruled Surfaces
Gür Mazlum, Sümeyye; Şenyurt, Süleyman; Grilli, Luca
In this paper, we calculate the Gaussian curvatures of the dual spherical indicatrix curves formed on unit dual sphere by the Blaschke vectors and dual instantaneous Pfaff vectors of dual parallel equidistant ruled surfaces (DPERS) and we give the relationships between these curvatures. In addition to—in cases where the base curves of these DPERS are closed—computing the dual integral invariants of the indicatrix curves. Additionally, we show the relationships between them. Finally, we provide an example for each of these indicatrix curves.
AtıfScopus18WoS16OpenAlex15İncele - MakaleAçık Erişim2022Scopus SJRQ1Continuous flow microwave processing of peanut butter: A (hypothetical) computational process design study with experimental validation
Coskun, Eda; Ozturk, Samet; Topcam, Huseyin; Karatas, Ozan; Li, Rui; Wang, Shaojin; Mert, Behic; Erdogdu, Ferruh
The increase in foodborne pathogen cases in low moisture foods has raised a significant food safety concern for food industry. One of the most significant outbreaks related with these food products was observed in 2008–2009 due to Salmonella problem in peanut butter. This issue was recently observed again for a multinational case. Challenges of conventional thermal processing due to the lower thermal conductivity – diffusivity value and higher viscosity, microwave (MW) heating might be an efficient processing while the non-uniform heating is a challenging drawback. Therefore, the objective of this study was to develop a mathematical model for MW processing of peanut butter and present industrial scale designs for continuous flow processing. For this purpose, the mathematical model was first experimentally validated using a lab-scale system and validated with experimental data. Following this, continuous flow MW process design studies were carried out with different holding tube configurations to obtain a temperature increase to enable decontamination and improve the temperature uniformity. These design simulations provided a better understanding to enhance the process efficiency of high viscosity low moisture peanut butter samples and for design and optimization of continuous flow MW processing.
AtıfScopus23WoS21OpenAlex23İncele - MakaleYalnız künye2023Scopus SJRQ2Assessment of Knowledge, Emotion, and Attitude Levels of Kindergarten and Elementary School Teachers on the Disaster Management and Pediatric First Aid
Kaya, Afsln Ahmet; Ayker, Bereket
Objectives: This study's aim is to assess the disaster management and pediatric first aid-related knowledge, emotion, and attitude levels of of kindergarten and elementary school teachers, as the professionals that are first to provide interventions in the case of a disaster to children ages 0-8, who are considered to be among the vulnerable groups in the context of a disaster. Methods: A total of 119 teachers working in the kindergarten and elementary schools located in the GÜmÜşhane province of Turkey were included in the study and were asked to fill in a questionnaire that comprises 3 sections. Data collection tools included a sociodemographic questionnaire, teachers' disaster management knowledge levels, and teachers' pediatric first-aid knowledge, emotion, and attitude levels. Results: Analysis of the scores obtained by the teachers from the questionnaire revealed that the teachers, who participated in the study, had a high level of disaster management knowledge and a moderate-to-high level of pediatric first aid knowledge. Conclusions: It is suggested as a result of this study that the disaster risks and injuries or losses of life associated with disasters that may occur at schools may be reduced with disaster management and first-aid interventions.
AtıfScopus5WoS3OpenAlex6İncele - MakaleAçık Erişim2022Scopus SJRQ2Optimization of tuned mass damper inerter for a high-rise building considering soil-structure interaction
Araz, Onur
The dynamic responses of the buildings and the optimum parameters of tuned mass damper inerter (TMDI) may change significantly when soil-structure interaction (SSI) is considered. Thus, it is necessary to consider the effect of the SSI in the optimization of TMDI. The study aims at proposing a methodology for optimization of TMDI parameters in reducing maximum structural responses of a high-rise building under earthquake considering the SSI effects. The equations of motion for time-domain analysis are derived for obtaining seismic-induced vibrations of a multi-story shear building with TMDI when the SSI is considered. An improved particle swarm optimization (IPSO) is used to obtain the optimum parameters. The aim of the optimization is to reduce the amplitude of the acceleration transfer function (ATF). The effectiveness of the optimally designed TMDI is assessed for twelve earthquake records with different frequency contents. The effect of the different mass ratios (µ), inertance ratios (β) and support conditions on control performance of the TMDI are investigated in detail. Numerical results proved that the SSI effect and the inertance ratio have a significant impact on the optimal design and effectiveness of the TMDI. From the seismic analysis results, it is seen that the controlled displacement response usually increases with the increase in the inertia ratio for both the fixed and flexible foundation, and a lower seismic response is obtained in the building controlled by TMD compared with the TMDI with different inertance ratios.
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