Sürdürülebilir Kalkınma Amaçları

Yazarlar

  • Yüksek Lisans TeziAçık Erişim2024
    Synthesis of chitosan-containing polymers and their antimicrobial activities on some foodborne pathogens found in fish

    Ebru Polat Özmen

    In this study, a new polymer was obtained by adding chitosan, an antimicrobial agent, to poly N-(2-Hydroxypropyl)methacrylamide)(HPMA) polymer. FT-IR, TGA and SEM analyzes showed that Chitosan-graft-poly(N-(2 Hydroxypropyl)methacrylamide)(HPMA) polymer was successfully synthesized and had the desired properties. 2% acetic acid solution (K+HPMA+A) of chitosan-graft-poly(N-(2 Hydroxypropyl)methacrylamide)(HPMA) polymer was used to kill foodborne pathogens found in fish (Klebsiella pneumoniae clinical isolate, Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 29213, Enterococcus faecalis ATCC 29212) on the development of disc diffusion and Its effectiveness was examined with antibacterial susceptibility tests, which is the microdilution broth method. For this purpose, as a result of treating chitosan with 2% acid solution (K+A), chitosan with pure water (K+S) and chitosan-graft-poly(N-(2-Hydroxypropyl)methacrylamide)(HPMA) with 2% acetic acid solution (K+HPMA+A); While the high concentration of K+HPMA+A and K+A (300µL: 8.85 mg) have a higher antimicrobial effect on gram (-) and gram (+) bacteria, the lower concentration of K+HPMA+A (300µL: 4.425 mg) showed a lower inhibition zone in all bacteria except on E. coli. When the minimal inhibition test, which is decisive for the antibacterial effect, is examined, the Mic value of K+A on bacteria is 15.62 μL and the Mic value of K+HPMA+A is 31.85 μL. Compared to standard antibiotics; It has been determined that it has the same antimicrobial properties on gram (+) bacteria and more effective antimicrobial properties on gram (-) bacteria. Our study findings show that K+HPMA+A solution containing chitosan in appropriate doses (300-31.85 µL) has bactericidal properties that will stop the growth of bacteria, which is an important feature in supporting treatment for improving human and public health. In addition, it contributes to the studies carried out to increase food safety on the subject.

  • MakaleAçık Erişim2024
    An Investigation on Faulty Renovation Practice in Hotel Facility Management: Adıyaman Grand Isias Hotel (GIO) Example

    Ceylan, Ebru Nalan

    The facility management approach in hotels differs between organizations. Different issues need to be taken into account in the design, construction, operation and renovation of tourism accommodation facilities. As a result of the earthquake disaster that took place on February 6, 2023, it was seen how unprepared we were in terms of safe buildings. The loss of life at GIO in Adıyaman, which initially creates the perception that it is new to its customers, prioritizes drawing attention to this issue in terms of hotels. The aim of the study is to make suggestions to the project management process of medium-sized hotels that need renovation and are mostly operated by the owners, and to raise awareness in determining their priorities. The method of the study is case study. Within this study, the significance of renovation as a hotel facility management tool will be discussed through literature research, and the improper practices at GIO will be examined by conducting a case study. Information was obtained through the hotel's web page, by scanning the news published on the internet and by examining the report prepared by the academicians who were assigned as experts in the case process. The fact that the building's license projects could not be accessed and the business owner could not be contacted limited the case study. It has been suggested that facility management expertise should be used in the renovation management of medium-sized hotels, which are mostly managed by the owners.

    • SDG 11 · Sürdürülebilir Şehirler ve Topluluklar
  • MakaleAçık Erişim2024
    Evaluation of Susurluk Basin Flows Using Trend Analysis Methods

    Acar, Ramazan

    Trend analysis of annual average flow data is very important for better water resources management, planning and operation. In this study, annual average flow data from M. Kemal Paşa, Orhaneli and Simav flow observation stations located in Susurluk Basin were tested with Mann-Kendall, Spearman Rho and Şen's Innovative trend methods and the trends of the stations were tried to be determined and the performances of these methods were evaluated. In addition, annual average flow data were submitted to regression analysis, yielding equation sets. For each station, the annual and 100-year changes in m3/s were determined. Analyzing the results, only Şen's Innovative Trend Method analysis found a general decreasing trend for all 3 stations. In the analyses of Mann-Kendall and Spearman’s Rho methods, no trend was detected in all 3 stations. In addition, 100-year percentage change values of the data of 3 stations were determined. According to these values, it is concluded that there will be a significant decrease in the flow values of the stations in the future.

    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfOpenAlex11TR Dizin4
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  • MakaleYalnız künye2024
    A Comparative Study for Privacy-Aware Recommendation Systems

    Utku, Anıl; Canbay, Yavuz

    Recommendation systems are sophisticated processes for information filtering designed to offer users tailored recommendations based on their preferences and interests. Users need help to choose between options as the amount of information on the web grows. As a result, it is critical to deliver personalized recommendations to consumers to promote user loyalty and satisfaction. Because recommender systems use sensitive user information such as ratings, comments, likes, and dislikes, this information can be leaked if no privacy measures are taken. As a result, we presented a comparison of privacy-aware recommendation systems in this paper. Two experiments are carried out. In the first experiment, we examined collaborative filtering algorithms on perturbed ratings and then compared hybrid, collaborative, and content-based algorithms on perturbed ratings in the second experiment. According to the results, the Singular Value Decomposition++ (SVDpp) algorithm presented the lowest Root Mean Square Error (RMSE) and Mean Absolute Error (MAE) values for epsilon 100, with 0.8889 and 0.6822, respectively. Furthermore, for epsilon 100, the hybrid filtering technique had the lowest RMSE and MAE rates of 0.90664 and 0.69813, respectively.

    AtıfOpenAlex2TR Dizin1
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  • MakaleAçık Erişim2024
    Convmixer ve SDD Kullanılarak DEHB Hastalığının EEG Sinyalleri ile Otomatik Olarak Tespit Edilmesi

    Sengur, Abdulkadir; Üzen, Hüseyin; Özçelik, Salih Taha Alperen; Uyanik, Hakan; Karakaş, Buğra

    DEHB, çocuklarda dikkat eksikliği, davranış problemleri, eğitimle ilgili sorunlar ve düşük özgüven gibi problemler oluşturabilir. Bu çalışma, Dikkat Eksikliği Hiperaktivite Bozukluğu (DEHB) teşhisini elektroensefalografi (EEG) sinyalleriyle değerlendirmeyi hedefleyen bir araştırmayı özetlemektedir. Araştırma, 30 DEHB tanısı almış çocuk ve 30 sağlıklı kontrol grubunun EEG verilerini kullanmıştır. EEG verileri öncelikle gürültü azaltma amacıyla işlenmiş ve ardından ConvMixer, ResNet50 ve ResNet18 gibi derin öğrenme modelleri kullanılarak sınıflandırılmıştır. Bulgular, ConvMixer'in düşük hesaplama kaynaklarına ihtiyaç duyarak yüksek sınıflandırma başarısı elde ettiğini göstermektedir. Ayrıca, EEG sinyallerinin DEHB teşhisinde kullanılabilirliği konusunda farklı kanalların etkileri incelenmiş ve T8 kanalının özellikle etkili olduğu tespit edilmiştir. Bu çalışma, EEG tabanlı DEHB teşhisi için daha hafif modellerin kullanılabilirliğini ve EEG kanallarının önemini vurgulamaktadır.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfOpenAlex1
    TR Dizinİncele
  • MakaleAçık Erişim2024
    Examining Pre-Service Science Teachers' Personal and Enacted Pedagogical Content Knowledge About Seasons

    Kılıç, Aygün

    This study examined pre-service science teachers’ pedagogical content knowledge (PCK) about seasons. The framework of this study was based on the Refined Consensus Model (RCM), and pre-service teachers’ topic-specific PCK was also discussed in two dimensions: personal PCK (pPCK) and enacted PCK (ePCK), which are included in this model. The pPCK of the pre-service teachers represents their declarative PCK, and their ePCK represents their dynamic PCK. This qualitative descriptive research included 18 pre-service science teachers. In the study, knowledge of pre-service teachers’ pPCK was collected in vignette-based individual semi-structured interviews, and data on their competencies regarding their ePCK, which they revealed in a real classroom environment, were collected through field observations and teaching video recordings. The study’s qualitative data were evaluated using two separate rubrics developed by the author using the literature. Accordingly, it was determined that the pre-service teachers who participated in the research had limited pPCK and ePCK on the seasons and that their topic-specific pPCK was partially better quality than their topic-specific ePCK. Moreover, pre-service teachers’ ePCK was observed to be different from their pPCK, but their ePCK was based on their pPCK. In this context, it was seen that the results of this research are consistent with RCM.

    • SDG 4 · Nitelikli Eğitim
    AtıfOpenAlex1
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  • MakaleAçık Erişim2024
    Effect of Probiotic on Copper Nanoparticle Accumulation in Dreissena polymorpha

    Serdar, Osman; Aydın, Ayşe Nur

    Materials with dimensions between 0.1 and 100 nm are called nanoparticle (NP) materials. In recent years, the usage areas and quantities of NP materials have increased in parallel with the development of the industry. The need and usage areas of heavy metals such as Cu have also expanded in NP sizes. All these developments have led to problems on the ecosystem that are becoming more difficult to compensate. In this study, Zebra Mussel (Dreissena polymorpha) was chosen as a model to investigate the effect of probiotics on CuNP heavy metal accumulation. The model organism was exposed to three different concentrations of CuNP (5, 10, 50 mg/L) with probiotics and directly for 24 and 96 hours. CuNP accumulation amounts in D. polymorpha tissues treated directly and with probiotics were compared. The amount of accumulation in the test organism directly exposed to CuNP was higher compared to the groups administered with probiotics, but a statistically significant difference (p<0.05) was found only in the treatment group with the highest 24-hour concentration (50 mg/L). As a result, according to the findings obtained from the study, it has been determined that probiotics have positive developmental effects on aquatic organisms, as well as beneficial in the elimination of their accumulation in the organism.

    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfOpenAlex4TR Dizin1
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  • MakaleAçık Erişim2024
    Evaluation of Novel Plant-Based Milk Produced from Melon Kernel

    Aydın, Çağlar Mert

    In this study, the possible use of melon kernel (Cucumis melo L.) as a source for production of daily milk alternative was evaluated. For this purpose, the study evaluated proximate composition, physicochemical properties and sensory properties of the milk from Kultik kernel. Overall, proximate composition consists of 88.84% moisture, 1.08 ash, 0.96 protein and 5.50% fat and 3.63% carbohydrate content. Low protein content of the milk limits its usage as an ingredient in the production of fermented dairy products. Physicochemical properties showed that Kultik kernel milk is rich in nutritional value. Rheological behaviour of the milk showed non-Newtonian with pseudoplastic character. Similar flow character to dairy milk enables the milk sample to be produced in existing equipment and processes, allowing large-scale industrial production. In addition, sensory scores of the milk sample were low, thus new formulas including the milk samples should be developed in further studies.

    • SDG 2 · Açlığa Son
    • SDG 12 · Sorumlu Üretim ve Tüketim
    AtıfOpenAlex2TR Dizin1
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  • MakaleYalnız künye2024
    The Relationship Between Healthy Lifestyle Behaviors of Male University Students and the Drive for Muscularity

    Önen, Cihan; Sandıkçı, Muhammed Bahadır; Sandıkçı, Duygu Büşra

    This study was conducted in order to determine the healthy lifestyle behaviors of male students and examine their relationship with their drive for muscularity. This study was designed as a cross-sectional correlational study. Male students studying at Munzur University Faculty of Sport Sciences in the Fall semester of the 2021-2022 academic year constitute the scope of the study. The Personal Information Form, Healthy Lifestyle Behaviors Scale II (HLBS II), and Drive for Muscularity Scale (DMS) were used as data collection tools. HLBS II mean score of the participants is 129.93±22.89. DMS mean score of the students is 48.07±16.00. The relationship between TBM (Training Behaviors for Muscularity) sub-component and HLBS II is moderate and statistically significant. There is a statistically weak correlation between HLBS II and DMS when considered by the total scores of the scales. In the multiple linear regression model, family residence, HLBS II, and smoking explain the muscularity drive in a statistically significant way. Healthy lifestyle behaviors of university students are associated with the drive for muscularity. However, it was observed that the attitude for muscularity was not directed towards healthy lifestyle behavior. Healthy lifestyle behavior, smoking and place of residence explain the drive for muscularity at a low rate. Students may have desired to be muscular for many purposes other than healthy lifestyle. In future studies, multiple linear regression models can be created with new variables that will explain students' drive for muscularity and the public health dimension of the subject can be discussed.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
    AtıfOpenAlex1
    TR Dizinİncele
  • MakaleYalnız künye2024
    Do Changes in Demographic Factors Affect Public Health Expenditures? The Case of Turkiye

    Sarı, Sacit

    The main objective of this study is to analyze the effect of demographic factors on public health expenditures in the Turkish economy for the period between 1980 and 2021. Time series methods are employed in this analysis. The stationarity of the variables is tested with the conventional unit root test, while Zivot-Andrews unit root test is employed to identify potential structural breaks in the data. The existence of long-run relationships between non-stationary variables is investigated using the ARDL bounds test method. According to the analysis results, a persistent and statistically significant association exists between public health expenditures and GDP, contingent upon variables such as the old dependent population ratio, urbanization, and population. While increases in national product decrease public health expenditures, increases in demographic variables cause an overall rise in total public health expenditures. Increasing life expectancy, changing demographic structure, urbanization, and advances in medical technology have significantly increased health expenditures. Policymakers must establish strategies to boost the representation of the private sector in the health market if public health spending is to be sustainable and efficient.

  • MakaleAçık Erişim2024
    Potential Human Health Risk from Toxic/Carcinogenic Arsenic in Ripe and Unripe Tomatoes Grown in Wastewater Exposed Zone

    Topal, Murat; Topal, E.Işıl Arslan; Öbek, Erdal

    The aim of the present study was to investigate the potential risk to human health from toxic/carcinogenic arsenic in ripe (RiTo) and unripe tomatoes (UnRiTo) grown in the municipal wastewater treatment plant effluents exposure zone. The arsenic concen-trations were determined in each tissue of RiTo and UnRiTo tomatoes. Arsenic values in tomatoes were root>leaf>unripe tomato>ripe tomato>stem. The maximum ED (exposure dose) value in RiTos was 1.21E-02 mg.kg-1.day-1 for child, minimum ED value was 4.80E-03 mg.kg-1.day-1 for male. The ED value was calculated as 5.44E-03 mg.kg-1.day-1 for female. The maximum ED value in UnRiTo was 2.12E-02 mg.kg-1.day-1 for child, min ED value was 8.39-03 mg.kg-1.day-1 for male. ED value was calculated as 9.51E-03 mg.kg-1.day-1 for female. EDs in RiTo and UnRiTo were child>female>male. When the HQs (hazard quotient) in RiTo and UnRiTo compared, HQ values in UnRiTo were higher. All of the HQ values were higher than 1. As a re-sult, results of tomatoes analysis show that there was non-carcinogenic and carcino-genic health risks.

    • SDG 2 · Açlığa Son
    • SDG 3 · Sağlık ve Kaliteli Yaşam
    • SDG 6 · Temiz Su ve Sanitasyon
    AtıfOpenAlex2TR Dizin1
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  • MakaleAçık Erişim2024
    Teleparallel Energy Density within the Framework of Rainbow Gravitation Theory for A Spatial Self-Similar, Local Rotational Symmetric Model

    Korunur, Murat; Korunur, Sibel

    It is known that the general theory of relativity provides valuable answers about our universe. General relativity theory is used to describe space, time, and mass-energy interactions, while quantum theory is used to explain the behavior and interactions of microscopic particles. The gap between these two theories reveals the need to develop a unified theory of "quantum gravity". However, so far no universal theory has yet been found that fully resolves this conflict. This is a big puzzle that physicists have been working on for a long time, and unifying these two theories harmoniously is one of the biggest challenges in modern physics. One of the theories put forward for this purpose is the "Rainbow" theory of gravity. In this study, Einstein, Bergmann-Thomson and Landau-Lifshitz energy densities are calculated for a spatial self-similar, locally rotationally symmetric model using teleparallel geometry within the framework of the Rainbow theory of gravity. However, the results obtained are evaluated using rainbow functions that are well known in the literature. The obtained results are rewritten as explicit forms of energy densities for Einstein, Bergman-Thomson and Landau-Liftshitz representations using f_1 (\\chi)=1/(1-\\chi)and f_2 (\\chi)=1 rainbow functions. Accordingly, it has been shown that the test particle changes its energy density for the Einstein and Bergmann-Thomson energy-momentum prescriptions but does not change the energy density for the Landau-Liftshitz energy-momentum prescription.

  • MakaleAçık Erişim2024
    Perceptions of and intentions to use value stream costing in lean manufacturing enterprises in turkey

    Türk, Zeynep; Çeviren, Seher Meral

    New methods such as value-stream costing (VSC) and management, which focuses on shortening production times and providing added value for the customer, have become necessary because of rapid developments in technology. The purpose of this study is to examine the intentions of lean companies in Turkey to apply VSC. Survey data analyzed with SPSS and AMOS show that the perceived ease of use for the individual has a significant effect on both the intention to apply VSC and the perception of usefulness for the individual while that for the organization affects the perception of usefulness for the organization.

  • MakaleAçık Erişim2024
    Common Fixed Point Results for w-α-Distance

    Atıcı Turan, Gülcan; Polat, Fatma

    In this study, we examined some fixed point theorems in non-full metric spaces. We define the notions of α-lower semi-continuous , w-α-distance, w_0-α– distance, w-α-rational contraction and generalized w-α-rational contraction mapping. We also give related theorem and example. Then, we prove Banach’s fixed-point theorem thanks to the concept w-α- distance in metric spaces equipped with an abritrary binary relation. Also, w-α- rational contraction mapping and generalized w-α-rational contraction mapping are defined and by using these definitions, the theorem related fixed point is expressed and proved.

  • MakaleAçık Erişim2024
    Neural Network Based a Comparative Analysis for Customer Churn Prediction

    Akcayol, M. Ali; Utku, Anıl

    Customer churn refers to a customer's disconnection from a business. The expense associated with customer churn encompasses both the forfeited revenue and the marketing expenditures required to acquire new customers. Mitigating customer churn stands as the foremost objective for every business. Customer churn prediction will contribute to developing strategies enabling businesses to retain these customers by identifying customers with a high risk of loss. In the digital world, the importance of developing customer churn prediction models is increasing daily. In this study, MLP based artificial neural network model was developed for customer churn prediction using customer data from an anonymous telecommunications company. The developed model was compared with kNN, LR, NB, RF, and SVM. The prediction results of the applied models were discussed, and the experimental results showed that all the models compared had over 70% accuracy. Experimental results showed that the developed MLP-based artificial neural network model has the most successful classification performance compared to other models with approximately 95% accuracy.

    AtıfOpenAlex3TR Dizin2
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  • MakaleAçık Erişim2024
    Evaluation of the Effect of Different Extraction Temperatures on the Synthesis of Silver Nanoparticles from Ocimum basilicum (Basil) Plant

    Aydogdu, Burcu; Unal, Ilkay

    The eco-friendly green synthesis of silver nanoparticles (AgNPs) using Ocimum basilicum (basil) extract at varying extraction temperatures (40°C, 60°C, 80°C, 100°C) was investigated to determine the optimal conditions for nanoparticle formation. Analysis methods such UV-Vis spectrophotometry, Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and TransmissionElectron Microscopy (TEM) confirmed the crystalline, spherical nature of AgNPs and identified phytochemicals acting as capping and reducing agents. Notably, the extraction temperature was found to influence both the DPPH radical scavenging activity and the structural properties of AgNPs. According to TEM analysis results, it was observed that high extraction temperatures increased the nanoparticle formation efficiency but created a wide size distribution. The crystallite sizes, calculated using the Scherrer equation, for AgNPs synthesized at different extraction temperatures, were determined to be 12.45 nm, 18.77 nm, 17.76 nm, and 16.03 nm, respectively. The hydrodynamic sizes of the AgNPs were found to range between 158.1 and 333.7 nm. The study highlights the critical role of extraction temperature in the synthesis process, suggesting 40°C as the optimal temperature for achieving efficient and environmentally friendly synthesis of AgNPs with enhanced biological activities.

    AtıfOpenAlex4TR Dizin1
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  • MakaleAçık Erişim2024
    Traditional and Local Data Usage in Boutique Hotels; Kerme Ottoman Konak

    Güngör, Gizem Nur; Ceylan, Ebru Nalan

    Boutique hotels furnished stylish are one of the types of accommodation facilities. Quality design and architectural features are the basic values that boutique hotels should provide. In today's architecture, steps need to be taken to keep traditional and local architecture alive. In some cases, it is thought that being inspired by traditional and local architecture as a concept in boutique hotel design, will contribute to the preservation of cultural heritage, beyond imitation and copying. Design processes based on data consisting of both natural and cultural elements have a high potential to ensure the protection and sustainability of cultural heritage. In this context, the use of traditional and local data in boutique hotels is examined through the example of Kerme Ottoman Konak in Muğla Akyaka. The hotel was designed as a museum, equipped with Seljuk, Ottoman and local architectural elements, in order to promote the traditional architectural design culture on a global scale and in compliance with the design parameters added to the zoning rules as a result of Nail Çakırhan houses receiving award for successfully interpreting the traditional. In the study, a case study was conducted. The data was obtained through on-site investigations and from the hotel's website. Spatial design was analyzed within the framework of Ching's concepts of "architecture, form, space and order". The design principles, which include the blending of tradition, locality and modernity in relation to Nail Çakırhan's architecture, are schematized and presented. According to the findings, it has been determined that the hotel is a boutique hotel that can be shown as an example in terms of sustainability in the protection and preservation of cultural heritage with its architectural shaping, interior design, material and furnishing usage, which includes elements from Seljuk, Ottoman and local cultures.

    • SDG 11 · Sürdürülebilir Şehirler ve Topluluklar
  • MakaleYalnız künye2024
    The Effect Of Genital Hygiene Training Provided To Women With A History Of Vulvovaginal Candidiasis On Genital Hygiene Behaviors And Self-Care Agency

    Ucar, Tuba; Baransel, Esra Sabancı; Sibel, Akgül Kartal

    Objective: The objective of the study was to determine the impact of genital hygiene training on genital hygiene practices and self-care agency levels in women with a history of vulvovaginal candidiasis who lived in rural locations. Methods: The participants of this randomized controlled study were women who had a history of vulvovaginal candidiasis during the previous year and were registered with family health centers in two rural communities in eastern Türkiye. There were 114 women in the sample, including 57 in the intervention group and 57 in the control group. Training on genital hygiene behaviors was given to the women in the intervention group. Results: Before the intervention, there was no significant difference in terms of self-care agency levels and genital hygiene behaviors between the women in the intervention group and the control group (p>0.05). After the first month following the training, the self-care agency levels of the participants in the intervention group increased significantly compared to the control group (94.71±8.08, 83.84±9.52, respectively;). Additionally, the appropriate genital hygiene behaviors mean score of the participants in the intervention group was significantly higher than those in the control group (141.36±15.88, 132.29±20.15, respectively;) (p<0.05). Conclusions: The results of this study showed that genital hygiene behavior training can be a useful strategy for promoting genital hygiene behaviors and self-care agency among women of reproductive age with a history of vulvovaginal candidiasis who live in remote locations.

    • SDG 3 · Sağlık ve Kaliteli Yaşam
  • MakaleAçık Erişim2024
    Application of Deep Learning for Voice Command Classification in Turkish Language

    Çelik, Yusuf

    In this study, a deep learning model was developed for the recognition and classification of voice commands using the Turkish Speech Command Dataset. The division of training, validation, and test sets was carried out on an individual basis. This approach aims to prevent the model from memorizing and to enhance its generalization capability. The model was trained using Mel-Frequency Cepstral Coefficients (MFCC) features extracted from voice files, and its classification performance was evaluated in detail. The findings indicate that the model successfully classifies voice commands with a high accuracy rate, achieving an overall accuracy of 92.3% on the test set, highlighting the potential of deep learning approaches in voice recognition technologies

    AtıfOpenAlex6
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  • MakaleAçık Erişim2024
    Examining number sense skills of kindergarten children

    Tertemiz, Neşe Işık; Palabiyik, Ersin

    The aim of this study is to determine the number sense skills of preschool (Kindergarten) children. In the study, survey design, one of the quantitative research methods, was used. The study group consists of a total of 114 children attending all the kindergartens (5 kindergartens) in the city center of Tunceli in the 2020-2021 school year. The data collection tool used in the study is the "Preschool Number Sense Test" developed by the researchers. In the analysis of the data, the correct answers obtained by using number sense skills, the correct answers obtained by using rule and operation-based methods, the false answers obtained by using number sense skills, the false answers obtained by using rule-operation-based methods and the questions left unanswered were considered. As a result of the analysis made, it was determined that preschool students used rule- and operation-based methods more in problem-solving when dealing with questions, and it was seen that they used number-sense-based methods less frequently.

    • SDG 4 · Nitelikli Eğitim
    AtıfOpenAlex1
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