Bayburt University Institutional Repository
Not a member yet
3703 research outputs found
Sort by
Yabancı Dil Olarak Türkçe Öğretiminde Metin Sadeleştirme Üzerine Yapılan Çalışmalar Üzerine Bir İnceleme
No full textBu çalışma yabancı dil olarak Türkçe öğretiminde metin sadeleştirme üzerine yapılan çalışmaları incelemek amacıyla hazırlanmıştır. Nitel bir araştırma olan bu çalışmada, içerik analizi yöntemi kullanılmıştır. Yapılan araştırmalarda 2011- 2021 yılları arasında metin sadeleştirme üzerine 33 lisansüstü tez ve 2 makale tespit edilmiştir. Bu çalışmada yabancı dil olarak Türkçe öğretiminde metin sadeleştirme üzerine yapılan çalışmalar; yapıldığı yıl, yapıldığı üniversite, sadeleştirilen düzey, sadeleştirilen tür, sadeleştirmede ölçü olarak belirlenen kaynak, etkinlik hazırlama, sözlük hazırlama, uzman görüşü alınma, uygulanma ve hangi boyutta sadeleştirildiği başlıkları altında incelenmiştir. Araştırmalar sonucunda yabancı dil olarak Türkçe öğretiminde metin sadeleştirme üzerine 20 farklı üniversitede lisansüstü tez hazırlandığı; Gazi Üniversitesi toplam 6 tezle 1. sırada yer alırken Necmettin Erbakan Üniversitesinin 4 tezle 2. sırada yer aldığı tespit edilmiştir. Ayrıca A1 ile C1 arasında tüm düzeyler için sadeleştirme yapıldığı ve bazı çalışmaların A1-A2 ve B1-B2 gibi birden fazla düzeye yönelik olarak yapıldığı belirlenmiştir. B1 düzeyinde 40 sadeleştirme yüksek lisans, 10 sadeleştirme doktora tezi ve 1 sadeleştirme ise makale çalışması olarak yapılmış ve toplam 51 çalışmayla en fazla B1 düzeyinde sadeleştirme işlemi yapılmıştır. Sadeleştirme işlemi yapılan edebi türlere bakıldığında, hikâye türünde 76, fıkra türünde 15, destan ve masal türlerinde 10, roman türünde 5, mektup türünde 2 gezi yazısı, anı ve deneme türlerinde 1 (birer) adet sadeleştirme işleminin yapıldığı tespit edilmiştir
Investigating the Relationship Between the Financial Conditions Index with Economic Growth and Net Capital Inflow: Causality Analysis for Türkiye
No full textThe global economic crisis, which had a devastating effect worldwide with the bankruptcy of Lehman Brother's investment bank in the United States of America in 2008, revealed that countries should indicate risks and take precautions accordingly. In this sense, the importance of the Financial Conditions Index (FCI), which was created by considering the monetary policy instruments of the country's central banks and various macroeconomic and financial variables as a whole, has also increased. FCI, the index that has taken place in the literature since the 1990s, with the growth of countries, has been investigated in empirical studies conducted after the global economic crisis. In this study, the related index is calculated using Principal Component Analysis (PCA), and the data generated is analyzed with growth and net capital inflow items. According to the results of the related analysis, while there is bidirectional causality between FCI and real gross domestic product (GDP) growth, one-way causality was found between FCI and net capital inflow. The index created accordingly is the Granger cause of the net capital inflow
Variations of natural frequencies of masonry minarets due to environmental effects
No full textIt is very important to distinguish the reason of change in natural frequencies of structures either caused by a possible damage or environmental conditions (temperature and humidity). In this study, the changes in the dynamic properties of masonry and reinforced concrete minarets under environmental effects, such as temperature and humidity, were investigated. The masonry minarets of Iskenderpasa, Haci Kasim, and Tavanli Mosques and the reinforced concrete minarets of Karadeniz Technical University, Dilaveroglu and Papatya Mosques in Trabzon were monitored by ambient vibration test method, and the relationship between natural frequencies and temperature and humidity was tried to be determined. For this purpose, the natural frequencies of these minarets were measured at certain intervals under different temperature and humidity conditions over a period of approximately 6 months. The vibration measurement system which was developed by our research team was used in the measurements. From the data collected by these measurements, the variation intervals of the natural frequencies (the smallest and the highest values), the percentages of change and their relations with temperature and humidity were revealed. This relationship was determined using linear-non-linear simple and multiple regression analyses. From this study, it was found that the natural frequencies change under environmental effects, such as temperature and humidity, and this rate of change was approximately 7%. There was moderate correlation in Tavanli, Dilaveroglu, and Papatya Minarets, and strong correlation in Haci Kasim Minaret.Office of Scientific Research Projects of Karadeniz Technical University [FYL-2022-10134]This work was supported by Office of Scientific Research Projects of Karadeniz Technical University, under Project No. FYL-2022-10134. The authors would like to thank Dr. & Idot;smet CALIK who is Director of Trabzon Foundation Regional Directorate for his great contributions to structure information of all minarets and field tests
Green synthesis of (S)-1-(furan-2-yl)propan-1-ol from asymmetric bioreduction of 1-(furan-2-yl)propan-1-one using whole-cell of Lactobacillus paracasei BD101
No full textChiral heterocyclic alcohols are important precursors for production of pharmaceutical medicines and natural products. (S)-1-(furan-2-yl)propan-1-ol ((S)-2) can be used production of pyranone, which can be used in the synthesis of sugar analogues, antibiotics, tirantamycines, and anticancer drugs. The synthetic approaches for (S)-2, however, have substantial difficulties in terms of inadequate enantiomeric excess (ee) and gram scale synthesis. Moreover, the biocatalytic synthesis of (S)-2 is unknown until now. In this study, the synthesis of (S)-2 was carried out by performing the asymmetric bioreduction of 1-(furan-2-yl)propan-1-one (1) using the Lactobacillus paracasei BD101 biocatalyst obtained from boza, a grain-based fermented beverage. (S)-2 was obtained with >99% conversion, >99% ee, and 96% yield under the optimized conditions. Furthermore, in 50 h, 8.37 g of 1 was entirely transformed into (S)-2 on gram scale (96% isolated yield, 8.11 g). This is the first report on the high-gram scale biocatalyzed synthesis of enantiopure (S)-2. These data suggest that L. paracasei BD101 can be used to bioreduction of 1 in gram scale and efficiently produce (S)-2. Furthermore, these findings laid the base for future study into the biocatalytic production of (S)-2. It was particularly notable as it was the highest known to date optical purity of (S)-2 generated by asymmetric reduction using a biocatalyst. This work offers a productive environmentally friendly method for producing (S)-2 using biocatalysts.The authors thanks to Prof Enes Dertli (Yildiz Technical University) for providing the biocatalyst.The authors thanks to Prof Enes Dertli (Yildiz Technical University) for providing the biocatalyst
The effect of AI-powered chatbots in social studies education
No full textThe aim of this research is to investigate the educational potential of AI-powered chatbots in Social Studies learning-teaching processes. The study was conducted using embedded design, evaluated within the framework of mixed methods research. The study group consists of 78 6th-grade students studying in three different classes, along with one teacher who implemented the practices and guided the process. During the experimental phase of the study, lessons in the experimental group were taught by the practitioner teacher using an AI-powered chatbot named SosyalciBot. Meanwhile, lessons in two control groups were taught following the constructivist approach. At the end of the process, it was determined that the experimental group students' post-test and permanency test scores were significantly higher than the control group students' scores in both post-test and permanency test. In the semi-structured interviews, both students and the practitioner teacher provided positive evaluations of the pedagogical and design features of the chatbot, indicating that these features positively impacted the learning-teaching process. They also identified some shortcomings while offering suggestions for improvement. Based on the study findings, it is evident that chatbots have a high potential to contribute to Social Studies education. However, to fully harness this potential and achieve optimal effectiveness, further advancements and refinements in chatbot technology are required. At this point, it is recommended to conduct theoretical or applied studies focusing on developing chatbots with high communication capacity and explore innovative and constructive ideas regarding the integration of chatbots into educational environments.Bayburt UniversityThis study was produced from the doctoral thesis prepared by the first author under the supervision of the second author
Removal kinetics of vinyl acetate under aerobic and anoxic conditions in a batch bioreactor
No full textVinyl acetate is a volatile organic compound widely used in the chemical industry, and there is a need for effective and economic removal of this volatile organic compound from wastewater and waste gases in chemical industries. This study aims to determine the biological treatability of vinyl acetate both under aerobic and anoxic conditions using mixed cultures obtained from a wastewater treatment plant. Considering the previous studies in the literature, testing the biodegradability of vinyl acetate under both aerobic and anoxic conditions, together with evaluating the effect of other mechanisms, such as adsorption and volatilization, on the removal of vinyl acetate, can be regarded as the prominent part of this study. Wastewater containing artificially prepared vinyl acetate was treated in a batch bioreactor, and performance and kinetic constants were investigated. Aerobic treatment under batch conditions conformed to the Haldane biokinetic equation, and the biokinetic constants of mu(max), K-s, and K-i were calculated as 0.66 h(-1), 19.67 mg L-1 and 50.56 mg L-1, respectively. Anoxic treatment under batch conditions conformed to the Monod biokinetic equation, and the biokinetic constants of mu(max) and K-s were calculated as 0.31 h(-1) and 33.88 mg L-1, respectively. Experiments revealed that vinyl acetate was not volatile, and its adsorption and biological treatment performances were 28% and 72%, respectively. The mixed culture had a very high performance for removing vinyl acetate under batch operating conditions. The primary mechanism of vinyl acetate removal was found to be biological treatment.Scientific and Technological Research Council of Turkey [CAYDAG-108Y346]This research was financially supported by the Scientific and Technological Research Council of Turkey [CAYDAG-108Y346]
The Effect of STEM-Based Robotic Coding Education on Primary School Students’ Decision-Making Skills
No full textThis study aimed to determine the effectiveness of STEM-based robotic coding education for primary schoolers in terms of their decision-making skills. Mixed method was preferred in the research. Pretest-posttest control group designs were used in the quantitative phase, and the case study was used in the qualitative phase of the research. The study sample consisted of 65 third graders. Pre-testing of experimental and control group students was performed using the decision-making skill scale. STEM-based robotic coding training was given to the experimental group for 6 weeks. Afterwards, the decision-making skill scale was applied as a post-test to both the experimental and control group. Quantitative data were analyzed with the paired and independent samples t-test. A statistically significant increase was observed in the experimental group students’ decision-making skills in favor of the post-test. There was no significant difference between the pre-and post-test scores of the control group students. An interview with 15 experimental group students was conducted in order to collect qualitative data, and the interview results were analyzed using the content analysis technique. According to the qualitative findings, robotic coding education positively affected the students’ decision-making, problem-solving, and willingness to share ideas. Suggestions were made based on the results
Exponential Convex Functions with Respect to s
No full textIn this paper, we study the concept of exponential convex functions with respect to s and prove Hermite-Hadamard type inequalities for the newly introduced this class of functions. In addition, we get some refinements of the Hermite-Hadamard (HH) inequality for functions whose first derivative in absolute value, raised to a certain power which is greater than one, respectively at least one, is exponential convex with respect to s. Our results coincide with the results obtained previously in special cases
The effect of high-intensity plyometric training on anaerobic performance parameters: a pilot study in U17 elite A league
No full textThe aim of this study was to examine the effects of high-intensity plyometric training (HIPT) on some parameters in elite soccer players in the U17. Volunteer soccer players were randomly divided into two groups according to their positions: the regular training (RT) group (age: 16.71 +/- 0.47 years; stature: 163.46 +/- 3.31 cm; body weight: 61.04 +/- 1.59 kg) and the HIPT group (age: 16.64 +/- 0.50 years; stature: 165.60 +/- 3.03 cm; body weight: 59.76 +/- 1.92 kg), and each group included five defenders, five midfielders, and four attackers. While the RT group did only routine soccer training, the HIPT group performed high-intensity plyometric training three days a week in addition to routine soccer training. In the study, body weight, stature, sprint (10 m, 30 m, and 40 m), jump (standing long jump, right and left-limb triple hop) and 5-0-5 change of direction speed test measurements of the soccer players were taken. Skewness and Kurtosis values obtained from the pre-test and post-test measurements were calculated to test whether the normality assumption of the study was met. A mixed measure two-way ANOVA test was used to determine the difference between the pre-test and post-test. The significance was set asp < 0.05. The results indicated that 8-week high-intensity plyometric training provided more improvement in measured performance parameters than routine soccer training. As a result, when the data obtained is examined, it can be said that HIPT had better values in sprint, jump, and change of direction parameters, so plyometric training was more beneficial for anaerobic parameters than routine soccer training in children. It is recommended that the trainers make their plans considering these results
A Study on Recognizing the Value of Chestnut (Castanea sativa) Blossom Waste
No full textChestnut (Castanea sativa) blossoms are natural resources that are not put to economic use. They are completely mixed with soil as waste. Thus, this extensive study was designed and remarkable results were found showing the potential usefulness of chestnut blossoms. In addition to the phenolic capacity and antioxidant capacity of the aqueous and ethanolic extracts of dried chestnut flowers, the anti-urease activity of these extracts was studied to demonstrate their therapeutic value. The binding interaction of phenolic substances present in chestnut blossom with urease was shown using molecular docking research. The aqueous extract, with most effect, had total phenolic content of 46.67 +/- 0.37 mg GAE/g and total flavonoid content of 6.14 +/- 0.40 mg QUE/g. The antioxidant activity was determined by FRAP (648.47 +/- 5.27 mu mol FeSO4.7H2O/g for aqueous extract and 347.53 +/- 2.09 mu mol FeSO4.7H2O/g for ethanolic extract) and DPPH (0.05 +/- 0.01 mg/mL for SC50 of aqueous extract and 0.11 +/- 0.01 mg/mL for SC50 of ethanolic extract) assays, and rutin was found to be the dominant phenolic compound according to HPLC. IC50 values for urease in aqueous and ethanolic extracts were 2.55 +/- 0.09 mg/mL and 4.57 +/- 0.24 mg/mL, respectively. According to the docking experiments, which were important to support the hypothesis of anti-urease activity, myricetin and luteolin showed different and effective bonding degrees to the target protein when compared with the reference molecule acetohydroxamic acid. In summary, chestnut flowers are rich in phenolic compounds which are responsible for a wide range of biological activities including antioxidant features and urease inhibition. These blossoms could be evaluated as potentially important raw materials for food