Kazan Meslek Yüksekokulu / Kazan Vocational School
Permanent URI for this collectionhttps://hdl.handle.net/11727/2077
Browse
16 results
Search Results
Item The Effects of Using Artificial Intelligence and Robotics in Logistics Service Production: An Application in 3pls and 4pls(2023) Caglar, Macide Berna; Taskin, Bihter KaragozBackground: The purpose of this study is to investigate how artificial intelligence (AI) and robotic awareness, perceived organizational support, and competitive psychological climate approaches relate to turnover intention. In the literature, studies on robotic awareness and turnover intention have been undertaken in a variety of industries. In this respect, this study aims to address the absence in the literature of research on logistics services providers. This study aims to help businesses understand how to retain employees and foster a more inclusive and supportive workplace.Methods: The study utilizes survey information from 100 senior managers in the operations function of logistics service providers. The outcomes are obtained by modeling structural equations with SmartPLS. Data from the survey were gathered using the snowball sampling technique.Results: The results of the research reveal the effect of artificial intelligence and robotic awareness on competitive psychological and turnover intention.Conclusions: The study aims to explore the role of a competitive psychological climate and organizational support in mediating the relationship between AI and robotics awareness and turnover intention. We identify that awareness of AI and robotics has a considerable, favorable effect on the psychological climate of competition and turnover intention. We also find that the competitive psychological atmosphere has a substantial, favorable effect on turnover intention. In addition, organizational support has been demonstrated to have a substantial, favorable effect on turnover intention. However, it was not possible to identify the mediating role of organizational support and the psychological environment of competition in moderating the association between awareness of AI and robotics and turnover intention. On the basis of the research's findings, suggestions were made.Item Rates of Weighted Statistical Convergence for A Generalization of Positive Linear Operators(2023) Ilbey, Reyhan Canatan; Dogru, OgunIn the present paper, some direct and inverse theorems relating to a generalization of positive linear operators are given. Also some rates of weighted statistical convergence are computed by means of a weighted modulus of continiuty.Item The Effect Of Kefir Enrichment With Arthrospira Platensis And Chlorella Vulgaris On Kefir Microbiota, Antioxidant, And Physicochemical Properties(2022) Kahraman Ilikkan, Ozge; Bagdat, Elif SeymaThis study evaluated the effect of Arthrospira platensis and Chlorella vulgaris on kefir microbiota, total phenolic content, antioxidant activity, and physicochemical properties such as pH, Brix, total dry matter, and titratable acidity. The results showed that the addition of algae at concentrations of 0.5% (w/v) and 1% (w/v) to the kefir did not change the acceptable physicochemical properties of kefir. The acidity of the microalgae-enriched kefirs increased with increasing algae concentration. Total phenolic content and antioxidant activity of all kefir samples fortified with algae were higher than those of the control. However, the addition of A. platensis exhibited better prebiotic activity than C. vulgaris on kefir microbiota during storage. Principal component analysis and overall results showed that A. platensis was a better candidate for improving the nutritional value of kefir.Item Synthesis, Antimicrobial And Thermal Studies Of Nitropyridine-Substituted Double Armed Benzo-15-Crown-5 Ligands; Alkali (Na+ And K+) And Transition Metal (Ag+) Complexes; Reduction Of Nitro Compounds(2022) Kocoglu, Serhat; Hayvali, Zeliha; Ogutcu, Hatice; Atakol, Orhan; https://orcid.org/0000-0002-3590-9084; GMW-9869-2022Nitropyridine substituted double-armed benzo 15-crown-5 compounds (1-4) were synthesized by the reactions of 4',5'-bis(bromomethyl)benzo-15-crown-5 with hydroxypyridine derivatives. Na+ and K+ complexes (1a-4a, 1b-4b) of crown ether compounds (1-4) were prepared with sodium picrate and potassium picrate, respectively. Transition metal complexes (1c-4c) of the synthesized ligands (1-4) were prepared from Ag+ cation. In addition, nitro compounds (1, 2 and 4) were reduced by using Pd/C and hydrazine hydrate and new amine compounds (5, 6 and 8) were obtained. The structures of new double-armed crown ether compounds (2-4), their metal complexes (1a-4a, 1b-4b, 2c-4c) and amine compounds (5, 6 and 8) were elucidated by FTIR, HRMS, H-1-NMR, C-13-NMR spectroscopic methods. The thermal behaviors of these nitro group containing ligands (1-4) were compared with the resulting silver complexes (1c-4c) and amine compounds (5, 6 and 8). All synthesized compounds were examined for antibacterial activity against pathogenic strains Listeria monocytogenes, Salmonella typhi H, Bacillus cereus, Staphylococcus aureus, Staphylococcus epidermidis, Micrococcus luteus, Escherichia coli, Klebsiella pneumonia, Proteus vulgaris, Serratia marcescens, Shigella dysenteria and antifungal activity against Candida albicans.Item An Efficient Approach For Sub-Carrier Allocation In MIMO MC-CDMA Systems(2022) Seyman, Muhammet Nuri; Demiral, BircanSub-carrier allocation is an important process that directly affects users data and bit error rates for multi-user multi-carrier systems. The most important feature of the allocation process is to assign the sub-carriers to the active users in proportion to their needs to provide high-speed data transmission and reduce the bit error rates. In this study, an efficient subcarrier allocation algorithm has been proposed based on both capacity and fairness criteria for a MIMO MC-CDMA system, which is preferred as the multiplexing scheme in high data rate communication systems. The proposed algorithm achieves not only better error rate performance but also increases the total data rate compared to other algorithmsItem Comparison Of Propionibacterium Genomes: CRISPR-Cas Systems, Phage/Plasmid Diversity, And Insertion Sequences(2022) Kahraman-Ilikkan, Ozge; https://orcid.org/0000-0001-5843-6868; 35763226; Q-9641-2019The clustered regularly interspaced short palindromic repeats (CRISPR)-Cas systems constitute the adaptive immune system in prokaryotes that provide resistance against invasive genetic elements. The genus Propionibacterium comprises gram-positive, facultative anaerobe, non-spore-forming bacteria, and is the source of some B group vitamins such as B12 as well as bacteriocins. Some of the selected species of the genus Propionibacterium spp. were reclassified into the three genera in 2016 (Acidipropionibacterium spp., Pseudopropionibacterium spp., Cutibacterium spp.). Therefore, this study compared CRISPR/Cas systems, Cas 1 and repeat sequences phylogeny, phage/plasmid surveys as well as insertion sequences of new genera members. In this study, a total of 34 genomes of 13 species were observed with a bioinformatic approach. CRISPR-Cas + + and CRISPRDetect were used to detect CRISPR/Cas systems, direct repeats, and spacers. 39 CRISPR-Cas systems were detected. Type I-E, Type I-U, and one incomplete III-B CRISPR-Cas subtypes were identified. Most of the strains had Cas1/Cas4 fusion proteins. Pseudopropionibacterium propionicum strains had two types I-U and one of the CRISPR loci had csx17 cas genes. Common phage invaders were Propionibacterium phage E6, G4, E1, Anatole, and Doucette. The BLSM62 similarity score of all Cas1 sequences was 48.4% while the pairwise identity of repeat sequences was 48.7%. Common insertion sequences were ISL3, IS3, IS30. The diversity analysis of the CRISPR/Cas system in the genus Propionibacterium provided a new perspective for determining the role of the CRISPR-Cas system in the evolution of new genera.Item Metataxonomic Sequencing To Assess Microbial Safety Of Turkish White Cheeses(2022) Kahraman-Ilikkan, Ozge; Bagdat, Elif Seyma; https://orcid.org/0000-0001-5843-6868; 35277850; Q-9641-2019High-throughput sequencing has provided a way to monitor the large diversity of microorganisms in fermented foods that have complex microbiota. Up to date, many kinds of cheese have been characterized with the metataxonomic approach, but the safety of unpacked Turkish white cheeses, which are widely consumed in Turkey, has not been assessed. In this study, fifteen unpacked white cheeses sold in public bazaars in Ankara province have been collected and subjected to microbial enumeration as well as physicochemical analysis. Five white cheeses, which have relatively the highest foodborne pathogens, out of fifteen white cheeses, have been analyzed by next-generation sequencing and metataxonomic analysis. According to the results, abundant families were Lactobacillaceae, Oceanospirillaceae, Enterococcaceae, Pseudomonadaceae, and Vibrionaceae. Staphylococcus aureus, E. coli, and Salmonella, which are indicators of bad hygiene and sanitation conditions, were found in cheeses. In conclusion, culture-independent methods such as metataxonomic can be important to evaluate the safety of foods.Item Analysis of Probiotic Bacteria Genomes: Comparison of CRISPR/Cas Systems and Spacer Acquisition Diversity(2021) Ilikkan, Ozge Kahraman; 0000-0001-5843-6868; 35068602; Q-9641-2019Clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) genes constitute an adaptive (acquired) defense system of bacteria and archaea. Here 72 probiotic bacteria genomes were investigated in terms of the presence of CRISPR/Cas systems and phage/plasmid invaders through spacer analysis. 49 CRISPR/Cas systems were detected within probiotic strains, namely,17 type II-A, 10 type I-C, 8 type I-E, 5 Type I-U (I-G), 4 type III-A, 2 type I-B, 1 type I-A, 1 type IV-B, and 1 type II-C. The predicted target of spacers was determined in 25 strains and consequently, three different spacer and target patterns were revealed. The diversity of CRISPR spacers provides insight and understanding to determine strain-specific invaders of probiotic bacteria as well as their relationships between strains. CRISPR systems were clarified in many studies for genomic characterization. However, recently, endogenous genome editing with CRISPR has provided an approach for various genome editing projects. Thus, in the future, producing strain-specific phage-resistant starter cultures or probiotics by endogenous genome editing methods according to phage/plasmid survey can be utilized for industrial and pharmaceutical applications. Therefore, this study intended a comprehensive investigation of CRISPR systems of probiotic bacteria.Item Comparison of bacterial and fungal biodiversity of Turkish kefir grains with high-throughput metagenomic analysis(2021) Ilikkan, Ozge Kahraman; Bagdat, Elif Seyma; 0000-0001-5843-6868; Q-9641-2019Kefir is a health-promoting fermented drink having complex microbiota. This complex microbiota consists of bacteria and yeast association that is bound together with a polysaccharide called kefiran. To date, the complex microbiota of fermented foods was enlightened with culture-depended methods, however, recently, metagenomic studies have been started to use to reveal microbial diversity of fermented foods such as kefir. In this present study, we investigated the microbiome of two artisanal Turkish kefir grains (namely, A and G) by high throughput sequencing at the species level. Additionally, physicochemical analyses were carried out besides enumerations of lactobacilli, lactococci, total aerobic, and bifidobacteria in fermented milk kefirs. In these two kefir grains, different bacterial and fungal populations were revealed. In kefir grain A, Bifidobacterium longum was the dominant species while in kefir grain G, Lactobacillus kefiranofaciens was dominant. Concerning fungal diversity, in kefir grain A, Naumovozyma dairensis was the dominant yeast, while in kefir grain G, Zygosaccharomyces rouxii was dominant. High-throughput sequencing studies have revealed that kefir grains were typically dominated by lactobacilli. But, in this study, Bifidobacterium longum was found as a dominant bacterium in kefir for the first time.Item Genome composition analysis of multipartite BNYVV reveals the occurrence of genetic re-assortment in the isolates of Asia Minor and Thrace(2020) Ozmen, Canan Yuksel; Khabbazi, Saber Delpasand; Khabbazi, Afsaneh Delpasand; Gurel, Songul; Kaya, Riza; Oguz, Muhammet Cagri; Turan, Ferzat; Rezaei, Fereshteh; Kibar, Umut; Gurel, Ekrem; Ergul, Ali; 32139777Beet necrotic yellow vein virus (BNYVV) is the cause of rhizomania, an important disease of sugar beet around the world. The multipartite genome of the BNYVV contains four or five single-stranded RNA that has been used to characterize the virus. Understanding genome composition of the virus not only determines the degree of pathogenicity but also is required to development of resistant varieties of sugar beet. Resistance to rhizomania has been conferred to sugar beet varieties by conventional breeding methods or modern genome engineering tools. However, over time, viruses undergo genetic alterations and develop new variants to break crop resistance. Here, we report the occurrence of genetic reassortment and emergence of new variants of BNYVV among the isolates of Thrace and Asia Minor (modern-day Turkey). Our findings indicate that the isolates harbor European A-type RNA-2 and RNA-3, nevertheless, RNA-5 is closely related to East Asian J-type. Furthermore, RNA-1 and RNA-4 are either derived from A, B, and P-types or a mixture of them. The RNA-5 factor which enhance the pathogenicity, is rarely found in the isolates studied (20%). The creation of new variants of the virus emphasizes the necessity to develop new generation of resistant crops. We anticipate that these findings will be useful for future genetic characterization and evolutionary studies of BNYVV, as well as for developing sustainable strategies for the control of this destructive disease.