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- Kitap BölümüYalnız künye2021Chingiz Aitmatov's grand narrative
Çakin, Ömer; Günay, Mehmet Akif
Beyond political and cultural criticisms, grand narratives have the authority to disclose real facts. This authority is most effective in the field of culture. Grand narratives are the universal presentation of local culture. In a culture dominated by grand narratives, the dominant ideology of the regime is to control knowledge. Grand narratives play a role in generalizing and transferring information skillfully while describing the contemporary situation. A novelist was defined as a mirror reflecting the period and society in which he lived. Likewise, Chingiz Aitmatov tried to depict the political, social, and cultural structure of his period, and accordingly, formed his own grand narrative. The author skillfully revealed the facts of the period regarding the Marxist tradition and described the social, cultural, and political structure of the period using a tentative language in parallel with the facts such as analogy, myth, and legend.
AtıfScopus1
İncele - MakaleYalnız künye2009Scopus SJRQ1Frequency optimization of laminated general quadrilateral and trapezoidal thin plates
Topal, Umut
This paper deals with frequency optimization of symmetrically laminated angle-ply general quadrilateral and trapezoidal thin plates. The objective function is to maximize the fundamental frequency of the quadrilateral and trapezoidal laminated plates and the fibre orientation is considered as design variable. The mathematical formulation is based on the classical laminated plate theory (CLPT) for the frequency analysis. The modified feasible direction (MFD) method is used as the optimization routine. Therefore, a program based on FORTRAN is used. Finally, the significant effects of aspect ratios, boundary conditions, taper ratios and unsymmetric trapezoidal plates on the optimal results are investigated and the results are compared.
AtıfScopus21WoS20OpenAlex22
İncele - MakaleYalnız künye2009Scopus SJRQ2Determination of tectonic and crustal structure of the eastern pontide orogenic belt (NE Turkey) using gravity and magnetic data
Maden, Nafiz; Gelisli, Kenan; Eyuboglu, Yener; Bektas, Osman
The Eastern Pontide Orogenic Belt is one of the most complex geodynamic settings within the Alpine belt. Subduction polarity, which is responsible for the formation of the Eastern Pontide Magmatic Arc, is still under debate because of limited geological, geophysical and geochemical data. This orogenic belt is mainly divided into three subzones depending on lithological characteristics and facies changes as in Northern, Southern and Axial Zones from North to South. These zones are separated from each other by near-vertical faults that display the block-faulting tectonic style of this belt. In this study, the tectonic and crustal structure of the Eastern Pontides, which as yet have not been prospected by using geophysical data, has been investigated with potential field data. The horizontal gradient map obtained from gravity data shows a number of steep and gentle lineaments. It seems that these lineaments E-W, NE and NW-trending correspond to major structural zones of continental crust. Additionally, The Moho depth and Curie point depth variation maps of the Eastern Pontide Orogenic Belt have been computed with the power spectral method of the radial wavenumber carried out by using the fast Fourier transform method. As a result of this method, we estimated that the depths of the Moho and Curie point varied between 29.0 ± 1.2-47.2 ± 1.9 km and 14.3 ± 0.7-27.9 ± 1.4 km, respectively. Our findings indicate that the Moho depth generally increases from north to south in the region. However, the Curie point depth level within the crust has an undulating surface, not a horizontal one.
AtıfScopus41WoS40OpenAlex39İncele - MakaleYalnız künye2009Scopus SJRQ1Effects of nonuniform boundary conditions on the buckling load optimization of laminated composite plates
Topal, Umut; Uzman, Ümit
This paper deals with buckling load optimization of symmetrically laminated composite thin plates under the uniaxial and biaxial compressive loads with discontinuities along the boundaries. The objective of the design problem is to maximize the buckling load of the laminated plates and the fibre orientation is taken as design variable. The classical laminate plate theory is used for the mathematical formulations of the laminates. The modified feasible direction method is used as optimization routine. Therefore a program based on FORTRAN is used. Finally, the effect of nonuniform boundary conditions, aspect ratios and load ratios on the optimum results is illustrated.
AtıfScopus12İncele - MakaleAçık Erişim2020Some Quality Criteria of Valerian (Valeriana dioscoridis Sm.) Growing in Different Environments
Uçar, Esra; Ataş, Mehmet; Çilesiz, Yeter; Çinbilgel, İlker; Eruygur, Nuraniye; Oral, İrem Zeynep; Karaköy, Tolga
Valerian (Valeriana dioscoridis Sm.) is a perennial herb of the Caprifoliaceae family. The genus Valeriana L. is represented by 14 species (15 taxa) in Turkey. This plant contains flavone glycosides, iridoids and lignans. Among these components, the medically important active ingredient is valerianic acid. Essential oils from valerian roots and rhizomes are used for the treatment of various diseases, including insomnia, mental illness, anxiety, menstrual cramps and physical stress conditions. In this study, evaluations were made of the root and rhizome of valerian plants grown in a natural environment and in greenhouse condition. The macro and micro nutrient contents of the powdered plant samples, and the antioxidant and antimicrobial activity values of the extracts were reported. Except for some macro and micro elements, it was determined that antioxidant and antimicrobial activities of plants cultivated and grown in nature were not different. The major components of both the natural and cultivated forms were determined to be 9-Borabicyclo [3.3.1] nonane, 9-[3-(dimethylamino) propyl]- (17.55% and 22.65%, respectively). The heavy metales such as Fe (415.21±47.8 mg/kg), Cu (50.9±0.2 mg/kg) and Mn (274.6±9.5 mg/kg), were obtained above limit values in grown plants of natural environment conditions.
AtıfScopus6OpenAlex4
İncele - MakaleYalnız künye2021Contribution to the taxonomic knowledge of acanthodactylus (Squamata, lacertidae): Description of a new lacertid lizard species from eastern anatolia, turkey
Kurnaz, Muammer; Şahin, Mehmet Kürşat
Acanthodactylus Wiegmann, 1834 is one of the most diverse and widespread lizard genus in the Palearctic realm. Here, we describe a new species, - Acanthodactylus ilgazi sp. nov. - from the Anatolian Peninsula. This new species ranges approximately 250 km north from the closest population of this genus in Turkey. Compared to other fringe-fingered lizards, the new species is phylogenetically close to A. robustus, A. tristrami and A. orientalis but it has some distinct morphological characteristics: Reddish coloration under the tail, a sharp white or grayish stripe in the middle of the dorsum, and four plates in a row on the 4th finger. Moreover, phylogenetic molecular data, based on cyt b gene fragment, verifies that the new species is phylogenetically a member of the tristrami species group with 13.03%, 17.35% and 20.56 genetic distance respectively from A. orientalis, A. tristrami and A. robustus. Lastly, the known range of this species, located in Yazıhan, Malatya in Eastern Anatolia, is restricted by a dam, thus habitat loss endangers its continuity. Therefore, the conservation status of this species should be assessed immediately.
AtıfScopus6İncele - MakaleYalnız künye2021Scopus SJRQ2From Turkey: First Report of KPC-3-and CTX-M-27-Producing Multidrug-Resistant Klebsiella pneumoniae ST147 Clone Carrying OmpK36 and Ompk37 Porin Mutations
Özad Düzgün, Azer
Aim: The aim of this study was to identify antimicrobial resistance genes, virulence factor genes, and porin loss or mutations exhibited by the multidrug-resistant Klebsiella pneumoniae strain. Materials and Methods: Whole-genome sequencing was done via the Illumina NovaSeq 6000 platform. Strain identification and antibiotic susceptibility testing of strains were performed by the Vitek 2 automated system. Multilocus sequence typing analysis was carried out using seven conserved housekeeping genes. Results: The strain was resistant to penicillins, cephalosporins, carbapenems, aminoglycosides, fluoroquinolones, fosfomycin, and trimethoprim/sulfamethoxazole. The isolate was found to carry KPC-3, CTX-M-27, SHV-11, SHV-67, and TEM-1 β-lactamases. The clonal subtype of the isolate was ST147, and it possessed wzi64 and wzc38 alleles. Fifteen different point mutations (N49S, L59V, R146H, V178P, G189T, F198Y, V202L, F207Y, A217S, T222L, D223G, H235N, A280V, N304E, and S346N) were detected in the OmpK36 porin. A frame shift was observed in OmpK35 and two different point mutations (I70M and I128M) were found in the OmpK37 porin, in addition to seven mutations observed on the AcrR. Conclusions: This study demonstrated for the first time that the ST147 clone produced CTX-M-27 as well as KPC-3. In addition, new mutations were detected in the outer membrane proteins. These mutations together with the production of extended-spectrum β-lactamase and carbapenemase were found to contribute to the resistance of the ST147 clone to carbapenem and other antibiotics.
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İncele - MakaleYalnız künye2022Scopus SJRQ4Evaluation of Nutrition Knowledge Levels and Sporting Status of Faculty of Sport Sciences Students
Koçak, Mehmet; Şekeroğlu, Mustafa Önder; Albay, Faruk; Kusan, Osman
Study Objectives: Considering that both physical and psychological effects of nutrition and exercise are important on students, this study aimed to evaluate the nutritional knowledge levels and exercise status of the students of the faculty of sports sciences. Methods: 199 students, 146 (73.4%) male, and 53 (26.6%) female, studying at Sivas Cumhuriyet University Faculty of Sport Sciences participated in the study. The scale consists of 20 items on the “Basic nutrition and food-health relationship” scale, and 12 items on the “Food preference” scale. One-Way Analysis of Variance (ANOVA) and independent t-test were used because the data showed normal distribution. Pearson Correlation test was used to determine the relationship between the nutritional knowledge levels of the individuals participating in the study and the age and bodyweight groups. Results: There was no significant finding when the total points of basic nutrition and food preference were compared according to the regular exercise status of the participants (p>0.05). A significant finding was found when the total scores of basic nutrition and food preference were compared according to the participants’ status of taking nutrition lessons at their schools (p<0.05). Conclusion: In the study, it was revealed that the nutritional knowledge level of the students of the faculty of sports sciences who received nutrition education was sufficient. When the status of doing regular sports is evaluated, it has been revealed that there is no difference between the students who do sports and those who do not, and they have similar nutritional knowledge levels.
- MakaleYalnız künye2021Scopus SJRQ1Mineralogical and Chemical Characteristics of Clay Areas, Gümüşhane Region (NE Turkey), and Their Detection Using the Crósta Technique with Landsat 7 and 8 Images
Vural, Alaaddin; Akpinar, İbrahim; Sipahi, Ferkan
The clay areas in Gümüşhane (NE Turkey) were examined in mineralogical and geochemical terms, and by remote sensing methods. X-ray diffraction, scanning electron microscope and chemical analysis were completed on samples from 11 selected clay areas in the region. Within the scope of remote sensing, Landsat 7 and 8 satellite images of the region were processed with the Crósta technique to assess the clay areas. The Kale and Tamzı clays are contained within a Late Cretaceous turbiditic series. The clays in Canca, Refene and Çamlıca occur in intensively hydrothermally altered volcanic rocks of the Eocene Alibaba Formation. The other clay areas are in the Liassic Şenköy Formation consisting of a volcano-sedimentary series. The clays in the Şenköy Formation are generally below the coal levels. While mainly illite and lesser kaolinite were determined in Dörtkonak, Alemdar, Yukarı Kov and Çamlıca, the clays in Tahnis and Kabantaşı are smectite. Tekke, Canca and Refene clays are kaolinite with smaller amounts of illite, whereas Kale and Tamzı clays are mainly chlorite with lower content of illite–smectite interlayers. Illites in Dörtkonak, Alemdar, Yukarı Kov and Çamlıca are poor in iron and magnesium and formed by hydrothermal alteration of feldspars in the host rocks. Findings of the remote sensing studies using Landsat 7 and 8 datasets were compatible with the results obtained from field observations and general geological studies, and so it is concluded that the Crósta technique provided good results for exploration of clay occurrences and their determination in the region.
AtıfScopus14WoS14OpenAlex15İncele - MakaleAçık Erişim2019Scopus SJRQ2Centaurea hypoleuca DC: Phenolic content, antimicrobial, antioxidant and enzyme inhibitory activities
Özcan, Kadriye; Acet, Tuba; Çorbacı, Cengiz
Centaurea hypoleuca is one of the plants have been traditionally used in treatments of many diseases in folk medicine in Turkey. In the present study, ethanol, methanol, and ethyl acetate extracts of the plant's aerial parts were examined and their antioxidant, antimicrobial, and enzyme inhibition activities were determined for the first time. The antioxidant assays were performed in vitro using ABTS and DPPH methods, whereas the antimicrobial efficiency was determined using disc diffusion and microdilution methods. Moreover, the enzyme inhibition activity was analyzed using calorimetric methods targeting the key enzymes used in the treatment of Alzheimer's disease (cholinesterase) and diabetes (glucosidase and amylase). Also, the phenolic contents were analyzed using HPLC. The biological activity of flower ethyl acetate extract was found to be significantly higher than those of other extracts. This extract was more prominent because of its strong antimicrobial activity with the MIC value of 8 µg mL−1 against MRSA. Moreover, the main components of the extract were determined to be catechin and chlorogenic acid. In conclusion, these results indicate that C. hypoleuca can be pharmaceutically used as herbal remedies for its antioxidant, antimicrobial, and enzyme inhibitor effects.
AtıfScopus35WoS31OpenAlex39İncele - MakaleYalnız künye2019Scopus SJRQ1Examining the effect of “Shotblocker” in relieving pain associated with intramuscular injection
Aydin, Esra; Avşar, Gülçin
This study was conducted in order to examine the effect of “Shotblocker” in relieving pain associated with intramuscular injection. The population of the study consisted of all the patients who were hospitalized in the hospital and received intramuscular diclomec treatment. In order to eliminate the individual pain differences, each patient constituted their own control group. Patient Information Form, Visual Analogue Scale (VAS), and Shotblocker were used to collect the data. Pain level of the patients was measured by using VAS within the first minute after the injection. The pain mean score of the patients was 1.22 ± 0.62 in the experimental group and 2.48 ± 1.12 cm in the control group and the difference between them was statistically significant (p < 0.001). Shotblocker was determined to be effective on relieving pain associated with intramuscular injection.
AtıfScopus29WoS21OpenAlex32İncele - MakaleAçık Erişim2020Scopus SJRQ2Historical aurora borealis catalog for Anatolia and Constantinople (hABcAC) during the Eastern Roman Empire period: Implications for past solar activity
Maden, Nafiz
Herein, Anatolian aurorae are reviewed based on the existing catalogs to establish a relationship between the aurora observations and past solar activity during the Medieval period. For this purpose, historical aurora catalogs for Constantinople and Anatolia are compiled based on the existing catalogs and compared with those in the Middle East region. The available catalogs in the literature are mostly related to the records observed in Europe, Japan, China, Russia, and the Middle East. There is no study dealing only with the historical aurora observations recorded in Anatolia and Constantinople. The data of the catalog show that there is a considerable relationship between the aurora activity and past strong solar activity. High auroral activity around the extreme solar particle storm in 774/775 and the Medieval grand maximum in the 1100s in Anatolia and the Middle East is quite consistent with the past solar variability reported in other scientific literature.
AtıfScopus3WoS2OpenAlex6İncele - MakaleYalnız künye2021Scopus SJRQ2Biological activity of Psephellus appendicigerus as a natural agent
Acet, Tuba; Özcan, Kadriye; Sefalı, Abdurrahman
Psephellus appendicigerus, is a plant endemic to Turkey, belonging to the Asteraceae family, which is traditionally used in folk medicine in Turkey. The aim of this study is to reveal for the first time the biological activities of this plant and evaluate its potential use as a natural product. For this reason, different extracts (ethanol, methanol, ethyl acetate, and hexane) of the plant’s aerial parts were used in determining the antioxidant (2,20-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid and 1,1-diphenyl-2-picrylhydrazyl assays), antimicrobial (disc diffusion and microdilution methods), and enzyme inhibition activity (calorimetric methods) related to diabetes (α-amylase and α-glucosidase). Moreover, the phenolic constituents were analysed by high performance liquid chromatography. Methanol extract of the plant exhibited significant biological activity compared to other extracts. This extract had the highest amount of chlorogenic acid as phenolic compound. In addition, all extracts showed inhibition against at least one test microorganism. According to the results, P. appendicigerus has the potential to be used as a natural antioxidant, antimicrobial and enzyme inhibitor.
AtıfScopus2WoS2OpenAlex3İncele - MakaleYalnız künye2021Scopus SJRQ2Preparation of melon peel biochar/CoFe2O4 as a new adsorbent for the separation and preconcentration of Cu(II), Cd(II), and Pb(II) ions by solid-phase extraction in water and vegetable samples
Ozdes, Duygu; Duran, Celal
The present research describes the successful preparation of melon peel biochar modified with CoFe2O4 (MPBC/CoFe2O4) followed by its usage as a new sorbent to separate, preconcentrate, and determine the toxic heavy metal ions by magnetic solid-phase extraction. The metal ion desorption was performed by 0.1 M HCl solution with a volume of 5.0 mL. Flame atomic absorption spectrometry (FAAS) was utilized for detection of the analyte levels. SEM–EDX, TEM, XRD, and FTIR techniques were carried out to illuminate the structure of MPBC/CoFe2O4. The fundamental variables affecting the adsorption and elution efficiencies of the analyte ions including solution pH, MPBC/CoFe2O4 amount, type and concentration of eluent, adsorption and desorption equilibrium time, and sample volume were optimized. The detection limits were calculated as 0.41, 1.82, and 3.16 µg L−1 for Cu2+, Cd2+, and Pb2+ ions, respectively, with the relative standard deviation of lower than 4.2%. There were no substantial interference effects on the analyte ion recovery due to the presence of foreign ions at high levels. Five minutes of contact time was adequate to attain the adsorption equilibrium. The adsorption capacity of MPBC/CoFe2O4 was obtained as 106.4, 65.4, and 188.7 mg g−1 for Cu2+, Cd2+, and Pb2+ ions, respectively, by utilizing Langmuir isotherm model. The pseudo-second order model is favorable to identify the adsorption kinetics. The method was validated by spike/recovery test, and then, it was successfully implemented to determine the aforementioned analyte levels in sea and stream water, pepper, black cabbage, eggplant, and tomato samples.
AtıfScopus40WoS38OpenAlex39İncele - KitapYalnız künye2020Rethinking European Union In A Changing World: Politics, Economics And Issues
Ugur, Omer
With the establishment of the EU, the goals and policies pursued through European Communities, and the targets and policies covered by new action areas, which include Economic and Monetary Union, European Citizenship, Common Security and Foreign Policy which will be progressed gradually by European Union treaty, have started to be addressed as a whole. The identity of the EU at the global level has also experienced change. In this context, the EU represents a political structure on its own, with its institu-tions, activities and authority, which constitute a supranational structure. Of course, it is not possible to say that this process continues without any problems and disputes. However, when we look at the development process of the EU, it is seen that this change and the transformation continue in the context of the requirements and the process continues dynamically. In this context, this study includes other studies discussing the developments of the EU in different policy spaces. In these studies, it has been examined whether EU policies have an impact on national structures, practices and actors and if there is, how and under what conditions this has become clear.
- MakaleAçık Erişim2020Effect of cereals milling on the contents of phytic acid and digestibility of minerals and protein
Ertop, Muge Hendek; Bektas, Muberra; Atasoy, Rabia
Introduction. The aim of the study was to the examination of effects of the milling process which were applied differently to cereals for commercially flour production, on the phytic acid, microelement, and in-vitro digestibility. Materials and methods. The nutritional consequences of the milling processes of the cereals (wheat, barley, rye, oat, paddy) were evaluated by examining protein, ash, phytic acid, mineral contents, and protein/mineral digestibility rates. Mineral contents were measured by inductively coupled plasma optical emission spectroscopy (ICP-OES), protein content by Kjeldahl method, and mineral digestibility and phytic acid were determined by in-vitro assays. Results and discussion. The dehulling/debranning process increased the protein digestibility rate over to 65% and decreased phytic acid content significantly (p0.05) of the cereal grains except for rye. The mineral digestibility raised for all grain samples, but it was evaluated statistically insignificant (p0.05). The rice flour was the sample that had the lowest phytic acid content (921.87 mg/100g) and the highest mineral digestibility rate (58.35%). Although the contents of total ash and some of the minerals (Na, Ca, K, Mg, Zn, Fe, Ba, and P) decreased in flours especially in wheat and paddy, the rate of some minerals (Na, Mg, Zn, Fe, and Al) increased due to their distribution and localization in the grain layers, especially in rye and oat. The result of the study has shown that the level of the minerals changed depending on the bran/hull content of the grains, and the milling process was more effective on phytic acid content and on protein digestibility than on the mineral digestibility. While the phytic acid content was located on the outer layer of the grain, it was decreased in the kernel. Conclusions. Although the phytic acid content which affects the digestibility of the cereals were reduced by the milling process, the combination of different treatments such as soaking, fermentation could be suggested for improving the nutritional quality of the cereal.
AtıfScopus24WoS20OpenAlex27İncele - BildiriYalnız künye2021Numerical solution of the nonlocal reverse parabolic problem with second kind boundary and integral conditions
Ashyralyyev, Charyyar; Gönenç, Ahmet
In this work, we consider approximation of nonlocal reverse parabolic problem with second kind boundary and integral conditions. Stability and coercive stability estimates for solution of difference scheme are obtained. Some illustrations of numerical results in examples of one and two dimensional reverse parabolic equations are presented.
- BildiriYalnız künye2020Scopus SJRQ4A fuzzy decision maker to determine optimal starting time of shiftable loads in the smart grids
Altaş, Ismail Hakkı; Çakmak, Recep
Smart grid studies have been increased tremendously for past ten years in order to modernise and solve problems of current electrical grids. One of the aim of the smart grids is to react autonomously to the problems in electrical networks by means of artificial intelligence and decision maker. Fuzzy logic-based embedded control systems simulate human thoughts and decision making processes. So, fuzzy logic and fuzzy decision makers can be utilised in smart grids for automated system management. In this paper, a fuzzy decision maker has been proposed to manage time-shiftable loads in residences. The proposed fuzzy decision maker determines optimal starting time of time-shiftable loads in residential areas in order to provide balanced power curve and decrease peak load consumptions by scheduling the loads. Design stage of the proposed fuzzy decision maker have been introduced and presented clearly. Finally, a design example has been given to show the decision results.
AtıfScopus6İncele - Kitap BölümüYalnız künye2020Effect of refugees on the components of economic misery: An empirical analysis of top refugee-hosting countries
Büyükakin, Figen; Bayraktar, Yüksel; Özyilmaz, Ayfer
AtıfScopus3İncele - Kitap BölümüYalnız künye2020Social Memory and Cultural Identity
Ak, Muammer
