Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(86)
- Güler, Ömer(69)
- Akkurt, Nevzat(68)
- Baskonus, Haci Mehmet(53)
- Tekin, H.O.(52)
- Bulut, Hasan(50)
- ALMisned, Ghada(49)
- Serdar, Osman(43)
- Yucesan, Melih(43)
- Paksoy, Mehmet Yavuz(42)
- Yildirim, Numan(41)
- Zengin, Gokhan(40)
- Yildirim, Nuran Cikcikoglu(39)
- Ince, Muharrem(37)
- Kocabaş, Mehmet(37)
- Celik, Erkan(35)
- Benzer, Fulya(33)
- Sulaiman, Tukur Abdulkadir(29)
- Aslan, Naim(27)
- Can, Erkan(27)
- Kutlu, Banu(27)
- Kök, Mediha(27)
- Tanyol, Mehtap(27)
- Danabas, Durali(26)
- Kutluyer, Filiz(26)
- Özkul, İskender(26)
- Ates, Mehmet(25)
- Yildirim, Ozal(25)
- Onat, Onur(23)
- Topal, Murat(23)
- Demir, Veysel(22)
- Erten, Fusun(22)
- Guler, Omer(22)
- Say, Yakup(22)
- Yaman, Mehmet(22)
- Alataş, Mevlüt(21)
- Güler, Seval Hale(21)
- Çimen, Okay(21)
- Baykal, Duygu Sen(20)
- Mete, Suleyman(20)
Yayınlar
- MakaleYalnız künye2021FATTY ACID CONTENT AND FREE RADICAL SCAVENGING (DPPH) ACTIVITIES OF SOME OF BRYOPHYTES EXTRACTS
Aydinl, Sevinc; Alatas, Mevlut; Batan, Nevzat
In this study, DPPH and fatty acid contents were investigated of some taxa belonging to Neckeraceae (Alleniella complanata, Alleniella besseri, Exsertotheca crispa) and Hypnaceae (Hypnum cupressiforme, Hypnum resupinatum, Hypnum andoi) family collected from Kamilet Valley (Artvin-Arhavi) in 2017. DPPH free radical scavenging activity was determined according to the method developed by Brand-Williams et al. The fatty acids in extracts were analyzed via gas chromatography after transforming them into methyl esters. According to the obtained results, it was determined that the DPPH scavenging effects of taxa from Hypnaceae family were significantly higher than those of taxa from Neckeraceae family, and that the free radical scavenging effects of taxa from Hypnaceae family varied depending on the amount of extract. The saturated fatty acids content of the Neckeraceae and the unsaturated fatty acids of the Hypnaceae were found to be richer (p<0.001). The high DPPH activity in our study, especially in Hypnum species, suggested that Hypnum species were richer in terms of phenolic content. These compounds can be used in the pharmaceutical, cosmetic and food sectors, if both of these species are phenolic and fatty acid content can be obtained as pure.
AtıfWoS2
İncele - MakaleAçık Erişim2021A Scale Development Study Intended for Mathematics Teacher Candidates: Mathematical Visualization Perception Scale
Ilhan, Aziz; Tutak, Tayfun
The aim of this study is to develop a valid and reliable measurement tool that measures mathematical visualization perceptions for mathematics teacher candidates. Therefore, the type of study is a survey research. Research was carried out with 462 (336 Female, 125 Male) mathematics teacher candidates from a university located in the Eastern Anatolia region Turkey in 2018-2019 spring season. Exploratory and confirmatory factor analyzes were performed for the analysis of research data. In the process of development of Mathematical Visualization Perception Scale (MVPS); the preparation of the pool of material, testing of the validity of the scope and appearance, conducting the trial application, ensuring the construction validity, calculating the reliability and establishing the final scale were followed. As a result of the exploratory factor analysis, a valid and reliable 5-point Likert-type scale consisting of 42 items, with 6 factors [Additional Drawing (AD), Spatial Thinking (ST), Direction Concept (DC), Relation with Daily Life (RDL), Transition from Algebra to Geometry (TAG) and Transition from Geometry to Algebra (TGA)] was created. Cronbach Alpha internal stability coefficient of these factors was calculated as 0.938. The factor structure of the scale was also confirmed by confirmatory factor analysis. As a result of the findings obtained, it was suggested to the researchers who will study in the related field to evaluate mathematical visualization perceptions of mathematics teacher candidates by using related scale with different sample groups or different variables.
AtıfOpenAlex3İncele - MakaleYayıncıda açık erişim2021Investigation on the effects of Inula viscosa L. on rainbow trout gonad cells induced by lipopolysaccharide
Küçükgül, Azime; Küçükgül, Altug; Korkmaz, Tulay Metin
Fish cells have been accepted as an alternative to in vivo assay for inflammatory effects of therapeutic experimental systems. To reveal the anti-inflammatory effects of Inula viscosa (IV) fish cell line RTG-2, derived from the gonadal tissue of rainbow trout, was infected with lipopolysaccharide (LPS). Effective concentrations for different concentrations of LPS (1, 5, 10, 20 mu M) and IN (1, 5, 10, 20 mu g ml(-1)) were determined. While the 20 mu M concentration of LPS, which was effectively selected from preliminary tests, caused 27% cell loss, the effective 1 mu g ml-1 concentration of IN caused 1.1% proliferation in the cells when compared to the control group. All pro-inflammatory parameters investigated in LPS-induced RTG-2 cells showed up-regulation, with the highest increase in TNF-alpha gene expression level (11.3 fold changes). Down-regulation was determined in the IN together with LPS administered group and IL-1 beta had the highest effect with 96%. IL-6 protein level decreased by LPS at a rate of 4% and IN together with LPS increased by 9%. The IN exhibited significant efficacy against inflammation caused by LPS. However, further studies are needed to determine pharmacological activity of I. viscosa in details.
- MakaleYalnız künye2021On Metric Contact Pairs with Certain Semi-Symmetry Conditions
Ünal, Inan
Blair et al. [7] introduced the notion of bicontact manifold in the context of Hermitian geometry. Bande and Hadjar [1] studied on this notion under the name of contact pairs. These type of structures have important properties and their geometry is some different from classical contact structures. In this paper, we study on some semi-symmetry properties of the normal contact pair manifolds. We prove that a Ricci semi-symmetric (or concircularly Ricci semi-symmetric) normal metric contact pair manifold is a generalized quasi-Einstein manifold. Also, we classify normal metric contact pair manifolds as a generalized quasi-Einstein manifold with certain semi-symmetry conditions L (X, Z).R = 0, R(X, Z).L = 0 and L (X, Z).L = 0 for the concircular curvature tensor L, the Riemannian curvature tensor R, and an arbitrary vector field X.
- MakaleAçık Erişim2021Determination of thermal tolerance parameters of swordtail (Xiphophorus helleri) and platy fish (X. maculatus) acclimated to different temperature levels
Yanar, Mahmut; Özdes, Ali; Erdogan, Erhan; Evliyaoglu, Ece
Thermal tolerance parameters of swordtail (Xiphophorus maculatus) and platy (X. helleri) at three acclimation temperatures were determined in the study. The CTMin values at 20, 24 and 28 degrees C acclimation temperature were 9.41,10.42 and 11.95 degrees C respectively for platy and 9.38,11.5 and 13.23 degrees C for swordtail, while CTMax values were 37.41, 39.19 and 40.52 degrees C for platy and 36.94, 38.89 and 40.07 degrees C for swordtail. Accordingly, acclimation temperature affected the lower and upper temperature tolerances of fish by 3-4 degrees C. The CTMin ARR values varied between 0.42-0.42 in swordtail and 0.20-0.34 in platy, while CTMax ARR ranged between 0.29-0.48 in swordtail and 0.33-0.44 in platy depending on acclimation temperature. Thermal tolerance polygon area of platy (232 degrees C-2) was slightly higher than that of swordtail (217.3 degrees C). The fact that both fish species have lower temperature tolerances limits their geographic distribution and aquaculture in subtropical climates where the water temperature drops to 10 degrees C in winter.
AtıfWoS2OpenAlex1
İncele - MakaleYalnız künye2021TREND ANALYSIS OF THE EFFECT OF RAIN ON SOLAR ENERGY PRODUCTION IN A SUSTAINABLE FUTURE
Korkmaz, Meral
The greatest need of the modern world is energy. From production to consumption, energy has become essential in all areas. As fossil-derived energy production systems cause global warming and climate change, interest in renewable energy sources is increasing. Despite the pandemic, solar production has shown promising growth throughout the world. Turkey has been encouraging investments in renewable energy sources, especially solar energy, for the last 10 years. Feasibility studies before the installation of solar power plants are crucial for investors. As a result of feasibility studies, the cost of the investment and the depreciation period can be calculated. In this study, feasibility studies of the 474 kWp power plant in Samsun province were carried out with PVsyst program. Significant differences were found between the software results and the actual results of the solar plant built in Samsun province. Production losses between actual data and numerical data are thought to be related to meteorological data. There are numerous studies in the literature about PV software. However. current studies have not examined the effect of meteorological data of the region on the difference in production between PV software results and solar power plant production values. In this study, the Sen method was used to determine the precipitation trend by taking meteorological data from Samsun province. With this method, rainfall in Samsun province was seen to be on an upward trajectory. For this reason, in regions where there is a lot of precipitation; feasibility studies of solar power plants are falling by approximately 9 percent.
- MakaleYalnız künye2021Scopus SJRQ1Morphometric investigations on the NW Bitlis-Zagros mountain range (SE Turkey): Implications for the internal deformation of the western Turkish-Iranian Plateau
Sançar, Taylan
Collision of the Arabian and Eurasian plates has resulted in uplift of the Turkish-Iranian Plateau, where debate continues over how post-collisional convergence is being converted to strain. The internal deformation models of the plateau have taken into account the distribution of deformation in the NW-trending Bitlis-Zagros Mountain Range (BZMR), the southern boundary of the collision. The western end of the BZMR is marked by contrasting topographic relief resulting from the coupling of tectonic and erosional processes. This region providing an excellent record for undertaking quantitative analysis which can improve our understanding of its tectonic evolution. Mountain front analyses reveal that each fault segment located in front of the western BZMR falls within the limits of Class-1 that corresponds to an uplift rate of >0.5 mm yr(-1). Hypsometric and basin asymmetry analysis were analyzed for 93 drainage basins, indicating that weakly to moderately eroded basins can be moderately to strongly asymmetric but show no uniform tilting direction. Channel concavity, integral and knickpoint analyses suggest that, apart from the thrust fault that represents the margin of the collision zone, there is no pronounced single geological constraint that causes differential tectonic uplift and furthermore implies that the effect is distributed across multiple different structures. The findings of this study suggest that continuous lower rate horizontal displacement has occurred in this region since the onset of collision, but also indicates that the western end of the BZMR represents a zone of higher convergence, in which shortening is being converted to the vertical plane strain.
AtıfWoS6OpenAlex8İncele - MakaleYalnız künye2021ANTIOXIDANT ACTIVITIES AND SOME BIOCHEMICAL CONTENTS OF THE SEEDS OF THE OKUZGOZU AND BOGAZKERE (Vitis vinifera L.) GRAPE VARIETIES GROWN IN TURKEY
Aydin, Sevinc
The Vitis vinifera L. grape species is a fruit that is the most prevalently grown in the whole world and has economic significance. It is known that, due to its climate conditions, Turkey has rich resources in terms of Vitis vinifera L. With this study, we aimed to determine the phenolic, vitamin and fatty acid contents of the Okuzgozu and Bogazkere varieties of Vitis vinifera L. and see the effects of these contents on antioxidant activity. Fatty acids in the lipid extract were analyzed by gas chromatography after conversion into methyl esters. For flavonoid and vitamin analyses, a high-performance liquid chromatography device (HPLC-UV. Shimadzu) was used. Antioxidant activity was determined by Radical Scavenging Activity (DPPH) and Lipid Peroxidation (MDA) experiments, As a result of the study, some saturated and unsaturated fatty acid, phenolic compound and vitamin contents of the two varieties were obtained. It was observed that the amounts of unsaturated fatty acids, whose effects on antioxidant activity are known, in the Okuzgozu variety were significantly higher than those in the Bogazkere variety. The results on phenolic and vitamin compounds revealed higher amounts in the Okuzgozu variety in comparison to Bogazkere as in the case of fatty acids. The finding that these contents and antioxidant activity were in proportion suggested that the antioxidant effect of the Okuzgozu variety is higher. If the substances that provide this effect are correctly isolated from the plant, they may be used beneficially in both the food and pharmaceutical sectors.
- MakaleYalnız künye2021THE EFFECT ON JOB SATISFACTION OF EXECUTIVE SUPPORT PERCEPTION OF COACHES IN TURKEY
Kizilkoca, Mustafa; Namli, Aysel Kizilkaya
This study aims to determine the effect of coaches' perception of executive support on job satisfaction. A relational screening model was used in the study for this purpose. Disproportionate sampling was used within the scope of the study, and 516 coaches working in various provinces of Turkey composed a sample of the study. The scale of executive support developed by Karasek et.al (1985) and adapted by Kula (2011) and the scale of job satisfaction made by Bilir and Keser (2019) was used in the collection of data. Pearson Correlation analysis was used to reveal the relationship between scores from scales, Linear Regression analysis was used to determine whether the scores obtained affected each other. Error level in the study was taken as p<0.01. It has been determined that there is a positive and meaningful relationship between the executive support levels of coaches in Turkey and the levels of job satisfaction. It can be said that as the level of executive support increases, the levels of job satisfaction increase. According to linear regression analysis, it was determined that the level of executive support positively affected the job satisfaction levels of coaches. It was observed that the executives' support scores of coaches in Turkey were higher than average with an average of 3.53 and job satisfaction scores were high with an average of 4.08 in our study.
- MakaleAçık Erişim2021Scopus SJRQ2The Negative Perception of the Bektashi and the Kizilbash/Alevis in Literature from Nur Baba to Bektasi Kiz (1913-1945)
Çakmak, Yalcin
The Kizilbash/Alevi and Bektashi have been subject to various negative criticisms due to their beliefs outside Sunnism, the official belief system since the sixteenth century. It has been seen that the members of the two groups, whose social bases and beliefs mostly overlap, have faced several accusations because of their exclusive rituals. On that sense, this case came to be a subject matter in Ottoman official documents as well as in the texts written by the Westerners who were active in Ottoman territories. Sexual ones are foregrounded among the accusations that they were subject to owing to this exclusive structure of the Bektashi and the Kizilbash/Alevi communities. This perception of the communities in question came to be a mystery in accord with doubts put into circulation by Sunni communities especially. The growing interest of the society in this mystery were to be a subject matter of both the Ottoman literature and the literature of the Republic. Nur Baba penned by Yakup Kadri Karaosmanoglu in serials in 1913 and published into a book in 1922 was the first work upon this subject. The repercussions Nur Baba had and its content became an inspiration to following works by others. The opposition to the Bektashi and the Kizilbash/Alevi was employed in common and distinct works by Omer Seyfeddin, Peyami Safa (Server Becli) and Niyazi Ahmet Banoglu in the following years. This paper intends to chronologically study and analyse the portrayal of the Kizilbash/Alevi and the Bektashi in relation to the continuation of the negative perception in literature, starting with Nur Baba, , in Harem, Pamuk Ipligi and Bir Genc Kiz Bektasiler Arasinda and Bektasi Kiz, from the late Ottoman period to the midst of the Republic period except for Sadri Ertem's cikriklar Durunca novel.
AtıfOpenAlex4TR Dizin4İncele - MakaleYalnız künye2021PHYLOGENETIC ANALYSIS OF WILD GROWS GANODERMA LUCIDUM IN TURKEY BASED ON THE ITS REGION OF RDNA AND OBTAINING HYBRID STRAINS BY PROTOPLAST FUSION METHOD
Kar, Bulent
Ganoderma is a cosmopolitan genus of fungi in many tree species. In this study, two wild Ganoderma lucidum strains that show the natural distribution in oak trees in the Mediterranean region (Alata and Balcali) were collected and their phylogenetic relationships based on the internal transcribed spacer rDNA region were defined and investigated. 3 equal phylogenetic trees were obtained using ITS sequences, the smallest of which was similar to 517 bp and the largest was similar to 836 bp, and the analysis of Maximum Likelihood (Kimura 2 and Tamura 3) and Maximum Parsimony (Bootstrap: 1000). G. lucidum strain in Turkey, unlike its European and Chinese relatives along with high bootstrap values (ML-K2P: 99%, ML-T2: 98%, and MP: 98%) they form a cluster with G. resinaceum. Moreover, results of phylogenetic analysis observing over 70% bootstrap (ML-K2P = 80%, ML-T3 = 79% and MP 86%) values of the G. lucidum samples in the study even among themselves creates an impression that these two strains arc a sub-strain of a new G. lucidum. RAPD method was used for molecular identification of hybrids acquired by protoplast regeneration. The difference between hybrid individuals was best identified as a result of RAPD analysis performed with primer no RAPD-GN X-17.
- MakaleYalnız künye2021Scopus SJRQ2Palaeoseismic behaviour of strike-slip faults in slowly deforming regions: palaeoearthquakes and long-term slip history of the Ovacik Fault (eastern Turkey)
Yazici, Muge; Zabci, Cengiz; Natal'in, Boris A.; Sançar, Taylan; Akyuz, H. Serdar
The Ovacik Fault (OF) is one of the internal structures of the Anatolian Block, located close to its eastern boundary. Although it shows a very clear surface trace, there are no instrumentally recorded surface rupturing earthquakes on this fault. This study concludes results of the first palaeoseismological trench study on the OF with the evidence for three surface rupturing earthquakes for the last 6 kyr. Structural, stratigraphical and geochronological constraints show that the oldest event happened between 4700 and 3022 BCE, whereas the penultimate event was between 2262 and 1643 BCE. The youngest event happened after 56 BCE, which we could only delimit from below because of the absence of any dateable material from the upper layers of the relevant horizons. The derived mean interevent time of these three palaeoevents is 2400 +/- 765 years. We could not correlate any of these palaeoevents with historical earthquakes due to the absence of records in catalogues for the region of interest. Moreover, we used cumulative offsets of the major drainages to calculate the long-term slip rate of 2.7 mm/year since the Pliocene, which exceeds slip rates of other internal faults of Anatolia almost by the factor of two. Our results do not only show significant deformation for the internal parts of Anatolia but also point out a seismic potential of the OF.
AtıfWoS5OpenAlex5İncele - MakaleYalnız künye2021Analysis of Studies on Motor Development Test and Physical Measurements in Pre-School Children between 2009-2019
Özcan, Ecesu; Güllü, Mehmet
Aims: The purpose of the present study is to conduct the content analysis of the international articles focused on the tests and physical measurements of the motor development of pre-school children and thus, to determine the trends in these articles between 2009-2019. Method: The articles were subjected to content analysis to analyse the articles to cover the descriptive information about the identity of the articles, the topic and publication year of the articles, methods and data collection tools, samples and data analysis methods used in the articles and discussion and results and suggestions sections of the articles. The collected data were interpreted on the basis of percentages and frequencies presented in tables and graphs. Results: According to the analysis of the data, the highest number of publications has been made on the applications physical activity programs. In the studies, the most frequently used data collection tools are physical measurements (motor test, anthropometric tests etc.). The motor tests and physical measurements were found to be the accelerometer. Conclusions: As a result, the research findings have drawn attention to the preference of physical activity program applications in preschool children, the intensity of studies for the 3-5 age group and the intensity of the accelerometer data collection tool.
- MakaleAçık Erişim2021Examination of The Attitudes of Cycling Athletes' Towards Ecorecreation
Albayrak, Veysel; Gacar, Atalay; Nacar, Eyyup; Tutar, Omer Faruk
Background: It is known that people's relations with nature can be greatly influential in all periods of their lives and especially in their future, which has increased their interest in concepts such as environment, nature, natural life, ecology, ecosystem as a result of the increase in natural awareness in humans. Aim: Based on these ideas, our research aims to measure the attitudes of cycling athletes in Elazig province towards ecorecreation.. Methods: A total of 178 athletes from 242 cycling athletes, including cycling sports clubs, associations, and individual athletes in Elazig province, participated voluntarily. It consists of 31 substances and 6 sub-dimensions developed by Ayyildiz and the 'Personal Information Form' prepared by the researchers as a data collection tool. Attitude Scale Towards Ecorecreation(ASTE), which was created in a 5-point Likert type format, was used. Spss 22.00 package program was used for the analysis of the data and the level of significance was determined as p<0.05. In the study, t-test analysis was applied to determine the significance of the differences between two groups and ANOVA was applied to determine the significance between more than two groups. Pearson correlation analysis was used to determine the direction and severity of the relationship between variables. Results: As a result of the research, there was a semantic difference in the individual and environmental sensitivities of licensed cycling athletes. A significant difference was observed in the Attitudes and Behavior towards Ecorecreation sub-dimensions of the athletes who are interested in another nature sport. Conclusion: The increase in positive behaviors towards nature has clearly become clear that it is directly related to being in nature. Accordingly, researchers believe and draw attention to the fact that in order to increase the positive effect on nature, it is necessary to be intertwined with nature and to adopt it.
- MakaleYalnız künye2021ANALYZING OF ATTITUDE LEVELS OF STUDENTS AT ELAZIG TOURISM VOCATIONAL HIGH SCHOOL TOWARDS PHYSICAL EDUCATION COURSE
Kizilkoca, Mustafa; Bozkir, Akif; Bingol, Hulya
Our study aimed to examine the attitude levels of students studying in Elazig Tourism Vocational High School towards Physical education course in terms of some variables. The target population of the study of the research consists of high school students studying in Elazig Tourism Vocational High School in 2019-2020. The sample of the research is 135 randomly selected high school students who studied at The Tourism Vocational High School in Elazig. To determine the demographic information of the subjects participating in the study, a personal information form (class, gender, education status of parents) and Physical Education Course Attitude Scale developed by Gullu and Guclu (2009) were used. Skewness and kurtosis tests were used to determine whether the data were normally distributed. As a result of these tests and controls, it was determined that the data of the research were parametric. Attitude levels for physical education courses are not statistically significant for the students studying at Elazig Tourism Vocational High School according to the gender and education status of parents variables. According to the class variable, attitude levels towards physical education courses were found to be statistically significant. According to the study findings, it is observed that the attitude level scores of students studying at Elazig Tourism Vocational High School for physical education are higher than the average with an average of 113.82.
- MakaleAçık Erişim2021Examining Addiction Levels of Tablet, Phone, and Computer Gaming According to the Parents' Opinions of Students Participating Summer Sports Schools
Albayrak, Veysel; Gacar, Atalay; Nacar, Eyyup; Tutar, Omer Faruk
Background: The universe of the research is the athletes of summer sports schools held in Elazig in 2021. The sample consists of the mothers of 669 randomly selected athletes from sports schools. Aim: The aim of the study is to examine the levels of gaming addiction according to the parental opinions of the students participating the 2021 Elazig Summer Sports Schools. Methods: In order to determine the demographic characteristics of the participants in the study, the personal information form(gender, age, school level, mother work status, child's tablet/phone ownership status), and an 18-item scale developed by Ulusoy (2019) was used. Analysis of the data in the research and the calculation of the results found were created through statistical programs in a computer environment. Frequency (f) and percentage (%) distributions of variables were calculated. The data were checked with skewness and kurtosis tests to determine whether they were normally distributed. As a result of these tests and controls, it was determined that the data of the research was parametric. Therefore, t test and variance analysis (Anova) test were used. The error level was taken as p<0.05 in the study. Results: It was determined that there was a statistically significant difference in computer game addiction depending on the gender, mother work status and tablet/phone/computer availability of the students participating summer sports schools in Elazig province. There was no statistically significant difference in computer game addiction depending on educational status and age variables. Conclusion: In line with the study findings, it was observed that the overall average of computer game addiction levels was below average at 45.30 within the framework of the parental opinions of the students participating summer sports schools in Elazig province.
AtıfOpenAlex1İncele - MakaleYalnız künye2021An Investigation of Receptive and Productive Morphological Knowledge of Derivational Suffixes in Turkish Learners of English
Tosun, Sibel; Onur, Fulya Eslek
Morphological awareness (MA) has been regarded as a profoundly important aspect of enhancing both vocabulary breadth and depth. As one of the predictors of morphological competence, knowledge of derivational suffixes has a crucial place among all morphemes because they have the ability to change word class. This descriptive study, which employed a quantitative approach, aimed to investigate students' receptive and productive knowledge of derivational class-changing suffixes and to identify to what extent they can produce appropriate derivatives in different word classes. Predictive roles of receptive and productive MA on writing achievement are also a subject of the current study. To achieve the purpose, 50 undergraduate EFL students studying at the School of Foreign Languages at a state university, whose ages ranged between 18 and 22 participated in the study. The results of the study indicated that the participants were significantly better at the receptive task than in productive task. It has also been found that productive MA uniquely predicts writing performance scores. The current study is noteworthy in that it aims to shed light on the strengths and weaknesses of the learners' morphological knowledge as well as provide insights for similar settings on the areas to specifically focus on while teaching derivational suffixes. (C) Association of Applied Linguistics. All rights reserved
- MakaleAçık Erişim2021Dynamic Connectedness between Sector Indices: Evidence from Borsa Istanbul
Ekinci, Ramazan; Gençyürek, Ahmet Galip
The aim of the study is to analyze the shock and volatility spillover between BIST Finance, Industry, Technology, Tourism, Transportation, Food, and Retail-Trade sectors. In this direction, daily data obtained between January 5, 2010, and December 4, 2020, were analyzed using a new method named TVP-VAR Diebold Yilmaz Spillover Index developed by Antonakakis et al. (2019). Our results indicate that the industrial and financial sectors are in the leading position in terms of the shock and volatility spillover, while other sectors generally are in the lagging position.
AtıfWoS4OpenAlex6TR Dizin3İncele - MakaleYalnız künye2021EFFECTS OF HEAVY METAL ON Tetraselmis chuii
Kutlu, Banu; Dorucu, Mustafa
We determined the toxic effects of seven metals. copper (Cu), manganese (Mn). zinc (Zn), cobalt (Co). molybdate (Mo), lead (Pb), and cadmium (Cd) on the microalgae Tefraselmis chuii (Butcher, 1959). We exposed 50 mL of cultivated microalgae (f/2 Gaillard) in the exponential growth phase. with three replicates, to concentrations of 0 (control). 0.1, 1.0, 5.0, 10, 25. and 50 g L of each metal for 72 hours. The cellular count was recorded daily to evaluate any potential lethal effects. An increase in cellular density was seen in the control treatment. All treatments exposed to metals showed a logarithmic increase in cell density within 48 hours, with a cellular decrease that became evident later on. This study result with an insignificant decrease at low concentrations of Cd, Pb, and Cu at 24 hour was probably attributed to their use as micronutrients at these low concentrations. The most lethal effect was observed with Cd treatment, which killed 50% of the microalgae population at a concentration of 0.62 mu g L-1. In this study, this concentration was three times lower than that of lead and mercury. while being ten times lower than that of cobalt and molybdate. To elucidate the adverse effects on seawater environments, the microalgae Tetraselmis chuii is recommended as a model species.
AtıfWoS3İncele - MakaleAçık Erişim2021Scopus SJRQ1The effect of the platelet-rich plasma and ozone therapy on tendon-to-bone healing in the rabbit rotator cuff repair model
Gurger, Murat; Once, Gokhan; Yilmaz, Erhan; Demir, Sukru; Calik, Ilknur; Say, Yakup; Kavakli, Ahmet; Key, Sefa; Gurbuz, Mustafa Umit; Bingollu, Onur
BackgroundThe aim of this study is to histologically and biomechanically investigate the effects of local PRP and ozone therapy (O2O3) on tendon-to-bone healing in a rabbit model of the supraspinatus tendon tear.MethodsFour groups were formed to have seven rabbits in each group: repair, R; repair + PRP, RP; repair + ozone, RO; and repair + PRP + ozone, RPO. The supraspinatus tendon was detached by sharp dissection from the footprint and an acute tear pattern was created. Thereafter, tendon repair was performed with the transosseous technique. In the RP group, PRP, and in the RPO group, PRP + O2O3 mixture was injected to the tendon repair site. In the RO group, O2O3 gas mixture was injected into subacromial space three times a week for a total of 4 weeks. The study was ended at postoperative 6th week.ResultsWhen compared with the R group, a statistically significant increase was observed in the biomechanical strength of the RP and RPO groups. The highest increase in biomechanical strength was detected in the RPO group. The histology of the RO and RPO groups showed better collagen fiber continuity and orientation than the R and RP groups.ConclusionsThe results obtained from this study show that the ozonized PRP can be used as biological support to increase tendon-to-bone healing. However, these results need to be supported by clinical studies.
AtıfWoS29OpenAlex35
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