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Koleksiyondaki öğeler
- MakaleAçık Erişim2022TURKEY'S LIBYA APPROACH AND IRINI OPERATION ON THE GREECE ISSUE
Gürdal, Elif; Ince, Fuat
After the overthrow of the Gaddafi administratio, UN and NATO intervention in Libyan lands took place, and then a political multi-headed structure emerged. Shortly before the overthrow of the Gaddafi administration, energy reserves of which workability was discovered have emerged in the Eastern Mediterranean. This discovery has been an important factor of the political confusion and the effort to carry out the power struggle between states through Libya. Greece tries to be effective in the political authority that is tried to be created in Libya and tries to passivate Turkey in the Aegean and the Mediterranean. In this power struggle, Turkey signed the Delimitation of The Maritime Jurisdiction Areas in The Mediterranean and Military Cooperation Agreements with the National Government of Accord in Libya both to respond to the defense of the Aegean land and sea areas occupied by Greece, to protect the jurisdiction rights in the Eastern Mediterranean and to protect the maritime jurisdictions belonging to the TRNC. These agreements disturbed other states in the region who were struggling for power. Therefore, the EU declared itself authority to control the arms embargo requested by the UN on Libya and launched the IRINI operation. However, the IRINI operation is seen as an attempt to squeeze Turkey in the Mediterranean region. In the light of these information and researches, this study is a qualitative research that handles Turkey's Eastern Mediterranean and Libya approach th
AtıfOpenAlex2TR Dizin2
İncele - MakaleAçık Erişim2025The Idea of Hanafism in Imam al-Rabbani and the Defense of Abu Hanifa
Karayígít, Iskender; Yilmaz, Fetullah
Imam al-Rabbani (d. 1034/1624), who came to the forefront in Islamic history mostly with his Sufi identity and was known as the sheikh of the order, although he mostly focused on Sufism, stood against the efforts to distort Islam during his lifetime and struggled in the theological and political fields. In this context, he made efforts to ensure the failure of Akbar Shah's (d. 1014/1605) project of Din-i Ilahi. In addition to his important works in the fields of sufism and theology, Imam al-Rabbani was also interested in many issues of Islamic jurisprudence (fiqh) and its history. As a person who inherited the legacy of his predecessors, he felt the need to speak on many issues related to fiqh. One of these is the criticism made about Ab & umacr; Hanifa (d. 150/767) and his school of thought. Imam al-Rabbani, especially in his work Makt & umacr;bat, was involved in the debates around the concepts of ahl al-ra'y and ahl al-hadith, and naturally tried to defend the Hanafi sect to which he belonged and its imam Ab & umacr; Hanifa with a number of evidences from different perspectives. He objected to the characterization of the Hanafi imams as mere ra'yists (lit. opinionists), stating that they accepted hadiths but also had their own methods of deriving rulings. Again, he was not contented with only some 'scientific' evidences in his discussion of Hanafism, but he also strengthened his defense with spiritual, allegorical, and mystical arguments, such as the similarity between Jesus Christ and Ab & umacr; Hanifa in ijtihad, the fact that Jesus would act in accordance with the Hanafi school of thought after his descent, and the fact that Hanafi sect possesses the perfection of prophethood. By responding to the claims of the opponents in this way, Imam al-Rabbani tried to justify the Hanafi school of thought. In this article, some of the spiritual-ischemic qualities that Imam al-Rabbani attributed to Hanaf is and his responses and defenses to the allegations put forward by some ahl al-hadith scholars will be discussed.
- MakaleAçık Erişim2025An Investigation into the Impact of Influencers Producing Technological Content on Instagram on Customers' Purchasing Decisions
Çelik, Kamil; Tas, Ahmet
Nowadays, social media influencers play a significant role in the world of marketing. Social media influencers reach large audiences by producing content on social media platforms, and they exert considerable impact on these audiences. The literature suggests that social media users form parasocial relationships, and these relationships develop based on the influencer's characteristics, such as attractiveness, expertise, credibility, and similarity. It has also been proven in various studies that social media influencers have a strong effect on increasing the purchasing intentions of their followers. In this study, the effects of social media influencers on parasocial relationships and the purchasing intentions of their followers were examined. The research was conducted among Instagram users in Turkey, and the data were collected using a survey method. The survey included statements aimed at measuring elements such as parasocial relationships, attractiveness, expertise, credibility, and similarity. Because of the data analysis, it was found that characteristics such as influencers' attractiveness and expertise strengthen parasocial relationships, and these relationships positively influence followers' purchasing intentions. Additionally, the perception of fairness also had a significant impact on these relationships. These findings suggest that social media influencers can be an effective tool in marketing strategies.
- MakaleAçık Erişim2025The interplay between university students' needs, maturity levels (personal, familial, and social), and life satisfaction
Akyüz, Ahmet Mutlu; Durmus, Ibrahim
It is essential for young Turkish individuals (university students) to rapidly develop their skills and abilities to take on leadership roles in society. To become well-equipped individuals who contribute to societal welfare and development, these young adults must undergo a healthy adolescent maturity process. Therefore, providing a supportive environment for Turkish adolescents during their maturation is crucial. This study investigates how fulfilling all hierarchical needs (PSN, LBN, ESAN) affects Turkish adolescents' life satisfaction (LS) and their personal (PM), familial (FM), and social (SM) maturity levels. The study sample consists of 397 Turkish university students. The proposed research model was tested using PLS-SEM analysis. The findings indicate that fulfilling all hierarchical needs positively affects life satisfaction. Additionally, life satisfaction serves as a mediator between the fulfillment of hierarchical needs and maturity levels. However, the most fundamental physical and security needs are not adequately met, hindering personal maturity. Furthermore, love and belonging needs and esteem and self-actualization needs positively impact all maturity levels.
- MakaleYalnız künye2011Scopus SJRQ2Numerical Approximations to Solution of Biochemical Reaction Model
Yildirim, Ahmet; Gökdogan, Ahmet; Merdan, Mehmet
In this paper, approximate analytical solution of biochemical reaction model is used by the multi-step differential transform method (MsDTM) based on classical differential transformation method (DTM). Numerical results are compared to those obtained by the fourth-order Runge-Kutta method to illustrate the preciseness and effectiveness of the proposed method. Results are given explicit and graphical form.
AtıfWoS1İncele - MakaleYalnız künye2024Scopus SJRQ4Investigation of Corrosion Properties of LA-91 Alloy Coated with MAO Method
Sukuroglu, Suleyman; Totik, Yasar; Sukuroglu, Ebru Emine; Avci, Selcuk
LA91 magnesium alloy is a super lightweight magnesium -lithium alloy proposed for next generation materials. In addition to the advantages of these alloys such as low density, high strength-to -weight ratio, specific stiffness and brittleness, these alloys also have disadvantages such as low corrosion resistance and the oxide -carbonate film formed on the surfaces of the alloys cannot provide sufficient corrosion protection even in non-corrosive environments. In this study, micro arc oxidation, one of the coating methods, was applied to LA91 alloy. The surface morphologies of the coatings were characterized and it was aimed to increase the corrosion resistance of LA91 alloy. For this purpose, potentiodynamic polarization tests were carried out in 3.5% NaCl solution at room temperature to draw attention to the protection of the coating. As a result of the tests, it was determined that the oxide coatings raised on the surface
AtıfWoS2İncele - MakaleYalnız künye2016The Relationship between Taxation and Democracy: Panel Causality Analysis for Developing Countries
Türedi, Salih; Topal, Mehmet Hanefi
This study analysis the relation between democracy and taxation in the context of developing countries. At the end of empirical analysis covering 60 countries by focusing on the period of 2006-2012, findings showing a two-way causality relation between taxation and democracy were reached. Accordingly, an increase in taxation level affects rule of law, organizational right, freedom of expression and belief positively in the countries analyzed. Briefly, it plays a vital role in the development of democracy by making a contribution to the enhancement of civil liberties. On the other hand, improvements in democratic rights and freedoms increase the number of citizens paying their taxes in full and on time, thus increases taxation level, by strengthening the harmony between citizens and state.
AtıfWoS1TR Dizin11İncele - MakaleYalnız künye2023Scopus SJRQ2Simultaneous design of morphing hexarotor and autopilot system by using deep neural network and SPSA
Kose, Oguz; Oktay, Tugrul
PurposeThe purpose of this paper is to optimize the simultaneous flight performance of a hexarotor unmanned aerial vehicle (UAV) by using simultaneous perturbation stochastic approximation (i.e. SPSA), deep neural network and proportional integral derivative (i.e. PID) according to varying arm length (i.e. morphing). Design/methodology/approachIn this paper, proper PID gain coefficients and morphing ratio were obtained using the stochastic optimization method, also known as SPSA to maximize flight efficiency. Because it is difficult to establish an analytical connection between the morphing ratio and hexarotor moments of inertia, the deep neural network was used to obtain the moments of inertia according to the morphing ratio. By using SPSA and deep neural network, the best performance indexes were obtained and both longitudinal and lateral flight simulations were performed with the obtained data. FindingsWith SPSA, the best PID coefficients and morphing ratio are obtained for both longitudinal and lateral flight. Because the hexarotor solid body model changes according to the morphing ratio, the moment of inertia values used in the simulations also change. According to the morphing ratio, the moment of inertia values was obtained with the deep neural network over a created data set. Research limitations/implicationsIt takes a long time to obtain the morphing ratio suitable for the hexarotor model and the PID gain coefficients suitable for this morphing ratio. However, this situation can be overcome with the proposed SPSA. In addition, it takes a long time to obtain the appropriate moments of inertia according to the morphing ratio. However, in this case, it was overcome using the deep neural network. Practical implicationsDetermining the morphing ratio and PID gain coefficients using the optimization method, as well as determining the moments of inertia using the deep neural network, is very useful as it can increase the efficiency of hexarotor flight and flight efficiently with different arm lengths. With the proposed method, the hexarotor design performance criteria (i.e. rise time, settling time and overshoot) values were significantly improved compared to similar studies. Social implicationsDetermining the hexarotor flight parameters using SPSA and deep neural network provides advantages in terms of time, cost and applicability. Originality/valueThe hexarotor flight efficiency is improved with the proposed SPSA and deep neural network approaches. In addition, the desired flight parameters can be obtained more quickly and reliably with the proposed approaches. The design performance criteria were also improved, enabling the hexarotor UAV to follow the given trajectory in the best way and providing convenience for end users. SPSA was preferred because it converged faster than other methods. While other methods perform 2n operations per iteration, SPSA only performs two operations. To obtain the moment of inertia, many physical parameter values of the UAV are required in the existing methods. In the proposed method, by creating a date set, only arm length and moment of inertia were estimated without the need to obtain physical parameters with the deep neural network structure.
AtıfWoS48OpenAlex47İncele - MakaleYalnız künye2023(k, m)-TYPE SLANT HELICES FOR THE NULL CARTAN CURVE WITH THE BISHOP FRAME IN E41
Mazlum, Sumeyye Gur; Bektas, Mehmet
In this paper, we obtain (k, m)-type slant helices for a null Cartan curve with the Bishop frame in Minkowski space E41 .
AtıfWoS1İncele - MakaleYalnız künye2022Scopus SJRQ1Analysis of discontinuous contact problem in two functionally graded layers resting on a rigid plane by using finite element method
Polat, Alper; Kaya, Yusuf
In this study, the problem of discontinuous contact in two functionally graded (FG) layers resting on a rigid plane and loaded by two rigid blocks is solved by the finite element method (FEM). Separate analyzes are made for the cases where the top surfaces of the problem layers are metal, the bottom surfaces are ceramic and the top surfaces are ceramic and the bottom surfaces are metal. For the problem, it is accepted that all surfaces are frictionless. A two-dimensional FEM analysis of the problem is made by using a special macro added to the ANSYS package program The solution of this study, which has no analytical solution in the literature, is given with FEM. Analyzes are made by loading different Q and P loads on the blocks. The normal stress (sigma y) distributions at the interfaces of FG layers and between the substrate and the rigid plane interface are obtained. In addition, the starting and ending points of the separations between these surfaces are determined. The normal stresses (sigma x, sigma y) and shear stresses (tau xy) at the point of separation are obtained along the depth. The results obtained are shown in graphics and tables. With this method, effective results are obtained in a very short time. In addition, analytically complex and long problems can be solved with this method.
AtıfWoS23OpenAlex2İncele - MakaleAçık Erişim2020The Scale of Allah Imagination
Karaca, Faruk; Hacikelesoglu, Hizir
In this study, a culture-sensitive measurement tool was developed to measure the imaginary forms of God. Psychometric analysis conducted with scale showed that the scale is reliable and valid enough. The scale of Allah imagination has a structure consisting of four factors and 19 items that explain 50.35% of the total variance. According to factor analysis, the first factor is Dismissive God image (careless), the second factor is Frightening God (fear-punishment oriented), the third factor is Loving and Frightening God (balanced), and the fourth factor is Loving God (love oriented). As a result of confirmatory factor analysis, the four-factor structure of the scale was confirmed. Cronbach's alpha, which is regarded as a criterion for internal consistency, is measured as proportional to=.61 for the scale of Allah Imagination. While the same items were analyzed via split half method, it is seen that the coefficient of correlation is.69. The correlation coefficient between the results of two measurements with 53 people and 10 days interval was calculated as.69, (p <.01). As a result of the analysis, it can be stated that the scale of Allah imagination is a valid and reliable measurement tool.
AtıfWoS5OpenAlex13TR Dizin8İncele - MakaleAçık Erişim2021Effects of Using Solar Water Heating System on Fuelwood Consumption in Forest Villages
Çakir, Gunay; Tonyali, Suleyman
Ain of study: In this study, the effects of the use of solar water heating system of forest villagers in Gumushane were investigated. Material and methods: For this purpose, random selected by 70 forest village households were examined and the results were analyzed by One Sample T-Test. Within the scope of the research, face-to-face surveys were conducted with the families with the villagers who were determined with information provided by Department of Forest-Village Relations. The villagers were chosen among those who had used this solar energy heating system for at least 5 years. The data in the questionnaires were transferred to digital media and it was tried to determine how the forest villagers were affected by solar water heating systems. Main results: As a result, after the use of solar water heating systems; the consumption of firewood for heating has not changed. The consumption of wood used for cooking and the consumption of wood used for hot water has also decreased. Highlights: Thanks to this solar water heating system, carbon accumulation in forests has increased and a positive contribution has been made to climate change.
- MakaleAçık Erişim2024Individual Earthquake Preparedness of Residents in Istanbul: Social and Cognitive Determinants
Topal, Mehmet Hanefi; Simsek, Kubra; Baspinar, Adem
This study aims to identify the social and cognitive factors that influence individual-level earthquake preparedness among Istanbul residents by using an extended model that incorporates earthquake risk perception within the framework of social cognitive theory (SCT). A survey of 411 participants was conducted, and data analysis was performed using structural equation modeling (SEM). The findings strongly support the SCT assertions, revealing that social factors (such as social trust and subjective norms) and cognitive factors (including outcome expectations and self-efficacy) are key predictors of earthquake risk perception. However, earthquake preparedness behavior was found to be more closely associated with cognitive factors, particularly self-efficacy and risk perception, with subjective norms being the only social factor influencing preparedness behavior. These results that policymakers and practitioners should focus on disaster education, awareness, and participation to promote individual preparedness and mitigate disaster risk.
AtıfWoS6OpenAlex6İncele - MakaleAçık Erişim2023Assessing Spatio-Temporal Change and Dynamics of Forest Ecosystem Succession Using Patch Analysis
Sivrikaya, Fatih; Çakir, Gunay
Aim of study: This study focuses on creating a secondary forest succession (SFS) map between 1972 and 2014 according to the Clementsian theory based on land cover, assessing the spatio-temporal pattern of forest succession change, and determining the factors affecting the forest ecosystem.Area of study: This study was conducted at the cermik Forest Enterprise (FE) in Diyarbakir city, located in the Southeastern Anatolia Region of Turkiye.Material and methods: Clementsian theory, Remote Sensing (RS), and Geographical Information System (GIS) were used to generate the SFS map. Patch Analyst 4.0 was used to determine changes in spatiotemporal patterns with landscape indices.Main results: The total forested area increased from 32405.1 ha (13% of the study area) in 1972 to 45054.7 ha (18% of the study area) in 2014, with a net increase of 12649.6 ha. It was determined that the progressive succession area was 87736.7 ha, the regressive succession area was 39216.5 ha, and the unchanged succession area was approximately 129989.6 ha. The number of patches increased over a 42 -year period.Research highlights: The forest ecosystem was more fragmented, with patches becoming more irregular, complex, and edgy.
- BildiriYalnız künye2015Virtual Mouse Control with Hand Gesture Information Extraction and Tracking
Dogan, Ramazan Ozgur; Dogan, Hulya; Köse, Cemal
Virtual mouse implemented with hand gesture tracking based on image is one of studies in human-computer interaction. In this study that human-computer interaction is implemented with virtual mouse is purposed. This study consists of three main steps that are hand gesture tracking, features of hand region extraction and classification of these features. In this study hand gesture tracking is generated with Camshift (Continuously Adaptive Mean Shift) algorithm, features of hand gestures are extracted with bag of visual words and these features are classified with support vector machines. Detailed tests are performed to compare success of tracking, features extraction and classisfication methods and that this system works successfully is shown.
AtıfWoS1İncele - MakaleAçık Erişim2024Scopus SJRQ1Investigation of the effects of white tea on liver fibrosis: An experimental animal model
Yilmaz, Huelya Kilic; Türker, Merve; Kutlu, Eda Yilmaz; Mercantepe, Tolga; Pinarbas, Esra; Tümkaya, Levent; Atak, Mehtap
Liver fibrosis is a common, progressive disease that affects millions of patients worldwide. In this study, it was aimed at investigating the effect of white tea on liver fibrosis in an in-vivo environment by creating an experimental liver fibrosis model on rats. In this study, an experimental liver fibrosis model was created with carbon tetrachloride (CCl4) in Sprague-Dawley rats to investigate the effect of white tea on liver fibrosis. Rats are treated with CCl4 (1 mL/kg) to constitute the liver fibrosis model. White tea was given ad libitum with drinking water. As a result of the study, liver tissue hydroxyproline levels were found to be significantly lower (p = .001) in the white tea group. Histopathologically, it was found that the liver tissue histopathological damage score (LHDS) and fibrosis scoring were significantly lower (p < .001) in the white tea group. However, although it was not statistically significant in the group given white tea, compared with the fibrosis group, it was found that the malondialdehyde (MDA) level in the liver tissues was lower, the glutathione (GSH) level was higher, and the serum alanine aminotransferase (ALT) levels were lower. The study explained the effect of white tea on liver fibrosis and suggested that white tea might be beneficial in reducing the progression of liver fibrosis.
AtıfWoS5OpenAlex6İncele - MakaleYalnız künye2015Scopus SJRQ2PRESSURE-DRIVEN LAMINAR PULSATING FLOW IN A PIPE: EFFECT OF THE AMPLITUDE
Aygün, Cemalettin; Aydin, Orhan
In this study, pressure-driven laminar pulsating flow in a pipe is examined numerically. Both the hydrodynamically developing flow and fully developed conditions are considered. A commercially available CFD package, FLUENT, is used in the simulations. A constant value of the time-averaged Reynolds number is considered, Re=1000. Six different values of the dimensionless frequency (F=0.01, 0.1, 1, 10, 100, 1000) and three different values of the dimensionless amplitude (A=0.1, 0.5 and 0.95) are considered. Both the hydrodynamically developing and fully developed flows are analyzed. Effects of the amplitude and frequency of the pulsating inlet velocity on the friction coefficient as well as velocity field are predicted.
AtıfWoS1İncele - MakaleAçık Erişim2014Scopus SJRQ3A 9-kg Ovarian Mucinous Cystadenoma in a 14-Year-Old Premenarchal Girl
Biçer, Senol; Erkul, Zehra; Demiryilmaz, Ismail; Peker, Necla
Patient: Female, 14 Final Diagnosis: Ovarian mucinous cystadenoma Symptoms: Abdominal enlargement center dot abdominal pain center dot constipation Medication: - Clinical Procedure: Specialty: Obstetrics and Gynecology Objective: Rare disease Background: Although ovarian tumors are most commonly observed in adults, they relatively rarely occur in children. The majority of ovarian masses encountered in the premenarchal or childhood stages are non-neoplastic lesions such as benign functional cysts. Epithelial tumors account for 8-10% of all ovarian tumors and are histologically classified as mucinous or serous. The most common benign epithelial ovarian tumor is cystadenoma. Case Report: We report the case of a 14-year-old premenarchal girl with chronic abdominal pain, constipation, and abdominal enlargement. A computed tomography detected a huge left ovarian cystic tumor. A 9-kg ovarian tumor was removed surgically. Pathology showed a benign mucinous cystadenoma (MCA). Conclusions: Ovarian neoplasms in children present a diagnostic quandary, and very often the diagnoses are missed or delayed. When the diagnosis is made, a prompt and fertility- preserving surgical treatment must be performed and followed to prevent recurrence.
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İncele - MakaleAçık Erişim2019Validity of Unemployment Hysteresis: The Most Fragile Five Developing Countries
Akkus, Omer; Topuz, Seher Gulsah
This study investigates the movement of unemployment for five most fragile developing countries including Turkey over the period 1980-2016. For this purpose, which one of the three approaches within the theoretical literature natural unemployment rate hypothesis, unemployment hysteresis or structuralist theory of unemployment is valid is examined using traditional unit root and unit root tests allowing for structural breaks. Hypothesis of unemployment hysteresis is valid for five most fragile developing countries according to both results of traditional unit root and unit root test allowing for structural breaks. Namely, unemployment rate does not fluctuate around natural unemployment rate and therefore the results indicate that shocks do not create temporary effects on unemployment but permanent. Governments in five most fragile developing countries are expected to actively intervene in the policy on unemployment since the unemployment rate does not tend to return to its natural level.
AtıfWoS5OpenAlex17İncele - BildiriAçık Erişim2019POLITICAL POLARIZATION, INCOME INEQUALITY AND SIZE OF GOVERNMENT
Akdede, Sacit Hadi; Keyifli, Nazli
This paper empirically investigates the determinants of political polarization. Size of government and income distribution are the main independent variables along with other controlling variables. The statistical analysis uses panel data econometric. The sample of countries includes 57 countries and time period spans between 1990 and 2015. Results of regressions analysis indicates that increased income inequality increases political polarization. Political polarization is derived from World Values Survey (WVS). It is measured as standard deviation of responses to the question what is role for government. In addition, results of our empirical indicates that increased government size reduces the political polarization. The paper explains the links for these findings. It concludes with some policy implications.
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