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- MakaleYalnız künye2016Scopus SJRQ2Therotical investigation of the effects of diesel fuel, biodiesel fuel and their blends on internal combsution engines
Sezer, Ismet
In this study; the effects of diesel fuel, the soybean oil methyl ester (SOME) biodiesel fuel and their blends at various percentages on the spray and combustion characteristics and engine performance and exhaust emissions of diesel engines investigated as theoretically. For this purpose, a model has been built for a direct injection diesel engine in a commercial vehicle by the Diesel-RK software program that can be used liberally on the net. The obtained values for diesel (D) and biodiesel (BD) fuels and D-BD fuel blends via the constructed model were compared. The results of the study show that BD fuel generally provides a close brake thermal efficiency values to diesel fuel. Additionally, BD fuel causes decrements in engine power and particulate matter (PM-soot) emission and increments in specific fuel consumption and nitric oxides (NOx) emission. On the other hand, D-BD fuel blends at various blend ratios have usually given the spray, combustion, performance, and emission values between those of diesel and biodiesel fuels.
AtıfWoS9OpenAlex3TR Dizin7
İncele - MakaleAçık Erişim2017Reflections of the Terrorist Attacks in 2016 on Humor Magazines
Türten, Elif
Cartoon and politics have been in close relationship throughout the history of the press. Political structure of the period, social events that developed due to the political or political events that took place at that time and political actors are reflected on the caricatures and humor magazines. In our country, the year 2016 was very intense in terms of agenda. 27 terrorist attacks took place throughout 2016. During these attacks, hundreds of people lost their lives and thousands were injured. In the study, it was investigated how the terrorist incidents in 2016, which the country experienced in a state of mourning, were handled in the humor magazines, how much space was provided and how the terrorist incidents were evaluated. In this regard, the research question is set as how the political trends and ideological structures of the humor magazines that are the subject of study are reflected in the cartoons. In this context, cover pages of Penguin, Girgir and Uykusuz Magazines were used as a method of critical discourse analysis by Teun van Dijk. These magazines were selected because they constitute important examples of political cartoons and have a large reader base in Turkey. As a result of the examination, 8 cover pages were drawn in Penguen Magazine, 6 in Girgir Magazine and 7 in Uykusuz Magazine. A total of 21 cover pages were examined in the study. The Penguen Magazine approached at people who were exposed to terrorist incidents. Girgir Magazine criticized the events. However, the most serious criticism about the subject was made by Uykusuz Magazine. In general, disappointment from terrorist events has found place in cartoons.
- MakaleYalnız künye2022The Problem of Mental Causation in John Searle's Theory of Consciousness
Kaya, Asli Uner
Some philosophers of mind claim that non-reductionist physicalist theories of the mind cannot explain the causal interaction between consciousness and the physical world. The problem is about explaining how consciousness, which cannot be reduced to physical processes, interacts with the physical world without violating the laws of physics. John Searle claims to have solved the problem of mental causation in his theory of mind, which he calls Biological Naturalism, exhibiting a non-reductionist attitude. In this study, I aim to evaluate Searle's solution to the problem of mental causation. For this purpose, I will first touch on mental causation and how it is understood. Then, I will outline the problem and address the specific criticisms against non-reductionist physicalists. Finally, considering these criticisms, I will show under what conditions Searle's solution to the problem of mental causation can be accepted as correct.
AtıfTR Dizin2İncele - MakaleAçık Erişim2023Foreign Aid, Institutions, and Economic Performance in Developing Countries
Hayaloglu, Pinar
Although official development assistance presents a solution for developing countries to overcome the lack of capital, there is no consensus in the literature on the effectiveness of foreign aid. Moreover, opinions claiming that aid can only affect growth positively under certain conditions see institutional quality as an essential aspect that boosts the positive impact of aid. This study examines the relationships between foreign aid, institutional structure, and economic performance for 80 countries in Europe, America, Africa, and Asia. It is found that official development assistance and the quality of institutional structure in the sample countries affect economic growth positively. It also provides some suggestive evidence showing that foreign aid has a positive effect on the institutional structure.
AtıfWoS3OpenAlex4TR Dizin1İncele - MakaleYalnız künye2012About Chinese Qur'an Studies From the To the Present
Kurban, Nur Ahmet
In this study we take aim at introducing the relations between Chinese Muslims whom we have not enough information and Koran and their studies about Koran. In this context, generally, determination of relation between Chine Muslims and Koran became very important. Especially, the center of the subject is their acquaintance with the Koran and relation with it later on. So, the works which are about their translation and interpretation of Koran should be examined in detail. Especially, a person who becomes prominent with the studies about Koran and their works which may be an independent subject of research is highly important.
- MakaleAçık Erişim2025Fragile Routes: The Impact of Israel's Confrontational Policies on Trade Routes
Sancak, Kadir
The geopolitical position of the Middle East has a strategic value in the functioning of Eurasian trade routes. Accordingly, security issues in the region directly affect the realization and sustainability of trade projects. Israels Palestinian policies disrupt the security balance in the Middle East, posing risks to major trade projects such as the Belt and Road Initiative, the IMEC Project and the Development Road. Recognizing that trade and security are inextricably linked, this study examines the current state and future of these projects from a security perspective. Based on a comprehensive literature review using qualitative analysis, this study evaluates the effects of instability in the Middle East on trade routes. The study reveals that trade projects in the region will be at risk of instability unless security issues are resolved. The first part of the study discusses the relationship between trade and security in a conceptual framework. Then, Israel's Palestinian policies are briefly touched upon and it is stated that these policies negatively affect the security of the Middle East. In the last part, major trade projects are discussed and how these projects are affected by Israel's policies. The findings show that the Southern Corridor of the Belt and Road Initiative has a fragile structure, the IMEC Project cannot be realized due to security problems, and the Development Road offers a more reliable alternative under current conditions. If security and stability cannot be ensured in the Middle East, it is anticipated that it will be difficult for trade projects to operate permanently and effectively.
AtıfOpenAlex1İncele - MakaleYalnız künye2011Scopus SJRQ1A slab detachment and delamination model for the generation of Carboniferous high-potassium I-type magmatism in the Eastern Pontides, NE Turkey: The Kose composite pluton
Dokuz, Abdurrahman
The Hercynian Kose composite pluton (KCP) is located in the Eastern Pontides, Turkey, and consists of two units of high-K calc-alkaline, primarily peraluminous granites: (i) the internal body, and (ii) the external body. The internal body, which was emplaced at 322-318 Ma ((40)Ar/(39)Ar ages on biotite and hornblende, respectively), displays a wide compositional range (49-71 wt.% SiO(2)) and contains several lithologies: hybrid equigranular rocks, microgranular magmatic enclaves, mafic dikes, porphyry dikes and mylonites. The external body, which was emplaced at 306.7 Ma ((40)Ar/(39)Ar age on K-feldspar), consists exclusively of monzogranite (> 71 wt.% SiO(2)). Field relationships, mineralogy, major- and trace element geochemistry, and initial Sr-Nd isotope values (I(sr)= 0.70821 to 0.71002, e(Nd)(t) = -6.6 to -8.0) show that the internal body was differentiated and evolved by crystal fractionation and magma mixing processes. The end-members of the mixing process were a mafic rock and a felsic rock. Mafic magma was derived from a relatively deep-seated (25-30 km) crustal storage reservoir, not directly from the mantle, and underwent significant differentiation by fractional crystallization and crustal contamination before mixing. In addition, these magma storages probably supplied the additional heat necessary to initiate crustal melting. Some of the additional heat may have also been released by the radiogenic decay of heat producing elements. Eventually, the existing felsic magma from the melting of K-bearing meta-greywackes was raised to its emplacement level at a depth of similar to 10-16 km. After partial crystallization, it was sporadically intruded by modified mafic magma from the deeper crustal reservoir to generate hybrid rocks. The hybrid rocks were then elevated to a shallower depth by normal faults during the collapse of the orogen and erosion. Mylonites that were later overprinted by pseudotachylites are typically constrained to the internal body and are regarded as markers of this event. The external body is characterized by a significantly less radiogenic and limited range of Sr-Nd isotope values (I(sr)= 0.70639 to 0. 70792, e(Nd)(t) = -4.4 to -6.5) than those of the internal body and a lack of rocks documenting the open system differentiation processes. Fractional crystallization is the exclusive process responsible for the elemental range within the body. The rocks also contain less biotite relative to those of the internal body. All these involve less K-bearing mid-crustal rocks (orthogneisses) in their source, which was probably located at depths near the lower crust. The absence of purely lower crustal-derived melts can be explained by the removal of this type of material during the formation of the parental melt. This melt later ascended to its emplacement level at a depth of around similar to 5-10 km and cut the hybrid rocks of the internal body and regional metamorphic rocks that had been raised previously due to ongoing erosion. The melt that injected into the cracks of the internal body crystallized into porphyries because there was not enough time for the entire crystallization of magma. The data presented here indicate that late Early Carboniferous and Late Carboniferous magmatism occurred in a collisional setting. Slab detachment and subsequent delamination seem to be the most plausible mechanisms for the generation of the Hercynian high-K calc-alkaline magmatism in the Eastern Pontides, Turkey. (C) 2010 International Associatio for Gondwana Research. Published by Elsevier B.V. All rights reserved.
AtıfWoS221İncele - MakaleYalnız künye2012Scopus SJRQ2EXPERIMENTAL INVESTIGATION THE EFFECTS OF DIETHYL ETHER-DIESEL FUEL BLENDS ON THE ENGINE PERFORMANCE
Sezer, Ismet
In this study, the effects of diethyl ether (DEE)-diesel fuel blends on the performance of a diesel engine investigated experimentally. The blends were prepared with the addition of 2.5, 5, 7.5, and 10 vol. % of DEE with a specified amount of diesel fuel. In the experiments, a single cylinder direct injection (DI) diesel experimental engine was used and compression ratio was fixed at 20. The experiments were performed with neat diesel fuel and DEE-diesel fuel blends at various engine speeds and wide open throttle conditions. The results of the study show that DEE addition to diesel fuel causes to decrease in engine performance parameters, i.e., brake mean effective pressure, brake torque and brake power. The decrement in performance parameters increased with increasing blending ratio. The maximum decrement in brake mean effective pressure was obtained with DEE10 blend as about 5.1%. However, brake thermal efficiency increases and brake specific fuel consumption decreases up to 7.5% DEE blending ratio. The maximum increment in brake thermal efficiency was obtained with DEE7.5 blend as about 10.9%. The same fuel blend gives about 8.7% reduction in brake specific fuel consumption. Additionally, exhaust gas temperature decreases and air excess coefficient increases with increasing DEE blending ratio.
AtıfWoS4İncele - MakaleAçık Erişim2018Comparing Physics Textbooks in Terms of Assessment and Evaluation Tools
Takaoglu, Zeynep Baskan
Assessment and evaluation instruments provide teachers the opportunity of shaping education in the beginning, contributing to education during the process and evaluating education at the end of the process. Textbooks, on the other hand, are resources that present the aforementioned contributions to teachers at first hand. Thus, the study aims to compare the distribution of assessment and evaluation instruments in the physics textbooks being used in the academic year of 2011-2012 and 2016-2017 according to units, settlement within units and types of assessment instruments that are used. For that purpose, 9, 10, 11 and 12th grade textbooks being used in physics lessons in the academic year of 2011-2012 and 2016-2017 were examined via document analysis method. As a result of the study, it was determined that the highest number of assessment instruments in physics textbooks from two different years was encountered in the unit of force and motion. The reason for this unit having higher number of questions could be associated with higher number of mathematical operations in the unit intended for allowing students to overcome their mathematical deficiencies by practicing such questions. It was observed that the number of questions was increased especially in the books being used in the academic year of 2016-2017 and alternative assessment instruments were fewer than traditional assessment instruments. Traditional assessment instruments are still used very frequently in the textbooks, which proves the effect of traditional approaches in assessment and evaluation. Another reason for this condition is that a result-oriented evaluation is used in the university entrance exam. In the light of these results, it is suggested to make the university exam student-centered rather than making an arrangement in textbooks.
AtıfWoS1OpenAlex4TR Dizin3İncele - BildiriYalnız künye2018IDENTITIES AND LIFESTYLES IN THE AGE OF MEDIATISATION: AN APPROACH OF UNIVERSAL PRAGMATICS FOR COMPERATIVE ANALYSIS OF MAGAZINE PAGES FROM USA AND TURKEY
Okuroglu, Mehmet Selahattin
As the communication apparatus of modern system, mass media is still determinative for forming and disseminating life-styles. Since the emergence of welfare societies, presentation of life-styles in media has been considered as a tool to make use of working masses' leisure to gain profit and consent. However, from the viewpoint of critical theory, situation is more complex, relating to every aspects of modern life and shaping the ways of socialisation worldwide. The theoretical approach can be offered as a frame for utilizing pragmatics which has been used relatively rare in media studies. Based on this approach, any selected texts or the meanings of texts are not significant, unless they are connected to actions in the society. Therefore, the subject of consideration should be the arguments to be presented to individuals prior to personal actions. To transfer the focus of analyse from the texts to the arguments and to the persuasion, as a linguistic and cognitive process experienced in social level, thematic units in media texts were identified and counted. These groups of symbols or words are the units motivating individuals to choose consumption agendas or life-styles. The method of analysis in this essay had been offered in a former essay of the author, in a theoretical level. In this study, the application of method was demonstrated on magazine contents. Along with the application, theoretical approach has been modified with the help of the author's doctoral thesis, as the theory of critical media literacy. The essay's problem is the examination of magazine contents as argumentation units of instrumentalist system. Accommodating instrumental rationality within the mediated communication, similar journalistic codes can be adopted by media organizations in different countries. Therefore, in the context of globalization, celebrities page of CNN news site from USA and magazine page (Kelebek) of Hurriyet news site from Turkey were analysed. These sites could be approved for any studies because of their outstanding roles in monopolistic media groups. In addition to this, CNN has a global recognition due to the central position of USA for the system. In this case, magazine content themes, which use to construct schemas of perception and coverage at all, has been analysed as indicators of a global process persisting from the centre to the periphery. Results supported such a common process with some local differences. The method of the study can be considered a tool to describe mediatisation as a global process.
- MakaleAçık Erişim2020The Effect of Satisfaction of Basic Psychological Needs on Sporting Behavior in Physical Education
Turkay, Hikmet
In order to examine the basic psychological needs of the students, 372 students studying in secondary schools were selected. In the research, it was found that there were differences between the students according to age, gender, participation in out-of-school activities, and social identification variables. As a result, it can be said that there was a relationship between the satisfaction of basic psychological needs of individuals and sporting behaviour in physical education.
- MakaleAçık Erişim2021A Research on The Relationship Between Social Media Disorder, Religiosity and Moral Disengagement In Adolescents
Hacikelesoglu, Hizir
Moral disengagement is a phenomenon that is at the centre of life in terms of being frequently referred to in social life. The fact that young people (as moral agents) are at the centre of criticism on moral issues makes it necessary to examine the areas in which young people are engaged and affected during this period. In this context, the present study aims to examine the relationship between social media addiction, religiosity and moral disengagement on a sample group of individuals aged 13-18. For this purpose, the research was designed according to the relational screening model, one of the quantitative research methods. The research data were collected through a sample group consisting of 415 people selected by the convenience sampling method. In the analysis of the obtained data, correlation and regression analyzes were performed by using SPSS 21. As a result of the research, there is a positive relationship between social media addiction and moral disengagement. On the other hand, a negative relationship was found between religiousness and moral disengagement. It has been determined that social media addiction and religiousness predict moral disengagement in opposite directions. In addition, it has been observed that religiosity is not a determining factor on social media addiction.
AtıfWoS5OpenAlex20TR Dizin15İncele - MakaleYalnız künye2021Scopus SJRQ3THE ROLE OF GENDER IN THE INVESTIGATION AT REGIONAL LEVEL FOR TURKEY
Çelik, Orkun; Erer, Elif
We aim to explore the role of gender in the government expenditure and unemployment nexus at regional level for Turkey. For this aim, we use the dataset covering the period 2004-2019 for 26 NUTS-2 regions in Turkey and employ a panel ARDL approach. The obtained empirical findings show that government expenditure and gross domestic product per capita provide overall, female, and male unemployment rates to diminish in the long term, which means the Keynesian approach is valid on the long term. Nevertheless, on the short term, government expenditure induces rises in the male and female unemployment rates. This result indicates the validation of the Abrams Curve Hypotesis in male and female unemployment rates on the short term. Also, inflation rate increases overall and male unemployment rate on the long term, but having significant and positive impact on only female unemployment rate on the short term. All these findings show that gender has a significant role in this nexus. The expected contribution of this study to literature is to investigate the impact of government expenditure on unemployment by gender at regional level for Turkey. We are of opinion that our empirical findings can guide policy makers in active plans fighting unemployment.
- MakaleAçık Erişim2021Financial Stress and Buffer Effects of Trust in Policies in Business Life During the COVID-19 Pandemic
Günay, Hamdi Furkan
This study aimed to investigate the determinants of financial stress experienced in working life during the COVID-19 pandemic process in Turkey, and also the role of the confidence placed for the government pandemic action policies in reducing financial stress. For this purpose, online survey data obtained from 414 employees were analyzed with multivariate statistical methods. As a result of the analysis, the significant effect of job insecurity and pay satisfaction on financial stress was determined. Although it was found that trust in the policies against pandemics was effective in reducing financial stress, a significant moderating effect of trust in policies was not found in the relationship of other factors with financial stress. It is recommended to prevent practices that may cause revenue and employment losses in businesses and closely monitor the steps taken to inhibit abuse in this area accordingly.
AtıfWoS2OpenAlex4TR Dizin1İncele - MakaleYalnız künye2024Scopus SJRQ4A NEW HARVESTMAN GENUS RECORD OR TURKEY: KOVALIUS TCHEMERİS, 2023 (OPİLİONES: SCLEROSOMATIDAE, LEIOBUNINAE)1
Kurt, Kemal
The genus Kovalius is recorded as new for the Turkish harvestman fauna by the collection of Kovalius logunovi Tchemeris, 2023 from K & uuml;rt & uuml;n district of G & uuml;m & uuml;& scedil;hane province, Turkey. Brief morphological descriptions are provided for the newly record species. Also, the genital morphology of the female was described and photographed for the first time.
- MakaleAçık Erişim2025Scopus SJRQ3Electricity in Ottoman Commercial Enterprises as a New Power Source
Damlibag, Fatih
Until the last quarter of 19th century, steam power was the only available source of power for commercial enterprises. But this power required large amounts of investment. This requirement limited the spread of mechanization. But the invention of electrical motors changed the situation. With its practical usage opportunities, electricity took attention of several commercial enterprises in the Ottoman Empire. According to former steam power, electricity provides both usage easiness and lesser cost opportunity to commercial enterprises. Thanks to electrical engines, relatively small businesses were also able to take decision of mechanization. In this article, there were shown examples from six sectors, who wanted to benefit from electricity in their activities. Entrepreneurs made investments in mining, logistics, jewelry, transportation, ginning and milling, for this new technology. With electricity investments, entrepreneurs wanted to reach seven advantages that there were communication possibility, safer working environment, energy efficiency, better lighting, easy utilization, reduced cost and increased productivity. As to the Ottoman government's approach to these entrepreneurs, the officials did not always eagerly meet their demands. Most of the custom officials were reluctant to accept electrical appliances into the country. But in the end, demands of entrepreneurs were mostly accepted by the government. For the control of these demands, the Ottoman Empire wanted both the purpose of each request and the person responsible for that request to be clearly determined.
- MakaleYalnız künye2011Scopus SJRQ1Abrasion Resistance of Cement Mortar with Different Pozzolanic Compositions and Matrices
Yetgin, Sukru; Çavdar, Ahmet
Abrasion of concrete occurs due to scraping, rubbing, skidding, or sliding of objects on its surface. The abrasion resistance of concrete is influenced by a number of factors, such as compressive strength, surfacing finish, aggregate properties, types of hardeners, and curing. The main objective of this study is to determine the effects of the pozzolanic compositions and matrix structure (or voids) on the abrasion resistance of cement mortars. In this study, the mortars produced with cement samples with seven different compositions and varied with an air-entraining agent were subjected to the abrasive effects. Several examples of mortars were evaluated using samples cured for six different periods throughout 1 year. This study is supported by thin section investigations, in addition to being subjected to the basic tests, such as compression, flexure, and abrasion. The Bohme apparatus was used during abrasion tests. To summarize the most important findings from this study, a compact cement matrix is more effective against abrasive effects than mineral additives.
AtıfWoS13OpenAlex18İncele - MakaleYalnız künye2014Scopus SJRQ3ARE OUTPUT FLUCTUATIONS TRANSITORY IN THE MENA REGION?
Dogru, Bulent
This study analyzes the nonstationarity of per capita real GDP for 11 Middle East and North Africa (MENA) Countries over the period 1970 to 2012 using two recently developed methods. SURADF and CADF panel unit root tests allowing for cross sectional dependence are used to determine whether output fluctuations are permanent or transitory. Contrary to the traditional view of business cycle, we find econometric evidence supporting the idea that the output fluctuations in MENA region are mostly permanent. These results also emphasize that the effectiveness of stabilization policies aimed at real output by the government should be reviewed to achieve longlasting results.
AtıfWoS1İncele - MakaleYalnız künye2014Is There a Causality Relationship Between Budget Deficit and Inflation Ratio During High Inflation Period? Case of Turkey Between 1978 and 2002
Dogru, Bulent
In this study it is analyzed whether there is a cause-and-effect relationship between inflation and budget deficit in Turkey with the annual data covering the time period between 19782002 when inflation was high and chronic. Econometric methods used in the study is based on the Johansen co-integration analysis and Granger causality connected error correction model. Empirical results suggest that in the longrun budget deficit and inflation is co-integrated, while budget deficit is Granger cause of inflation in short-run. However, inflation is not Granger cause of budget deficit. In other wordse causality is unilateral. The research also found that, response of inflation to a percentage increase in budget deficit is greater than ten percent in short-run.
AtıfTR Dizin9İncele - MakaleYayıncıda açık erişim2014Scopus SJRQ4A New Empirical Relation between Surface Wave Magnitude and Rupture Length for Turkey Earthquakes
Öztürk, Serkan
Many practical problems encountered in quantitative oriented disciplines entail finding the best approximate solution to an over determined system of linear equations. In this study, it is investigated the usage of different regression methods as a theoretical, practical and correct estimation tool in order to obtain the best empirical relationship between surface wave magnitude and rupture length for Turkey earthquakes. For this purpose, a detailed comparison is made among four different regression norms: (1) Least Squares, (2) Least Sum of Absolute Deviations, (3) Total Least Squares or Orthogonal and, (4) Robust Regressions. In order to assess the quality of the fit in a linear regression and to select the best empirical relationship for data sets, the correlation coefficient as a quite simple and very practicable tool is used. A list of all earthquakes where the surface wave magnitude (Ms) and surface rupture length (L) are available is compiled. In order to estimate the empirical relationships between these parameters for Turkey earthquakes, loglinear fit is used and following equations are derived from different norms: Ms = 1.02* LogL + 5.18, for L-2 Norm regression (R-2=0.71), Ms = 1.15* LogL + 4.98, for L-1 Norm regression (R-2=0.92), Ms = 1.04* LogL + 5.15, for Robust regression (R-2=0.75), Ms = 1.25* LogL + 4.86, for Orthogonal regression (R-2=0.68), Consequently, the empirical equation given by the Least Sum of Absolute Deviations regression as Ms = 1.15* LogL + 4.98 with a strong correlation coefficient (R-2=0.92) can be thought as more suitable and more reliable for Turkey earthquakes. Also, local differences in rupture length for a given magnitude can be interpreted in terms of local variation in geologic and seismic efficiencies. Furthermore, this result suggests that seismic efficiency in a region is dependent on rupture length or magnitude.
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