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Koleksiyondaki öğeler
- MakaleYalnız künye2018The Impact of Special Consumption Tax Increases on Personal Automobile Demand of Households: Panel Co-Integration Analysis
Önder, Kubra; Sahin, Muhammet
The automobile industry is one of the leading industries for economic growth and development of countries in terms of value added and export value. Consumer demand for automobiles exhibits a continuous fluctuation depending on the SCT (Special Consumption Tax) policy. The aim of this study is to analyze the impact of the change in SCT rates on automobile demand using panel co-integration method for Fiat, Ford, Toyota, Renault, Honda and Hyundai brands which have factories in Turkey. In the study, monthly time series data of January 2014 and February 2017 period has been used and increase in SCT rate, auto loan interest rates and petrol prices have a negative impact on personal automobile demand.
AtıfWoS1TR Dizin7
İncele - MakaleAçık Erişim2019Determinants of Out of Pocket Health Expenditure in Turkey: Unconditional Quantile Regression
Ipek, Egemen
Out-of-pocket health expenditures include direct and indirect payments made by individuals for health goods and services. In this study, the determinants of out-of-pocket health expenditures, which are one of the most important sources of health expenditures financing, are investigated with the data of 2003-2015 Household Budget Survey using the Unconditional Quantitative Regression method proposed by Firpo et al. (2009). This method allows to produce generalizable and interpretable results in terms of political and general society compared with conditional quantitative regression methods. The most important result obtained from the study is that conditional quantitative regression method gives more consistent results than unconditional quantitative and least squares regression methods in the analyzes based on the right-skewed distribution observations such as out-of-pocket health expenditures.
AtıfWoS4OpenAlex8TR Dizin5İncele - MakaleAçık Erişim2021Scopus SJRQ3Upper extremity arterial thromboembolism in a patient with severe COVID-19 pneumonia: A case report
Bilge, Aysegul; Karasoy, Ismail; Neziroglu, Elif; Güner, Yesim
Although novel coronavirus-2019 (COVID-19) primarily affects the respiratory system, it can affect multiple organ systems, leading to serious complications, such as acute respiratory distress syndrome (ARDS) and multiple organ failure. Nearly 20 to 55% of patients with COVID-19 experience coagulation disorders that cause high mortality in line with the severity of the clinical picture. Thromboembolism can be observed in both venous and arterial systems. The vast majority of thromboembolic events are associated with the venous system and are often observed as pulmonary embolism. Arterial thromboembolisms often involve the arteries in the lower extremities, followed by those in the upper extremities. Herein, we report a rare case of COVID-19 pneumonia whose left arm was amputated at the forearm level after arterial thromboembolism in the left upper extremity. This case report is valuable, as it is the first reported case of upper extremity arterial thromboembolism in Turkey, as well as the only case in the literature in which the patient underwent four surgical interventions and is still alive.
AtıfWoS2OpenAlex3
İncele - BildiriYalnız künye20133D Palmprint Pose Estimation Using Stereo Camera
Bingöl, Ozkan; Ekinci, Murat
Although studies on the palm recognition systems achieving are high performance ratios, hygiene problems in contact systems and change of hand pose in contactless systems were encountered. 3D recognition systems is proposed for solve these problems. But, these systems did not find the opportunity to become widespread because of expensive technologies and low scanning speed. In this study was proposed a method for detemined pose variations of palmprint using stereo cameras and transferring patterns that to be used for recognition to 2D space. Thus, both a non-contact system will be obtained and can be used properties of strong 2D recognition systems.
AtıfWoS2İncele - Derleme MakaleYalnız künye2015EXPERIMENTAL INVESTIGATION OF THE STRESS RELAXATION BEHAVIOURS OF EPDM SYNTHETIC RUBBERS
Mazlum, Ugur; Vahapoglu, Vahap; Karadeniz, Sami
Rubber type materials are preferred because they are suitable for use in many engineering applications besides their elasticity. EPDM rubber show outstanding heat, ozone and weather resistance and has excellent electrical properties. Therefore this rubber as an elastomer is an engineering material that has wide range of applications in industry such as door and window seals, radiator, garden and heating hoses, tubing, washers, belts, electrical insulation, roofing membrane and rubber mechanical goods. In this works, the stress relaxation behaviour of EPDM rubber at the room temperature were experimentally investigated. Applied to the hardness EPDM samples were subjected to different loading programs. In addition, for the loading programs that were implemented, it is shown that for the EPDM rubbers tested the stress relaxation curves obtained at different stretch ratios may be represented by a single representative curve for the specimens having the same hardnesses.
AtıfWoS1İncele - BildiriYalnız künye2016An Effective Database Watermarking Method Based On Histogram of Pairs
Sahin, Yasin; Ulutas, Guzin; Imamoglu, Mustafa Bilgehan
Protecting database integrity has become a matter of increasing importance nowadays as accessing information is getting easier. Therefore, database watermarking approach to protect the integrity become an active research area. Most of the existing relational database watermarking techniques embed a generated watermark in the database. Zero watermarking is employed in the proposed technique by storing the watermark generated from the database in another medium independent from the database. In order to make the method robust to column replacement attacks, cell values are split into overlapping pairs and column number is added to pairs. The histogram of pairs is used as the watermark because any change in either a cell value or column replacement would affect the histogram. Experimental results indicate robustness to column replacement attack as well as improved processing time compared to other works reported in the literature.
AtıfWoS3İncele - MakaleAçık Erişim2022RELATIONSHIPS BETWEEN INVESTMENT INCENTIVES, PUBLIC INVESTMENT EXPENDITURES AND EXPORT: PANEL CAUSALITY ANALYSIS ON PROVINCES IN TURKEY
Recepoglu, Mursit; Doganay, Muharrem Akin; Deger, Mustafa Kemal
The state plays an essential role in the survival of companies under today's global competition conditions. Governments can, directly and indirectly, affect the competitiveness of firms through incentives and public investment expenditures. This study examines the relations between investment incentives, public investment expenditures and exports at the provincial level in Turkey. According to the panel causality analysis findings covering the period 2002-2017, there is a two-way causal relationship between investment incentives and exports. On the other hand, there is a one-way causality from exports to public investment expenditures. These results indicate the importance of the effects of incentives on exports in the short term. However, the absence of the expected export effects of public investments can be attributed to inefficiency in public investments.
AtıfOpenAlex3TR Dizin4İncele - MakaleYalnız künye2026Scopus SJRQ1Frustrated Entitlements and Micro-Aggressors in Julian Barnes's Novels, The Sense of an Ending and The Only Story
Günes, Mustafa
This article reads the male first-person narrators of Julian Barnes's The Sense of an Ending and The Only Story as gender microaggressors. Focusing on microaggression developed in social and feminist psychology, and on contemporary feminist philosophy's redescription of misogyny, the article argues that the rueful, self-critical retrospection these novels are usually praised for also serves as a vehicle for the quiet reproduction of patriarchal ideology. At the root of these microaggressions lies what the article terms 'frustrated entitlement', the felt grievance of someone who believes a tribute has gone unpaid. Feminist narratology supplies the analytic tools required to make this argument precise. Close reading distinguishes microaggressions performed by the younger protagonist within the storyworld from those enacted by the older narrator in the telling, and shows that both are absorbed into a rhetorical structure of 'bonding unreliability': the narrators name the gendered patterns of their own thought, and that very naming becomes the licence by which the patterns are kept in place. Set against the louder retrosexism of the postwar British male confessional novel in its more satirical and self-aggrandising mode, Barnes's decorous, retrospectively contrite narrators emerge as the most refined instance of an underexamined formal investment in contemporary British letters: the patient maintenance of patriarchal continuity through the voice of the man who is sorry.
- MakaleAçık Erişim2015DETERMINATION OF PARAMETERS FOR DOUBLE-SIDE LINEAR PERMANENT MAGNETS SYNCHRONOUS MOTOR
Otkun, Ozcan; Akpinar, Adem Sefa
In this study, the test results were compared with the parameters specified and determination of parameters of the design Double-Side Linear Permanent Magnet Synchronous Motor. Firstly given the design details of the motor and then transferred to the methods used to obtain the parameters of the motor. Three different methods were used in finding the parameters. The first of these methods, the classical method, the experimental method. The second is a digital LCR meter sensitive results obtained. The third one the motor drive LG-SV022IG5A-4 results obtained from the product code. With these results, the motor was tested with the help of computer software is prepared. From the results of the test current, frequency, and the results were evaluated given pushing force and speed graphics.
AtıfWoS2OpenAlex1İncele - BildiriYalnız künye2018R-peaks Detection with Convolutional Neural Network in Electrocardiogram Signal
Dogan, Ramazan Ozgur; Kayikçioglu, Temel
The performance of electrocardiogram applications is closely related to the succesful detection of R-peaks. Therefore, successful detection of R-peaks is of high importance. Electrocardiogram signals vary from person to person, so detection of R-peaks is getting difficult. In this study, Evolutionary Neural Network which is a deep learning model and imitates human vision, is used to detect R-peaks. The MIT-BIH Arrhythmia Database with 48 different records was used as the database and experimental results with very high accuracy were obtained.
- MakaleAçık Erişim2019Determination of the Effects of Alucra Forest Planning Unit's Population Dynamics on Land Use Changes
Çakir, Gunay; Kaya, Latif Gurkan; Yücedag, Cengiz; Bayram, Sitki
Aim of study: This study is done to monitor temporal land use/land cover changes in a typical mountain watershed covering an area of 135441.0 ha in North Eastern of Turkey based on rural demographic dynamics and forest management plans belonging to the years 1987 and 2013 coupled by GIS analyses. It also investigates changes in the shape of land use class (LUC) over the period. Material and Methods: The changes occurring time wise and positional on the base of the local LUC was examined by benefiting from the forest management plans from 1987 to 2013. Moreover, the change of LUC around these areas has been examined with the 1000 m zones thrown around the settlement areas and correlated with the fast decrease of the population recent years. Demographic dynamics (increase or decrease) affect the usage of forest lands, as well. Main results: While there was an increase in the productive forest lands (pure coniferous and deciduous, and mixed forest) between 1987 and 2013. In the same periods there was a decrease in agricultural and sandy areas. The increase of patches in the productive forest lands mostly resulted from afforestation works conducted in the unproductive forest lands, and forestry maintenance activities. Another reason for this increase of forest patches is why people have immigrated to urban areas in the last years. Research Highlights: It can be said that one of the most important causes in the rise of the forest resources in the Alucra Forest Planning Units (FPU) is the time wise changes of social structure. Furthermore, the forestry activities in the study between 1987 and 2013 are also the other significant factor in this increase of forest resources.
AtıfWoS3OpenAlex5TR Dizin4İncele - MakaleYalnız künye2011Scopus SJRQ3The Creative Destruction of Economic Development: The Schumpeterian Entrepreneuer
Basilgan, Muslum
The subject of the entrepreneur in economic theory has mostly been examined in terms of development. Schumpeter, who argued that the neoclassical economic theory could not explain the powers of the economic change due to its static base, took a different position by arguing the necessity of a dynamic theory. Schumpeter identified the entrepreneur as essential element of the dynamic theory of economic change. To Schumpeter, the major role of the entrepreneur is to realize new combinations or innovations that ensure economic change. The primary objective of this study is to explore the individual (psychological) and leadership (sociological) characteristics of the Schumpeterian entrepreneur, who leads to creative destruction via the new combinations in the capitalist system: to put forth his difference from other economic actors and to demonstrate his role in the future (the collapse) of capitalism.
AtıfTR Dizin6İncele - MakaleAçık Erişim2011Scopus SJRQ3Breast Conserving Surgery and Modified Radical Mastectomy in Turkish Women with Breast Cancer: A Prospective Analysis of Quality of Life
Kement, Metin; Gezen, Cem; Asik, Ayla; Karaöz, Alev; Ustaalioglu, Basak Oven; Bilici, Ahmet; Öncel, Mustafa
Objective: The aim of this study is to compare the postoperative quality of life of the patients who underwent breast conserving surgery followed by radiotherapy (BCT) and the patients who underwent modified radical mastectomy (MRM) in our clinic. Material and Methods: The patients who were operated on with diagnosis of breast cancer in our clinic between January 2006 and January 2008 were included in the study. Those who received neoadjuvant therapy and who required radiotherapy after modified radical mastectomy and those in ASA classes 3 and 4 were excluded. The patients who were treated with modified radical mastectomy were included in the first group (Group MRM) and the patients who were treated with breast conserving therapy and radiotherapy thereafter were included in the second group (Group BCT). Quality of life of the patients were assessed using Medical Outcome Syudy-Short Form 36 (MOS SF-36) form six months after their treatment (surgery, radiotherapy, chemotherapy) was completed. Results: There were no significant differences between two groups in terms of age, evaluated socioeconomic parameters (education, income, marital status) and clinical parameters (stage, complications, adjuvant chemotherapy). Quality of life of the patients who underwent BCT (n=27) was worse than that of general Turkish population in six of eight (except vitality and social function) SF-36 scale and worse than mean values of normal individuals in NSABP BCPT trial in seven of eight (except vitality) scales. Besides, while physical component score was worse than that of general population (45.3 vs 52.6), mental component score (MCS) was relatively similar to general population (53.4 vs 51.7). When quality of life of the patients who underwent MRM (n=23) and BCT were compared, mean values of BCT group were found to be better in all scales and the difference was found to be statistically significant in six out of eight (except vitality and social function) scales (p<0.05). Conclusion: It can be stated that quality of life of the patient who underwent BCT due to breast cancer is impaired in terms of physical status, however did not change in terms of mental status. It can also be stated that quality of life of the patients who underwent breast conserving therapy were better than the ones who underwent modified radical mastectomy in terms of both physical and mental status.
AtıfWoS2OpenAlex4İncele - MakaleYalnız künye2014Scopus SJRQ2EFFECT OF HEAT TREATMENT ON STRUCTURE OF ELECTROLESS Ni-B COATED PURE TITANIUM
Bülbül, Ferhat; Çelik, Ilhan
Pure titanium has a very large potential for use industrially due to its low weight, however, its usage continues to be limited because it possesses some disadvantages such as low hardness and wear resistance, weak corrosion resistance in high temperatures and high cost. In order to strengthen these weaknesses of pure titanium, electroless Ni-B deposition process, may be an alternative solution. In this study, the Ni-B coatings were deposited on pure titanium and annealed at the temperatures of 450 degrees C, 650 degrees C and 850 degrees C. The non-heat treated and heat treated coatings were structurally characterized via SEM (scanning electron microscope) and XRD (x ray diffraction). These coatings transformed from amorphous structure to a pronounced crystalline structure depending on heat treatment.
AtıfWoS9TR Dizin2İncele - BildiriYalnız künye2016Solar Energy Potential of Eastern Black Sea Region of Turkey: A Case Study for Trabzon Province
Çakmak, Recep; Altas, Ismail Hakki
In electricity generation, there is a tendency towards renewable energy sources in order to supply the increased electricity demand and in an effort to generate electricity with less environmental damages. The Sun is a significant renewable energy source and photovoltaic (PV) panels are one of the most commonly used systems in electricity generation by utilizing solar energy. Germany is the leader country in the world in terms of installed PV watt per capita. In this paper, potential of electricity generation by utilizing solar energy in Trabzon Province has been studied and compared with that of Germany. Solar energy data of Trabzon Province, which is provided from four different sources, have been presented and amount of electricity power that can be generated by PV systems in Trabzon Province have been given. By presenting the PV power plant examples from Germany, the quantity of electricity that can be generated in case of the same systems installed in Trabzon Province have been given. By analyzing the obtained data, it is aimed to create awareness about the potential of electricity generation from solar energy in Province of Trabzon in Turkey and to subvert prejudices about the solar energy potential in Eastern Black Sea Region of Turkey.
AtıfWoS3İncele - MakaleYalnız künye2017The Relationship Between Price Level and Fiscal Policy in Turkey: An Econometrical Analysis of the FTPL Approach
Bölükbas, Mehmet; Peker, Osman
The aim of this study is to investigate the Fiscal Theory of Price Level (FTPL) approach for Turkey and to determine whether monetary and fiscal policy shows a dominant regime characteristic. In this context, an empirical analysis was performed by using 2006: Q1-2015: Q4 period data with the help of Johansen Cointegration Method. According to the results of empirical analysis, it has been determined that fiscal policy is an effective policy in determining the price level in Turkey in the mentioned period because a unit change in the primary budget balance led to an increase of 4,33 units in the general price level. This finding suggests that the FTPL approach is valid for Turkey in the period 2006-2015 and fiscal policy shows the dominant regime characteristic in Turkey in the mentioned period.
AtıfWoS3İncele - BildiriYalnız künye2018Detecting Cardiac Arrhythmia by Using Time Differences of Double Wavelength PPG Peaks
Yildirim, Omer; Kayikçioglu, Temel
Nowadays, photopletismogram (PPG) signals are used in respiration and blood pressure measurement, monitoring of the sleep pattern and also detecting of mental disorders, mainly blood oxygen saturation and heartrate measurement. The reason of the use of PPG signals instead of signals such as electroencephalogram (EEG) or electrocardiogram (ECG) is easy to obtain and real-time monitoring of these data, as well as being easily used by people in daily life and easily integrated into wearable technologies. In this study, detecting of cardiac arrhythmia was made successfully by using double wavelength PPG signals instead of ECG signals
- MakaleAçık Erişim2019Some Physical and Mechanical Properties of Impregnated Chestnut Wood with Natural and Chemical Agent Exposed to Outdoor Conditions
Yasar, Mehmet; Altunoiv, Mustafa
Wood preservatives have been widely used to extend the service life of wood. The most objectionable environment for wood is outdoor conditions. In this study, test specimens prepared from chestnut wood (Castanea sativa Mill) were impregnated with natural and chemical impregnation agent. It was aimed to determine the effect of outdoor conditions on physical and mechanical properties of wood material by keeping them under these conditions for one year. As natural impregnation material pine tannin and acorn tannins, as chemical impregnation material imersol aqua and timbercare aqua were used. The retention amount, air-dried density, bending strength, modulus of elasticity, compression strength parallel to fibers, adhesion strength parallel to fibers, screw withdrawal strength were determined. As a result, it can be said that the physical and mechanical test values can compare wood impregnated with natural impregnation materials to wood impregnated with chemical impregnation materials after one year exposed to outdoor conditions.
AtıfWoS5OpenAlex4TR Dizin4İncele - MakaleAçık Erişim2022EFFECTS OF CORRUPTION ON ECONOMIC GROWTH UNDER MACROECONOMIC INSTABILITIES
Batu Agirkaya, Melahat; Akyol, Hikmet
This study examined impact of macroeconomic instability and corruption on economic performance in developing countries. For this purpose, longterm relationship between 1995-2019 was examined using Kao (1999) and Pedroni (1999, 2004) cointegration tests. Results, macroeconomic instability and corruption have affected economic performance in long run. Flexibility of long-term relationship between variables was analyzed using PDOLS, FMOLS and DOLSMG estimators. The results showed that macroeconomic instabilities negatively and significantly affect economic growth and FDI, which represent economic performance. As macroeconomic instability increases, economic revival will be negatively affected by this, while foreign capital investment in country will decrease. Consequently, implementation of policies that will reduce macroeconomic instability and uncertainties will increase economic recovery and encourage foreign capital investments in host countries. Impact of corruption on economic growth and FDI was found to be positive. Decreasing corruption in research countries favors economic growth and facilitates foreign investment increases.
AtıfOpenAlex1İncele - MakaleYalnız künye2013The Role of Institutional Structure Explaining the Growth Differences across Countries: Panel Data Analysis
Artan, Seyfettin; Hayaloglu, Pinar
The question of why some countries grow faster than other countries is one of the main issues discussed by economists for many years. In recent years, institutional structure has been gaining increasing relevance in economic growth literature to explain growth differences across countries. In this study, the effects of institutional structure on economic growth analyzed for 110 countries using the panel data during the period 2000-2009 by using different indicators to represent the institutional structure. The results revealed that the effect of institutional structure on the economic growth differs by the development level. Moreover, institutional structure is one of the important determinants of economic growth especially in the developed countries.
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