WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14517/18

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Now showing 1 - 20 of 2147

Citation Count: 3
Intrusive autobiographical memory and its depressive theme on high depressive symptomatology
(Turkish Psychologists Assoc, 2006) Tosun, Ahmet
The research investigates the intrusion and depressive content of the autobiographical memory (AM) that associated with depressive self cognition. 493 students from different universities in 2004-2005 academic years participated in the study. Cognition Check List, Depressive Content Evaluation Form, Impact of Event Scale and Beck Depression Inventory were applied. Results showed that, depressives evaluated their own self at the event as more 'worthless, 'unlovible' and 'inefficient'. They evaluated the others at the event as more 'distrustful, 'rejective' and 'unsupportive' and the event as more 'unchangeable' in future than non-depressives. Concerning AM associated with depressive cognition, depressives reported more intrusion of the AM than non-depressives. It is considered that depressive persons' AM associated with depressive cognition may be a self defining memory. As a result, it is suggested that AM is an important material and context in changing procedure of depressive cognitions in CBT.
Citation Count: 31
The end results of general relativity theory via just energy conservation and quantum mechanics
(Springer/plenum Publishers, 2006) Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
Herein we present a whole new approach that leads to the end results of the general theory of relativity via just the law of conservation of energy (broadened to embody the mass and energy equivalence of the special theory of relativity) and quantum mechanics. We start with the following postulate. Postulate: The rest mass of an object bound to a celestial body amounts less than its rest mass measured in empty space, and this, as much as its binding energy vis-a-vis the gravitational field of concern. The decreased rest mass is further dilated by the Lorentz factor if the object in hand is in motion in the gravitational field of concern. The overall relativistic energy must be constant on a stationary trajectory. This yields the equation of motion driven by the celestial body of concern, via the relationship e(-alpha)/root 1-nu(2)(o)/c(o)(2) = constant, along with the definition alpha = GM/rc(o)(2); here M is the mass of the celestial body creating the gravitational field of concern; G is the universal gravitational. constant, measured in empty space it comes into play in Newton's law of gravitation, which is assumed though to be valid for static masses only; r points to the location picked on the trajectory of the motion, the center of M being the origin of coordinates, as assessed by the distant observer; v(o) is the tangential velocity of the object at r; c(o) is the ceiling of the speed of light in empty space; v(o) and c(o) remain the same for both the local observer and the distant observer, just the same way as that framed by the special theory of relativity. The differentiation of the above relationship leads to GM/r(2)(1 - v(o)(2)/c(o)(2)) = v(o) dv(o)/dr or, via v(o) = dr/dt, GM/r(2) (1- v(o)(2)/c(o)(2)) r//r = d (v) under bar (o)/dt; (r) under bar is the outward looking unit vector along r; the latter differential equation is the classical Newton's Equation of Motion, were v(o), negligible as compared to c(o); this equation is valid for any object, including a light photon. Taking into account the quantum mechanical stretching of lengths due to the rest mass decrease in the gravitational field, the above equation can be transformed into an equation written in terms of the proper lengths, yielding well the end results of the general theory of relativity, though through a completely different set up.
Citation Count: 38
University evaluation-selection: a Turkish case
(Emerald Group Publishing Ltd, 2006) Yamamoto, Gonca
Purpose - The purpose of this study is to examine the university selection criteria of students for better university management with the use of marketing tools. Design/methodology/approach - This study consists of a survey on students attending a foundation university in Turkey. The questionnaire method has been chosen in order to determine the important criteria having an impact on the student views towards university selection. The students had been admitted to a foundation university in the 2005-2006 period when within the same universities various departments were included in the study. Findings - The results indicate student evaluation and selection criteria in this period of time. Practical implications - This paper examines the criteria that affects the selection of students and, in detail the students' point of view towards the university evaluation and selection in Turkey. This will help the university manager's decision making on the marketing tools they use. Originality/value - Selecting a university is a long-term commitment and a very important decision for the high school students and/or graduates. Academic, social, physical factors and facilities are some important criteria for university selection. This study concerns the importance of these criteria in detail.
Citation Count: 3
The relationship between the adolescents' exposure to peer victimization and their age, parental style and self-image
(Turkish Psychologists Assoc, 2006) Oezen, Dilek Sirvanli
The objective of this study is to determine whether the age, the perceived parenting style and the self-image of the individual contribute to his/her exposure peer victimization as well as to the prediction of the different types of peer victimization for both girls and boys. The sample of the study consists of 805 students: 381 girls and 484 boys, all of whom study at the second level of private primary education schools and high school's 6th, 7th, 9th and 10th grades in Istanbul. However, as some of the scales were not filled out properly, hence the sample size decreased to 314 and to 308 for boys and girls respectively. In the study, 'The Peer Victimization Scale' to determine the level of their exposure to peer victimization, 'The Parenting Style Scale' to identify, the perceived parenting styles of the subjects and 'The Offer Self-Image Scale' to reveal the self-images of the participants, were used as instruments for data assessing. Results show that the peer victimization both girls and boys encounter at school is significantly influenced by the age, the perceived parenting styles and the self-image of the individual. Findings are discussed within the framework of the related literature.
Citation Count: 2
ATTITUDES OF STUDENTS TOWARD COUNTRY-OF-ORIGIN AND AUTO BRAND IMAGES
(Univ Belgrade, Technical Faculty At Bor, 2007) Aydin, K.; Say, A. T.; Ustaahmetoglu, E.; Yamamoto, G. T.
Personal and environmental factors determine the image of a company or a brand, which appears as an attitude of the perceiver. The attitudes of people against the products, countries and concepts are directly influential in their purchasing decisions. The objective of this research is to define whether there is a relation between the image of a country and that of the product. This study measures the attitudes of Turkish consumers against five countries and automobile brands from each of these countries. This study aims to identify whether there are any differences between the images of the countries and the respective automobile brands.
Citation Count: 2
Relativistic transformation of force: resolution of apparent paradoxes
(Iop Publishing Ltd, 2007) Kholmetskii, A. L.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper, we present a resolution of apparent paradoxes formulated in [2] and deal with the relativistic transformation of force.
Citation Count: 1
Determination of micro-elements in surface water resources
(destech Publications, inc, 2007) Sahmurova, Aida; Ongen, Atakan; Ozbas, Emine Elmaslar; Balkaya, Nilgun
The basic resources of microelements that are essential for human life. However, in larger or lower amounts, they may become important and critical. They may accumulate in biological systems and become a significant health hazard. Biochemical and physical adaptation of microorganisms is related to geophysical properties and the environmental factors in the surrounding habitat. Therefore many research studies have been conducted dealing microelements and their effect on ecosystems. In this study, heavy metal contamination in the samples taken from surface water resources in the Republic of Azerbaijan were examined. During the study, concentrations of 7 microelements (I, F, Cu, Co, Mn, Zn, Mo) in surface waters were determined. As microelement concentration of the water in the water springs varied from region to region due to the ion structure of the water, microelement concentrations are shown as minimums and maximums and the correlation between above-mentioned microelements was determined. This correlation was taken into account as an additional factor for occurrence of endemic illnesses.
Citation Count: 6
Apparent paradoxes in classical electrodynamics: relativistic transformation of force
(Iop Publishing Ltd, 2007) Kholmetskii, A. L.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper, we analyse a number of paradoxical teaching problems of classical electrodynamics, dealing with the relativistic transformation of force for complex macro systems, consisting of a number of subsystems with nonzero relative velocities such as electric circuits that change their shape in the course of time.
Citation Count: 38
Integrating Hoshin Kanri and the Balanced Scorecard for strategic management: The case of higher education
(Routledge Journals, Taylor & Francis Ltd, 2007) Asan, Seyda Serdar; Tanyas, Mehmet
This paper suggests a methodology that focuses on the vision and the deployment of strategies throughout the organization by merging Balanced Scorecard and Hoshin Kanri. The authors believe that combining a performance-oriented approach like the Balanced Scorecard with a process-oriented approach like Hoshin Kanri creates synergy. The proposed methodology begins with the selection of strategic objectives according to the Balanced Scorecard perspectives, which is followed by the generation of the strategy map. The developed strategies are then deployed down to implementation plans which are reviewed by Hoshin Kanri, and the outcomes are evaluated by utilizing both. tools. The implementation of the proposed methodology is illustrated based on an Engineering Management Graduate Program (EngMan). Finally, using the proposed methodology, implementation plans for the management of EngMan are realized, facilitating EngMan to attain its vision in the long term.
Citation Count: 2
Pb and Cd Contamination in Agricultural Crops of Corlu: The Effects of Transportation and Industry
(destech Publications, inc, 2008) Sahmurova, Aida; Caliskan, Semra; Babaoglu, Mehmet
Tissue cadmium (Cd) and lead (Pb) concentrations of agricultural crops grown in and around Corlu district in the vicinity of an industrial zone and main highway leading from Istanbul to Europe were investigated. Plant samples were taken from 11 locations and were analysed by ICP (inductively Coupled Plasma Spectrometry). The concentrations of lead were between 0.221-0.383 mg kg(-1) in wheat, 0.526-0.754 mg kg(-1) in sunflower, 5.865-0.223 mg kg(-1) in corn, 1.469-3.517 mg kg(-1) in lettuce, 2.013-2.323 mg kg(-1) in parsley, 0.587 mg kg(-1) in peppers, 2.672 mg kg(-1) in potatoes and 1.367-4.586 mg kg-1 in onions. The samples contained cadmium concentrations between 0.026-0.048 ppm in wheat, 0.072-0.093 ppm in sunflower, 0.452-0.025 ppm in corn, 0.501-0.621 ppm in lettuce, 0.209-0.396 ppm in parsley, 0.014 ppm in pepper, 0.462 ppm in potato and 0.213-0.513 in onion. Accordingly, heavy metal pollution was detected in the plants growing in and in the surroundings of Corlu according to the Turkish Food Codex requiring measures against the pollutant sources.
Citation Count: 12
Evaluating radio frequency identification investments using fuzzy cognitive maps
(Old City Publishing inc, 2008) Uestuendag, Alp; Tanyas, Mehmet
RFID (Radio Frequency Identification) is an Auto-ID technology which uses radio waves to automatically identify the individual items. Using RFID systems for identifying and tracking objects, it is possible to improve the performance of a supply chain process in terms of operational efficiency, accuracy and security. RFID systems can be implemented in different levels like item, case or pallet. These various applications create different impacts in supply chain processes. RFID investments are very important strategic decisions so they require a comprehensive evaluation process. The tangible and intangible benefits should be integrated to evaluate them. The fuzzy cognitive mapping (FCM) is a suitable tool to model causal relations in a non-hierarchical manner for an RFID investment evaluation. In this paper, the FCM method is used to measure the impact of RFID investment in a supply chain process.
Citation Count: 2
Fourier-Galerkin domain truncation method for Stokes' first problem with Oldroyd four-constant liquid
(Pergamon-elsevier Science Ltd, 2008) Akyildiz, F. Talay; Vajravelu, K.; Ozekes, H.
Using the Fourier-Galerkin method with domain truncation strategy, Stokes' first problem for Oldroyd four-constant liquid on a semi-infinite interval is studied. It is shown that the Fourier-Galerkin approximations are convergent on the bounded interval. Moreover, an efficient and accurate algorithm based on the Fourier-Galerkin approximations is developed and implemented in solving the differential equations related to the present problem. Also, the effects of non-Newtonian parameters on the flow characteristics are obtained and analyzed. The method developed here is so general that it can be used to study the mathematical models that involve the flow of viscous fluids with shear rate-dependent properties: For example, models dealing with polymer processing, tribology & lubrication, and food processing. (C) 2007 Elsevier Ltd. All rights reserved.
Citation Count: 5
Energy flow in a bound electromagnetic field: resolution of apparent paradoxes
(Iop Publishing Ltd, 2008) Kholmetskii, A. L.; Yarman, T.; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
In this paper, we present a resolution of apparent paradoxes formulated in (Kholmetskii A L 2006 Apparent paradoxes in classical electrodynamics: the energy-momentum conservation law for a bound electromagnetic field Eur. J. Phys. 27 825-38; Kholmetskii A L and Yarman T 2008 Apparent paradoxes in classical electrodynamics: a fluid medium in an electromagnetic field Eur. J. Phys. 29 1127) and dealing with the energy flux in a bound electromagnetic field.
Citation Count: 9
UNIFICATION OF SPACE-TIME-MATTER-ENERGY
(Ministry Communications & High Technologies Republic Azerbaijan, 2008) Sobczyk, Garret; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
A complete description of space-time, matter and energy is given in Einstein's special theory of relativity. We derive explicit equations of motion for two falling bodies, based upon the principle that each body must subtract; the mass-equivalent for any change in its kinetic energy that is incurred during the fall. We find that there are no singularities and consequently no blackholes.
Citation Count: 1
A research on low and high achievers' stereotypes content toward their in-group and out-group on the basis of competence and warmth dimensions
(Turkish Psychologists Assoc, 2008) Aktan, Timucin; Guevenc, Guelden
The aim of the present study was to investigate the stereotypes directed, towards; academically achieving or under achieving students, in terms of competence and warmth as proposed by Fiske et al. (1999; 2002). The relationships between social structural variables, namely status, competitiveness and stereotype content were also explored. The study was conducted on 321 male and female students (seventh and eighth grade) recruited from Saraycik - Sehitler and Taylan Arasli Primary Schools in Ankara, Sincan. The students of the first school were segregated into different classes based on achievement whereas classes in the second school were mixed. The effects of schools and achievement groups showed that the participants from the Sehitler Primary School did not accept the legitimacy of segregation. Moreover, even though successful students were evaluated as more competent compared to unsuccessful students, there was no significant difference between the two groups in terms of the warmth dimension. On the other hand, subjects from Taylan Arasli Primary School evaluated the distinction as legitimate. While successful students were perceived as more competent, unsuccessful students were evaluated as warmer than the successful group. The group difference in regard to achievement had impact on total scores of participants' evaluations. Even though unsuccessful students who were against segregation reported no difference between successful and unsuccessful students in relation to competence and warmth, successful students accepted the superiority of their in-group in comparison to the outgroup. The results of the present study supported the relationship between status and competence, as argued by Fiske et al. (2002). However, the relationship between competitiveness and warmth was not significant. In the respective sections, the findings were discussed with respect to relevant literature and suggestions were made for future research.
Citation Count: 2
Biosorption of Cd²⁺ and Zn²⁺ ions in leachate with Enteromorpha compressa macroalga
(Natl inst Science Communication, 2008) Sahmurova, Aida; Kose, Sati; Ozbas, Emine Elmaslar
This study presents biosorption of Cd2+ and Zn2+ ions from landfill leachate by using an alga of Enteromorrpha compressa type. Retention time of 60 min and pH 4 have been found optimum for biosorption of both metals.
Citation Count: 1
The financial feasibility of the phytoremediation technology: Assessment of remediation by Sideritis galatica, poplar and willow
(destech Publications, inc, 2008) Sahmurova, Aida; Teker, Dilek
Phytoremediation is a process which uses several plants to remove the pollutants from water and soil to reduce, completely extract, control or immobilize them. The plants used for this reason are referred to as the hyperaccumulators. Metal accumulation can occur in several different families from small annual grass to perennial bushes and trees. For remediation or cleaning of the soils polluted with heavy metals, the ideal plant species are the ones which can produce high amounts of biomass and can accumulate and tolerate the pollutants. In this research, Cd and Zn metals which occurred because of industrial wastes are observed in the roots of Phragmites Australis, Cyperace carex, Sideritis galatica and Compositae cardueae plants in Kucukcekmece region. Among these, Sideritis galatica was found to be the most beneficial plant for remediation. Furthermore, it was observed that the Kucukcekmece region is also suitable for growth of willow and poplar trees. This study includes a financial feasibility analysis that determines the monetary benefit of phytoremediation as well as the environmental advantages. The financial outputs are compared by the net present value model and internal rate of return approaches.
Citation Count: 2
Note on Faraday's law and Maxwell's equations
(Iop Publishing Ltd, 2008) Kholmetskii, Alexander L.; Missevitch, Oleg V.; Yarman, Tolga; Enerji Sistemleri Mühendisliği / Energy Systems Engineering
We generalize the approach developed by us for the evaluation of the total time derivative of circular integral (Kholmetskii A L et al 2008 Eur. J. Phys. 29 L1-4) and derive an explicit expression for the total time derivative of the area integral for a differentiable vector field. On the basis of this expression, we prove for the first time that Faraday's law can be directly obtained from the Maxwell equations del x E = -delta B/delta t, del center dot B = 0 and the Lorentz force law.
Citation Count: 53
Exploring the role of metacognition in obsessive-compulsive and anxiety symptoms
(Pergamon-elsevier Science Ltd, 2008) Irak, Metehan; Tosun, Ahmet
This study tests three hypotheses, predicting first that metacognition is highly correlated with anxiety and obsessive-compulsive (O-C) symptoms, second that it mediates the relationship between O-C symptoms and anxiety, and third that the meta-cognitive predictors of anxiety are different from the meta-cognitive predictors of O-C symptoms. The sample of the present study was 850 students selected from various universities in Turkey. Significant correlations between metacognition, O-C symptoms and anxiety were observed. Also, mediation analysis confirmed that metacognition fully mediated the relationship between O-C symptoms and anxiety. Consistent with our hypothesis, trait anxiety and O-C symptoms had different meta-cognitive predictors. Although, we expected that meta-cognitive beliefs would vary based on the sub-type of O-C symptoms, meta-cognitive beliefs did not differ according to the O-C symptom subtypes. We discussed results with reference to the literature of meta-cognition, anxiety and O-C symptoms. (c) 2008 Elsevier Ltd. All fights reserved.
Citation Count: 0
Microelements in food materials consumed by children in boarding schools and day nurseries
(destech Publications, inc, 2008) Sahmurova, Aida; Babayeva, Sabina
The basic resources of microelements that are essential for human life are food materials. However, in larger or lower amounts, they may become more important and critical. They may be accumulated in biological systems and pose a significant hazard to health. Biochemical and physical adaptation of microorganisms are related to geophysical properties and the environmental factors in the surrounding habitat. Therefore, many research activities have focused on microelements and their effect on ecosystem. In the Republic of Azerbaijan specialized research activities have been carried out since 1950s. This study has been carried out in the Kuba-Khachmas and Sheki-Zaqatala regions where endemic goiter is a critical health disease. In order to compare the effect of microelements, their level in a blank region, Absheron peninsula, was also investigated. 160 samples of consumed food materials in the regions were collected from boarding and nursery schools. Iodine, fluorine, copper, cobalt, manganese, zinc and molybdenum levels were determined for each sample Although for almost each microelements a large range was observed between minimum and maximum levels, the results showed that the soil character in the studied areas had lower microelement amount levels than required for vital activities.

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