Eğitim, zamanda yolculuktur gibidir.Gelecekteki buluşlara,icatlara ve fikirlere iyi bir eğitimle erken,kötü bir eğitimle geç kavuşabiliriz. Address: Turkey
Sizce Türkiye'nin eğitim alanındaki en önemli sorunu nedir? Bu sorunun çözüme kavuşturulmasında a... more Sizce Türkiye'nin eğitim alanındaki en önemli sorunu nedir? Bu sorunun çözüme kavuşturulmasında alt sistemler kuramı çerçevesinde üst sistem,aracı üst sistem ve temel sistemlerin üzerine düşen görevler nelerdir? Bu sorunun çözümüne dönük olarak bu sistemler arasında ortaya çıkabilecek koordinasyon sorunları nelerdir? Bu koordinasyon sorunları nasıl aşılabilir? Bu soruyu yanıtlayabilmeniz için;
African Journal of Business Management, Jan 18, 2011
The purpose of this study was to investigate anger mangement with respect to attachment styles. T... more The purpose of this study was to investigate anger mangement with respect to attachment styles. The participants were 445 (229 females and 216 males, between 16-18 years old) adolescents. Pearson product-moment correlation coefficients and multiple regression analysis were used. As a result of the study, it was found that there was a positive relationship between secure attachment style and trait anger, anger in and anger control. There was a statistically significant positive relationship between preoccuped attachment styles and trait anger, anger in and anger-out. There was also a statistically significant positive relationship between fearful attachment style and trait anger, anger in. Besides, it was found that attachment styles significantly explain the trait anger and the anger expression
YOU CAN RUN, BUT YOU CANNOT HIDE': TRACKING OBJECTS THAT LEAVE THE FIELD-OF-VIEW
In the past, there has been significant research on tracking objects based on features that chara... more In the past, there has been significant research on tracking objects based on features that characterize objects. However, once the features to detect the object are not available from the position of a tracker, it is not clear how to track the object. Our goal in this paper is to track an object even though the object leaves the field-of-view.
The ultimate goal of any testing strategy is to measure profitability. This paper measures the pr... more The ultimate goal of any testing strategy is to measure profitability. This paper measures the profitability of simple technical trading rules based on nonparametric models which maximize the total returns of an investment strategy. The profitability of an investment strategy is evaluated against a simple buy-and-hold strategy on the security and its distance from the ideal net profit. The predictive performance is evaluated by the market timing tests of Henriksson-Merton and Pesaran-Timmermann to measure whether forecasts have economic value in practice. The results of an illustrative example indicate that nonparametric models with technical strategies provide significant profits when tested against buy-and-hold strategies. In addition, the sign predictions of these models are statistically significant.
In this study, 25 female and 15 male mongrel dogs, aged ranging from i to 7 years, were used. The... more In this study, 25 female and 15 male mongrel dogs, aged ranging from i to 7 years, were used. They were subjected to clinical, ultrasonographical and biochemical examinations. Ultrasonographically in 18 of the 40 do gs (45%), different kidney abnormalities were observed, whereas the other 22 dogs were found normaL. Likewise, serum urea and creatinine levels were measured to be higher in the dogs with kidney abnormalities. Serum creatinine elearance estimated using the Cockroft-Gault equation was exceeding the physiological range. In conelusion, for mongrel dogs ultrasonographic examination, measurements of serum urea nitrogen (BUN) and creatinine, and calculation of serum creatinine elearance using the Cockroft-Gault equation might be useful to diagnose early kidney abnormalities.
The Schrodinger equation with one and two dimensional potentials are solved in the frame work of the sl2(R) Lie algebra. Eigenfunctions of the Schrodinger equation for various asymmetric double- well potentials have been determined and the eigenstates are expressed in terms of the orthogonal poly...
In feedforward networks, signals flow in only one direction without feedback. Applications in for... more In feedforward networks, signals flow in only one direction without feedback. Applications in forecasting, signal processing and control require explicit treatment of dynamics. Feedforward networks can accommodate dynamics by including past input and target values in an augmented set of inputs. A much richer dynamic representation results from also allowing for internal network feedbacks. These types of network models are called recurrent network models and are used by Jordan (1986) for controlling and learning smooth robot movements, and by Elman (1990) for learning and representing temporal structure in linguistics. In Jordan's network, past values of network output feed back into hidden units; in Elman's network, past values of hidden units feed back into themselves.
Background. Ineffective erythropoiesis and intramedullary hemolysis are the two important results... more Background. Ineffective erythropoiesis and intramedullary hemolysis are the two important results of pernicious anemia. Hemolysis is one of the risk factors in the formation of gallbladder stones.
We investigated the effects of acamprosate on alcohol-induced oxidative toxicity, microsomal memb... more We investigated the effects of acamprosate on alcohol-induced oxidative toxicity, microsomal membrane Ca2+-ATPase (MMCA) activity and N-methyl-d-aspartate receptor (NMDAR) subunits in rat brain. Forty male rats were equally divided into four groups. The first group was used as control, and the second group received ethanol. Acamprosate and acamprosate plus ethanol each day were administered to rats constituting the third and fourth groups for 21 days, respectively. Brain cortical and hippocampal samples were taken from the four groups after 21 days. Brain cortical lipid peroxidation (LP) levels and MMCA activity were higher in the alcohol group than in control, although glutathione peroxidase (GSH-Px), vitamin C, vitamin E and β-carotene values were lower in the alcohol group than in control. LP levels were further increased in the acamprosate and alcohol + acamprosate groups compared with the alcohol group. GSH-Px, vitamin A, vitamin C, vitamin E and β-carotene in the acamprosate and alcohol + acamprosate groups were further decreased compared with the alcohol group. Hippocampal NMDAR 2A and 2B subunit concentrations were lower in the alcohol group than in control, although they were increased by acamprosate and alcohol + acamprosate. Brain cortical MMCA activity was higher in the acamprosate group than in the alcohol-treated rats, although its activity was lower in the alcohol + acamprosate group than in the acamprosate group. Brain cortical reduced glutathione levels were not found to be statistically different in any of the groups. Oxidative stress has been proposed to explain the biological side effects of experimental alcohol intake. Acamprosate and alcohol-induced oxidative stress decreased brain antioxidant vitamins in the alcoholic rats.
We examine the dynamics of extreme values of overnight borrowing rates in an inter-bank money mar... more We examine the dynamics of extreme values of overnight borrowing rates in an inter-bank money market before a financial crisis during which overnight borrowing rates rocketed up to (simple annual) 4000 percent. It is shown that the generalized Pareto distribution fits well to the extreme values of the interest rate distribution. We also provide predictions of extreme overnight borrowing rates before the crisis. The examination of tails (extreme values) provides answers to such issues as what are the extreme movements expected in financial markets; have we already seen the largest moves; is there a possibility for even larger movements and, are there theoretical processes that can model the type of fat tails in the observed data? The answers to such questions are essential for proper management of financial exposures and laying ground for regulations.
The contributions of this article are twofold. First, the performance of a widely used commercial... more The contributions of this article are twofold. First, the performance of a widely used commercial real-time trading model is compared with the performance of systematic currency traders. Second, the real-time trading model is used to evaluate the statistical properties of foreign exchange rates. The out-of-sample test period is seven years of high-frequency data for four major rates. The trading model yields positive annualized returns (net of transaction costs) in all cases. The null hypothesis of whether the real-time performances of the foreign exchange series are consistent with traditional statistical processes is tested under the probability distributions of the performance measures.
Sizce Türkiye'nin eğitim alanındaki en önemli sorunu nedir? Bu sorunun çözüme kavuşturulmasında a... more Sizce Türkiye'nin eğitim alanındaki en önemli sorunu nedir? Bu sorunun çözüme kavuşturulmasında alt sistemler kuramı çerçevesinde üst sistem,aracı üst sistem ve temel sistemlerin üzerine düşen görevler nelerdir? Bu sorunun çözümüne dönük olarak bu sistemler arasında ortaya çıkabilecek koordinasyon sorunları nelerdir? Bu koordinasyon sorunları nasıl aşılabilir? Bu soruyu yanıtlayabilmeniz için;
African Journal of Business Management, Jan 18, 2011
The purpose of this study was to investigate anger mangement with respect to attachment styles. T... more The purpose of this study was to investigate anger mangement with respect to attachment styles. The participants were 445 (229 females and 216 males, between 16-18 years old) adolescents. Pearson product-moment correlation coefficients and multiple regression analysis were used. As a result of the study, it was found that there was a positive relationship between secure attachment style and trait anger, anger in and anger control. There was a statistically significant positive relationship between preoccuped attachment styles and trait anger, anger in and anger-out. There was also a statistically significant positive relationship between fearful attachment style and trait anger, anger in. Besides, it was found that attachment styles significantly explain the trait anger and the anger expression
YOU CAN RUN, BUT YOU CANNOT HIDE': TRACKING OBJECTS THAT LEAVE THE FIELD-OF-VIEW
In the past, there has been significant research on tracking objects based on features that chara... more In the past, there has been significant research on tracking objects based on features that characterize objects. However, once the features to detect the object are not available from the position of a tracker, it is not clear how to track the object. Our goal in this paper is to track an object even though the object leaves the field-of-view.
The ultimate goal of any testing strategy is to measure profitability. This paper measures the pr... more The ultimate goal of any testing strategy is to measure profitability. This paper measures the profitability of simple technical trading rules based on nonparametric models which maximize the total returns of an investment strategy. The profitability of an investment strategy is evaluated against a simple buy-and-hold strategy on the security and its distance from the ideal net profit. The predictive performance is evaluated by the market timing tests of Henriksson-Merton and Pesaran-Timmermann to measure whether forecasts have economic value in practice. The results of an illustrative example indicate that nonparametric models with technical strategies provide significant profits when tested against buy-and-hold strategies. In addition, the sign predictions of these models are statistically significant.
In this study, 25 female and 15 male mongrel dogs, aged ranging from i to 7 years, were used. The... more In this study, 25 female and 15 male mongrel dogs, aged ranging from i to 7 years, were used. They were subjected to clinical, ultrasonographical and biochemical examinations. Ultrasonographically in 18 of the 40 do gs (45%), different kidney abnormalities were observed, whereas the other 22 dogs were found normaL. Likewise, serum urea and creatinine levels were measured to be higher in the dogs with kidney abnormalities. Serum creatinine elearance estimated using the Cockroft-Gault equation was exceeding the physiological range. In conelusion, for mongrel dogs ultrasonographic examination, measurements of serum urea nitrogen (BUN) and creatinine, and calculation of serum creatinine elearance using the Cockroft-Gault equation might be useful to diagnose early kidney abnormalities.
The Schrodinger equation with one and two dimensional potentials are solved in the frame work of the sl2(R) Lie algebra. Eigenfunctions of the Schrodinger equation for various asymmetric double- well potentials have been determined and the eigenstates are expressed in terms of the orthogonal poly...
In feedforward networks, signals flow in only one direction without feedback. Applications in for... more In feedforward networks, signals flow in only one direction without feedback. Applications in forecasting, signal processing and control require explicit treatment of dynamics. Feedforward networks can accommodate dynamics by including past input and target values in an augmented set of inputs. A much richer dynamic representation results from also allowing for internal network feedbacks. These types of network models are called recurrent network models and are used by Jordan (1986) for controlling and learning smooth robot movements, and by Elman (1990) for learning and representing temporal structure in linguistics. In Jordan's network, past values of network output feed back into hidden units; in Elman's network, past values of hidden units feed back into themselves.
Background. Ineffective erythropoiesis and intramedullary hemolysis are the two important results... more Background. Ineffective erythropoiesis and intramedullary hemolysis are the two important results of pernicious anemia. Hemolysis is one of the risk factors in the formation of gallbladder stones.
We investigated the effects of acamprosate on alcohol-induced oxidative toxicity, microsomal memb... more We investigated the effects of acamprosate on alcohol-induced oxidative toxicity, microsomal membrane Ca2+-ATPase (MMCA) activity and N-methyl-d-aspartate receptor (NMDAR) subunits in rat brain. Forty male rats were equally divided into four groups. The first group was used as control, and the second group received ethanol. Acamprosate and acamprosate plus ethanol each day were administered to rats constituting the third and fourth groups for 21 days, respectively. Brain cortical and hippocampal samples were taken from the four groups after 21 days. Brain cortical lipid peroxidation (LP) levels and MMCA activity were higher in the alcohol group than in control, although glutathione peroxidase (GSH-Px), vitamin C, vitamin E and β-carotene values were lower in the alcohol group than in control. LP levels were further increased in the acamprosate and alcohol + acamprosate groups compared with the alcohol group. GSH-Px, vitamin A, vitamin C, vitamin E and β-carotene in the acamprosate and alcohol + acamprosate groups were further decreased compared with the alcohol group. Hippocampal NMDAR 2A and 2B subunit concentrations were lower in the alcohol group than in control, although they were increased by acamprosate and alcohol + acamprosate. Brain cortical MMCA activity was higher in the acamprosate group than in the alcohol-treated rats, although its activity was lower in the alcohol + acamprosate group than in the acamprosate group. Brain cortical reduced glutathione levels were not found to be statistically different in any of the groups. Oxidative stress has been proposed to explain the biological side effects of experimental alcohol intake. Acamprosate and alcohol-induced oxidative stress decreased brain antioxidant vitamins in the alcoholic rats.
We examine the dynamics of extreme values of overnight borrowing rates in an inter-bank money mar... more We examine the dynamics of extreme values of overnight borrowing rates in an inter-bank money market before a financial crisis during which overnight borrowing rates rocketed up to (simple annual) 4000 percent. It is shown that the generalized Pareto distribution fits well to the extreme values of the interest rate distribution. We also provide predictions of extreme overnight borrowing rates before the crisis. The examination of tails (extreme values) provides answers to such issues as what are the extreme movements expected in financial markets; have we already seen the largest moves; is there a possibility for even larger movements and, are there theoretical processes that can model the type of fat tails in the observed data? The answers to such questions are essential for proper management of financial exposures and laying ground for regulations.
The contributions of this article are twofold. First, the performance of a widely used commercial... more The contributions of this article are twofold. First, the performance of a widely used commercial real-time trading model is compared with the performance of systematic currency traders. Second, the real-time trading model is used to evaluate the statistical properties of foreign exchange rates. The out-of-sample test period is seven years of high-frequency data for four major rates. The trading model yields positive annualized returns (net of transaction costs) in all cases. The null hypothesis of whether the real-time performances of the foreign exchange series are consistent with traditional statistical processes is tested under the probability distributions of the performance measures.
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