Two large earthquakes(an earthquake doublet)occurred in south-central Turkey on February 6,2023,causing massive damages and casualties.The magnitudes and the relative sizes of the two mainshocks are essential informat...Two large earthquakes(an earthquake doublet)occurred in south-central Turkey on February 6,2023,causing massive damages and casualties.The magnitudes and the relative sizes of the two mainshocks are essential information for scientific research and public awareness.There are obvious discrepancies among the results that have been reported so far,which may be revised and updated later.Here we applied a novel and reliable long-period coda moment magnitude method to the two large earthquakes.The moment magnitudes(with one standard error)are 7.95±0.013 and 7.86±0.012,respectively,which are larger than all the previous reports.The first mainshock,which matches the largest recorded earthquakes in the Turkish history,is slightly larger than the second one by 0.11±0.035 in magnitude or by 0.04 to 0.18 at 95%confidence level.展开更多
AIM： To determine whether listening to music decreases the requirement for dosages of sedative drugs, patients＇ anxiety, pain and dissatisfaction feelings during colonoscopy and makes the procedure more comfortable ...AIM： To determine whether listening to music decreases the requirement for dosages of sedative drugs, patients＇ anxiety, pain and dissatisfaction feelings during colonoscopy and makes the procedure more comfortable and acceptable. METHODS： Patients undergoing elective colonoscopy between October 2005 and February 2006 were randomized into either listening to music （Group 1, n = 30） or not listening to music （Group 2, n = 30）. Anxiolytic and analgesic drugs （intravenous midazolam and meperidine） were given according to the patients＇ demand. Administered medications were monitored. We determined their levels of anxiety using the State-Trait Anxiety Inventory Test form. Patients＇ satisfaction, pain, and willingness to undergo a repeated procedure were self-assessed using a visual analog scale. RESULTS： The mean dose of sedative and analgesic drugs used in group 1 （midazolam： 2.1 ± 1.4, meperidine： 18.1 ± 11.7） was smaller than group 2 （midazolam： 2.4 ± 1.0, meperidine： 20.6 ± 11.5）, but without a significant difference （P 〉 0.05）. The mean anxiety level in group 1 was lower than group 2 （36.7 ± 2.2 vs 251.0 ± 1.9, P 〈 0.001）. The mean satisfaction score was higher in group 1 compared to group 2 （87.8 ± 3.1 vs 58.1 ± 3.4, P 〈 0.001）. The mean pain score in group i was lower than group 2 （74.1 ± 4.7 vs 39.0 ± 3.9, P 〈 0.001）. CONCLUSION： Listening to music during colonoscopy helps reduce the dose of sedative medications, as well as patients＇ anxiety, pain, dissatisfaction during the procedure. Therefore, we believe that listening to music can play an adjunctive role to sedation in colonoscopy. It is a simple, inexpensive way to improve patients＇ comfort during the procedure.展开更多
In this study,the vertical components of broadband teleseismic P wave data recorded by China Earthquake Network are used to image the rupture processes of the February 6th,2023 Turkish earthquake doublet via back proj...In this study,the vertical components of broadband teleseismic P wave data recorded by China Earthquake Network are used to image the rupture processes of the February 6th,2023 Turkish earthquake doublet via back projection analysis.Data in two frequency bands(0.5-2 Hz and 1-3 Hz)are used in the imaging processes.The results show that the rupture of the first event extends about 200 km to the northeast and about 150 km to the southwest,lasting~90 s in total.The southwestern rupture is triggered by the northeastern rupture,demonstrating a sequential bidirectional unilateral rupture pattern.The rupture of the second event extends approximately 80 km in both northeast and west directions,lasting~35 s in total and demonstrates a typical bilateral rupture feature.The cascading ruptures on both sides also reflect the occurrence of selective rupture behaviors on bifurcated faults.In addition,we observe super-shear ruptures on certain fault sections with relatively straight fault structures and sparse aftershocks.展开更多
Forecasting soil temperature at multiple depths is considered to be a core decision-making task for examining future changes in surface and sub-surface meteorological processes,land-atmosphere energy exchange,resilien...Forecasting soil temperature at multiple depths is considered to be a core decision-making task for examining future changes in surface and sub-surface meteorological processes,land-atmosphere energy exchange,resilient agricultural systems for improved crop health and eco-environmental risk assessment.The aim of this paper is to estimate monthly soil temperature(ST)at multiple depth:5,10,20,50 and 100 cm with a hybrid multi-layer perceptron algorithm integrated with the firefly optimizer algorithm(MLP-FFA).To develop the hybrid MLP-FFA model,the monthly ST and relevant meteorological variables for the city of Adana(Turkey)are collated for the period of 2000–2007.Construction of hybrid MLP-FFA model is drawn upon a limited set of predictors,denoted as soil depth,periodicity(or the respective month),air temperature,pressure and solar radiation,while the objective variable for MLP-FFA model is the forecasted ST at multiple depths.To the evaluate MLPFFA,statistical metrics applied to test the model’s performance are:the root mean square error(RMSE),mean absolute error(MAE),mean absolute percentage error(MAPE)and mean bias error(MBE)where the sign of the difference is also considered.In conjunction with statistical metrics,a Taylor diagram is utilized to visualize the degree of similarity between the observed and forecasted soil moisture.In terms of the forecasted results,the hybrid MLPFFA model is seen to outperform the standalone MLP model.The optimal MLP-FFA is attained for soil temperature forecasting at a depth of 20 cm(RMSE,MAPE of 0.546C,2.40%)whereas the optimal MLP is attained for soil temperature forecasting at a depth of 50 cm(RMSE of 0.544℃,2.21%).Conclusively,the study advocates through statistical metrics attained the better utility of the hybrid MLP-FFA hybrid model.Given its superior performance,it is ascertained that the hybrid MLP model integrated with Firefly optimizer is a qualified ancillary tool that can be applied to generate precise soil temperature forecasts at multiple soil depths.展开更多
The structure of the economy seems to have been reshaped for the post-1980 period with the decisions of January 24,1980 and the structural changes that followed.In the 1980s,which can be called the transition process ...The structure of the economy seems to have been reshaped for the post-1980 period with the decisions of January 24,1980 and the structural changes that followed.In the 1980s,which can be called the transition process to a Free-Market Economy and an open economy,on the one hand,the privatization of state institutions and the determination of the prices of goods and services in free market conditions were tried to be ensured in order to withdraw the state from economic life,on the other hand,it was tried to grant freedom to foreign trade and capital movements.While these two main issues were being realized,the import substitution industrialization strategy was abandoned and the export-led growth model was started to be implemented.The last step of this process of opening up and liberalization was realized with the decision numbered 32 in 1989.While the change in the economic structure was achieved through domestic borrowing in the 1980s,with the liberalization of capital movements in the 1990s,it was seen that economic growth and development were tried to be achieved with hot money inflows rather than foreign direct investments.This orientation made the economy more open to crises,and for the first time there was a crisis in the form of the 1994 economic crisis,which was understood to be caused by hot money.The 1994 economic crisis could only be overcome by giving government guarantees to bank deposits and issuing high-interest Treasury Bills.Even the new banking regulations could not prevent the emergence of similar new economic crises in the following years.Because,we can say that the economic crisis experienced in the 2000s brought about a political transformation along with creating great economic problems.展开更多
In comparison to onshore facilities,ships,and their machinery are subjected to challenging external influences such as rolling,vibration,and continually changing air&cooling water temperatures in the marine enviro...In comparison to onshore facilities,ships,and their machinery are subjected to challenging external influences such as rolling,vibration,and continually changing air&cooling water temperatures in the marine environment.However,these factors are typically neglected,or their consequences are deemed to have little effect on machinery,the environment,or human life.In this study,seasonal air&seawater temperature effects on marine diesel engine performance parameters and emissions are investigated by using a full-mission engine room simulator.A tanker ship two-stroke main engine MAN B&W 6S50 MC-C with a power output of 8600 kW is employed during the simulation process.Furthermore,due to its diverse risks,the Marmara Region is chosen as the application area for real-time average temperature data.Based on the research findings,even minor variations in seasonal temperatures have a significant influence on certain key parameters of a ship’s main engine including scavenge pressure,exhaust temperatures,compression and combustion pressures,fuel consumption,power,and NOx-SOx-COx emissions.For instance,during the winter season,the cylinder compression pressure(pc)is recorded at 94 bar,while the maximum pressure(pz)reaches 110 bar.In the summer,pc experiences a decrease of 81 bar,while pz is measured at 101 bar.The emission of nitrogen oxides(NOx)exhibits a measurement of 784 parts per million(ppm)during winter and 744 in summer.The concentration of sulfur oxides(SOx)is recorded at 46 ppm in winter and 53 in summer.Given the current state of global warming and climate change,it is an undeniable fact that the impact of these phenomena will inevitably escalate.展开更多
This research investigates the relation between regional power policies of Turkey and the media strategy of President Erdogan.After the coup attempt on July 15,2016,the Justice and Development Party started to impleme...This research investigates the relation between regional power policies of Turkey and the media strategy of President Erdogan.After the coup attempt on July 15,2016,the Justice and Development Party started to implement regional power policies,which are focusing on security affairs.The political power fell into the hands of the President.Regional power policies are used as a legitimised as a tool for the transition to authoritarianism.The main purpose of this transition is to suppress dissident voices by controlling the media.In this article,I argue that President Erdogan uses regional power policies as a tool to control the national media.The President is trying to create the image of a world leader for himself by using the pro-government media companies.Turkey's of natural gas,the Libya issue and the NATO Summit in Madrid will be discussed in terms of media's perspectives.展开更多
The study examines traditional design approaches for intermediate spaces of residential buildings to support environmentally driven design strategies of current practices.For the evaluation of the potential of traditi...The study examines traditional design approaches for intermediate spaces of residential buildings to support environmentally driven design strategies of current practices.For the evaluation of the potential of traditional design strategies,traditional houses of Korea and Turkey are explored by making a detailed comparison of maru and sofa according to theoretical considerations on intermediate spaces.After examining the concept of the intermediate space and the general characteristics of Korean and Turkish traditional housing,10 cases from 17th to 19th centuries are selected and compared to clarify the features of maru and sofa as intermediate spaces.Based on the results,the arrangement of maru shows characteristics of contradiction between interior rooms and intermediate spaces in a monotonous structural repetition,while sofa presents an apparently hierarchical spatial composition.Sofa has the placeness quality,while maru has the quality of plurality,actively mixing both inside and outside environments.While maru allows various free access with clear spatial continuity,sofa produces a sequential spatial experience with the pleasure of different architectural qualities.Finally,the study suggests opened type and closed type of intermediate space as two possible strategies for modern houses based on the results of comparative analyses.Recent environmental studies in architecture should consider intermediate spaces of various traditional houses due to the insights and possibilities these spatial elements may potentially provide to both architectural practice and theory,especially in a pandemic era.展开更多
The important part of the macroeconomic policies is related to financial sector. Banking, which is a portion of this sector, takes the most important place in both the operation of economic system and the realization ...The important part of the macroeconomic policies is related to financial sector. Banking, which is a portion of this sector, takes the most important place in both the operation of economic system and the realization of the institutional or individual activities. It is well known that the foundation of banking system is based on trust, stability and strong capital formation. The birth and development of the banking sector in Turkey is relatively new. If the roots of the Turkish banking are traced, it is seen that the history goes back to the middle of the nineteenth century. Since the establishment of the Republic of Turkey, the targets of the economic development have been tried to be reached through supporting the industry and banking in the leadership of the State. But the obstacles in the financial system have limited the development of the Turkish banking sector. Since the application of the liberalization policies in the markets, particularly after 1980＇s, the banking sector has been one of the most affected sectors from the liberalization. When the fundamental problems of the Turkish banking sector have been analyzed, they can be enumerated as economic instability, being the financier of the public deficits, being too sensitive to the market risks and being fragile, high input costs, inefficient use of capital, defects in the booking system or weaknesses in the control, problems with restructuring, defects in domestic control, lack of risk management and institutional inner-management. In this study, the development of banking sector will be briefly analyzed for determined periods since 1923. The analysis will include the developments which create economic crises, the role of banks in this process, the defects of the banking sector and the financial system, and the effects of crises on the banking sector on the basis of the cause and effect relation. Economic crisis of February 2001 and the banking crisis will be examined in detail. The new arrangements after the 2001 crisis in the banking sector have be展开更多
AIM:To adapt the low vision-related quality of life(LVQOL) instrument into Turkish language and to assess its validity and reliability.METHODS:The study was conducted in 387 patients attending the Centre of Low Vision...AIM:To adapt the low vision-related quality of life(LVQOL) instrument into Turkish language and to assess its validity and reliability.METHODS:The study was conducted in 387 patients attending the Centre of Low Vision Rehabilitation,Faculty of Medicine,Ankara University.For statistical analyses,the Spearman's correlation coefficient,Cronbach's alpha coefficient and Confirmatory Factor Analysis(CFA) were used.RESULTS:According to results of CFA,the item in the 'Adjustment' subscale because of having the factor loading below 0.40,was excluded from the questionnaire.The reliability of the questionnaire was assessed according to Cronbach's alpha coefficients.The reliability of the 'Distance Vision,Mobility,and Lighting' subscale was ?琢=0.863;of the 'Adjustment' subscale was ?琢=0.694;'Reading and Fine Work' was ?琢=0.791,and 'Activities of Daily Living' was ?琢= 0.770.So these results indicate that the questionnaire is reliable to measure the vision related quality of life of low-vision patients.The correlations between the subscales were also analyzed,and the correlation between 'Adjustment' and 'Reading and Fine Work' was found to be the lowest(rs=0.336,P <0.001),whereas the strongest correlation was found between the 'Reading and Fine Work',and 'Activities of Daily Living'.Additionally,the 'Adjustment' dimension showed the strongest correlation with only 'Distance Vision,Mobility,and Lighting' dimension.CONCLUSION:After removing the last item in the second dimension,the Turkish adaptation of all dimensions of the LVQOL has been shown to be reliable,valid and suitable for use in patients with low vision in Turkey.展开更多
Introduction: DNA repair enzymes continuously monitor DNA to correct damaged nucleotide residues generated by exposure to environmental mutagenic and cytotoxic compounds or carcinogens. Our objective was to investigat...Introduction: DNA repair enzymes continuously monitor DNA to correct damaged nucleotide residues generated by exposure to environmental mutagenic and cytotoxic compounds or carcinogens. Our objective was to investigate the association among XRCC1 (Arg399Gln and Arg194Trp), XRCC3 (Thr241Met), XPD-ERCC2 (Lys751Gln), APE1 (Asp241Glu), PARP-ADPRT (Val762Ala) DNA repair gene polymorphisms and lung cancer in Turkish population. Materials and Methods: Our patient group consists of 90 patients with lung cancer and the control group had 100 healthy individuals all of those smoking. DNA was extracted using the whole blood samples. PCR- RFLP technique was used to investigate the polymorphisms on target genes. Results: There was no significant difference in the genotype distributions of XPD Lys751Gln, XRCC1 Arg194Trp, XRCC3 Thr241Met, APE1 Asp241Glu between lung cancer patients and controls for each polymorphism (p > 0.05). However, there was a significant difference between the genotype distributions of XRCC1 Arg399Gln, and PARP Val762Ala in patients and the control group (p > 0.05). Discussion: Only the polymorphisms of XRCC1 codon 399 and PARP Val762Ala alleles are associated with the risk of lung cancer. Other genotypes were not related to lung cancer.展开更多
In musical instruments, the geometric design and material features of the instrument are the most important factors that determine the sound characteristics of the instrument. Traditional replication and experiment-ba...In musical instruments, the geometric design and material features of the instrument are the most important factors that determine the sound characteristics of the instrument. Traditional replication and experiment-based handcrafting methods are predominant in the production of Turkish Folk Music wind instruments. The instrument manufacturing and standardization approaches, which include the relevant rules of physics and engineering practices, are limited purely to prototype studies for scientific research purposes. It is almost impossible to find studies on Turkish Folk Music wind instrument design and production involving computer aided design and engineering applications. In this study, an example Turkish woodwind instrument, the Turkish Treble Recorder (dilli kaval) is considered, and the air flow behaviour and acoustic (sound) power magnitudes that occur at different air flow rates are simulated in a computer environment using a Computational Fluid Dynamics (CFD) simulation technique. In the study, numerical and visual outputs related to air behaviour at different air flow rates that may be used in the instrument manufacturing phases were obtained. Acoustic power level was also measured experimentally. Simulation outputs (the acoustic power level) were compared to experimental results in order to validate the simulation results. The comparison revealed that the highest relative difference was calculated as 13.32(%). This value indicated that the simulation results were reasonably consistent with the results of the experimental measurement. Additionally, this study was constructed as a case study that may provide reference for future research studies in this field.展开更多
Ten most popular brands of commercial Turkish set-type yoghurts were collected from local retail outlets in Hatay, Turkey for two separate periods, and analyzed for basic nutrients, physico-chemical properties, volati...Ten most popular brands of commercial Turkish set-type yoghurts were collected from local retail outlets in Hatay, Turkey for two separate periods, and analyzed for basic nutrients, physico-chemical properties, volatile aroma compounds and free fatty acid profiles to compare their differences among the yoghurt products. The results showed that there were significant differences (P<0.05, 0.01, or 0.001) and variations in physico-chemical indices, volatile aroma compounds and volatile free fatty acid profiles among the yoghurt brands, which ultimately influence the flavor quality of the product. Acetaldehyde was predominant volatile compound in yoghurts, which followed by acetone, acetoin, diacetyl and ethanol. The level of diacetly was inversely related to titratable acidity, acetaldehyde and ethanoic acid. From ketones with high carbones 2-undecanone and 2-pentadecanone were higher than 2-butanone, 2-nanonane and 2-tridecanone. These ketones are related to fat content of yoghurt. Among short chain free fatty acids, ethanoic (acetic) acid was the most abundant in yoghurts, followed by hexanoic, octanoic and butanoic acids. These differences in detected chemical compositions of volatile compounds and free fatty acids would be applicable to predict flavor, nutritional value, quality control or shelf-life of the commmercial set-type Turkish yoghurts.展开更多
基金the National Key R&D Program of China(No.2022YFF0800601)the National Natural Science Foundation of China(No.U1939204).
文摘Two large earthquakes(an earthquake doublet)occurred in south-central Turkey on February 6,2023,causing massive damages and casualties.The magnitudes and the relative sizes of the two mainshocks are essential information for scientific research and public awareness.There are obvious discrepancies among the results that have been reported so far,which may be revised and updated later.Here we applied a novel and reliable long-period coda moment magnitude method to the two large earthquakes.The moment magnitudes(with one standard error)are 7.95±0.013 and 7.86±0.012,respectively,which are larger than all the previous reports.The first mainshock,which matches the largest recorded earthquakes in the Turkish history,is slightly larger than the second one by 0.11±0.035 in magnitude or by 0.04 to 0.18 at 95%confidence level.
文摘AIM： To determine whether listening to music decreases the requirement for dosages of sedative drugs, patients＇ anxiety, pain and dissatisfaction feelings during colonoscopy and makes the procedure more comfortable and acceptable. METHODS： Patients undergoing elective colonoscopy between October 2005 and February 2006 were randomized into either listening to music （Group 1, n = 30） or not listening to music （Group 2, n = 30）. Anxiolytic and analgesic drugs （intravenous midazolam and meperidine） were given according to the patients＇ demand. Administered medications were monitored. We determined their levels of anxiety using the State-Trait Anxiety Inventory Test form. Patients＇ satisfaction, pain, and willingness to undergo a repeated procedure were self-assessed using a visual analog scale. RESULTS： The mean dose of sedative and analgesic drugs used in group 1 （midazolam： 2.1 ± 1.4, meperidine： 18.1 ± 11.7） was smaller than group 2 （midazolam： 2.4 ± 1.0, meperidine： 20.6 ± 11.5）, but without a significant difference （P 〉 0.05）. The mean anxiety level in group 1 was lower than group 2 （36.7 ± 2.2 vs 251.0 ± 1.9, P 〈 0.001）. The mean satisfaction score was higher in group 1 compared to group 2 （87.8 ± 3.1 vs 58.1 ± 3.4, P 〈 0.001）. The mean pain score in group i was lower than group 2 （74.1 ± 4.7 vs 39.0 ± 3.9, P 〈 0.001）. CONCLUSION： Listening to music during colonoscopy helps reduce the dose of sedative medications, as well as patients＇ anxiety, pain, dissatisfaction during the procedure. Therefore, we believe that listening to music can play an adjunctive role to sedation in colonoscopy. It is a simple, inexpensive way to improve patients＇ comfort during the procedure.
基金supported by the National Key R&D Program of China(No.2022YFF0800601)National Scientific Foundation of China(Nos.41930103 and 41774047).
文摘In this study,the vertical components of broadband teleseismic P wave data recorded by China Earthquake Network are used to image the rupture processes of the February 6th,2023 Turkish earthquake doublet via back projection analysis.Data in two frequency bands(0.5-2 Hz and 1-3 Hz)are used in the imaging processes.The results show that the rupture of the first event extends about 200 km to the northeast and about 150 km to the southwest,lasting~90 s in total.The southwestern rupture is triggered by the northeastern rupture,demonstrating a sequential bidirectional unilateral rupture pattern.The rupture of the second event extends approximately 80 km in both northeast and west directions,lasting~35 s in total and demonstrates a typical bilateral rupture feature.The cascading ruptures on both sides also reflect the occurrence of selective rupture behaviors on bifurcated faults.In addition,we observe super-shear ruptures on certain fault sections with relatively straight fault structures and sparse aftershocks.
文摘Forecasting soil temperature at multiple depths is considered to be a core decision-making task for examining future changes in surface and sub-surface meteorological processes,land-atmosphere energy exchange,resilient agricultural systems for improved crop health and eco-environmental risk assessment.The aim of this paper is to estimate monthly soil temperature(ST)at multiple depth:5,10,20,50 and 100 cm with a hybrid multi-layer perceptron algorithm integrated with the firefly optimizer algorithm(MLP-FFA).To develop the hybrid MLP-FFA model,the monthly ST and relevant meteorological variables for the city of Adana(Turkey)are collated for the period of 2000–2007.Construction of hybrid MLP-FFA model is drawn upon a limited set of predictors,denoted as soil depth,periodicity(or the respective month),air temperature,pressure and solar radiation,while the objective variable for MLP-FFA model is the forecasted ST at multiple depths.To the evaluate MLPFFA,statistical metrics applied to test the model’s performance are:the root mean square error(RMSE),mean absolute error(MAE),mean absolute percentage error(MAPE)and mean bias error(MBE)where the sign of the difference is also considered.In conjunction with statistical metrics,a Taylor diagram is utilized to visualize the degree of similarity between the observed and forecasted soil moisture.In terms of the forecasted results,the hybrid MLPFFA model is seen to outperform the standalone MLP model.The optimal MLP-FFA is attained for soil temperature forecasting at a depth of 20 cm(RMSE,MAPE of 0.546C,2.40%)whereas the optimal MLP is attained for soil temperature forecasting at a depth of 50 cm(RMSE of 0.544℃,2.21%).Conclusively,the study advocates through statistical metrics attained the better utility of the hybrid MLP-FFA hybrid model.Given its superior performance,it is ascertained that the hybrid MLP model integrated with Firefly optimizer is a qualified ancillary tool that can be applied to generate precise soil temperature forecasts at multiple soil depths.
文摘The structure of the economy seems to have been reshaped for the post-1980 period with the decisions of January 24,1980 and the structural changes that followed.In the 1980s,which can be called the transition process to a Free-Market Economy and an open economy,on the one hand,the privatization of state institutions and the determination of the prices of goods and services in free market conditions were tried to be ensured in order to withdraw the state from economic life,on the other hand,it was tried to grant freedom to foreign trade and capital movements.While these two main issues were being realized,the import substitution industrialization strategy was abandoned and the export-led growth model was started to be implemented.The last step of this process of opening up and liberalization was realized with the decision numbered 32 in 1989.While the change in the economic structure was achieved through domestic borrowing in the 1980s,with the liberalization of capital movements in the 1990s,it was seen that economic growth and development were tried to be achieved with hot money inflows rather than foreign direct investments.This orientation made the economy more open to crises,and for the first time there was a crisis in the form of the 1994 economic crisis,which was understood to be caused by hot money.The 1994 economic crisis could only be overcome by giving government guarantees to bank deposits and issuing high-interest Treasury Bills.Even the new banking regulations could not prevent the emergence of similar new economic crises in the following years.Because,we can say that the economic crisis experienced in the 2000s brought about a political transformation along with creating great economic problems.
文摘In comparison to onshore facilities,ships,and their machinery are subjected to challenging external influences such as rolling,vibration,and continually changing air&cooling water temperatures in the marine environment.However,these factors are typically neglected,or their consequences are deemed to have little effect on machinery,the environment,or human life.In this study,seasonal air&seawater temperature effects on marine diesel engine performance parameters and emissions are investigated by using a full-mission engine room simulator.A tanker ship two-stroke main engine MAN B&W 6S50 MC-C with a power output of 8600 kW is employed during the simulation process.Furthermore,due to its diverse risks,the Marmara Region is chosen as the application area for real-time average temperature data.Based on the research findings,even minor variations in seasonal temperatures have a significant influence on certain key parameters of a ship’s main engine including scavenge pressure,exhaust temperatures,compression and combustion pressures,fuel consumption,power,and NOx-SOx-COx emissions.For instance,during the winter season,the cylinder compression pressure(pc)is recorded at 94 bar,while the maximum pressure(pz)reaches 110 bar.In the summer,pc experiences a decrease of 81 bar,while pz is measured at 101 bar.The emission of nitrogen oxides(NOx)exhibits a measurement of 784 parts per million(ppm)during winter and 744 in summer.The concentration of sulfur oxides(SOx)is recorded at 46 ppm in winter and 53 in summer.Given the current state of global warming and climate change,it is an undeniable fact that the impact of these phenomena will inevitably escalate.
文摘This research investigates the relation between regional power policies of Turkey and the media strategy of President Erdogan.After the coup attempt on July 15,2016,the Justice and Development Party started to implement regional power policies,which are focusing on security affairs.The political power fell into the hands of the President.Regional power policies are used as a legitimised as a tool for the transition to authoritarianism.The main purpose of this transition is to suppress dissident voices by controlling the media.In this article,I argue that President Erdogan uses regional power policies as a tool to control the national media.The President is trying to create the image of a world leader for himself by using the pro-government media companies.Turkey's of natural gas,the Libya issue and the NATO Summit in Madrid will be discussed in terms of media's perspectives.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIP),grant number 2019R1F1A10609421F1A.
文摘The study examines traditional design approaches for intermediate spaces of residential buildings to support environmentally driven design strategies of current practices.For the evaluation of the potential of traditional design strategies,traditional houses of Korea and Turkey are explored by making a detailed comparison of maru and sofa according to theoretical considerations on intermediate spaces.After examining the concept of the intermediate space and the general characteristics of Korean and Turkish traditional housing,10 cases from 17th to 19th centuries are selected and compared to clarify the features of maru and sofa as intermediate spaces.Based on the results,the arrangement of maru shows characteristics of contradiction between interior rooms and intermediate spaces in a monotonous structural repetition,while sofa presents an apparently hierarchical spatial composition.Sofa has the placeness quality,while maru has the quality of plurality,actively mixing both inside and outside environments.While maru allows various free access with clear spatial continuity,sofa produces a sequential spatial experience with the pleasure of different architectural qualities.Finally,the study suggests opened type and closed type of intermediate space as two possible strategies for modern houses based on the results of comparative analyses.Recent environmental studies in architecture should consider intermediate spaces of various traditional houses due to the insights and possibilities these spatial elements may potentially provide to both architectural practice and theory,especially in a pandemic era.
文摘The important part of the macroeconomic policies is related to financial sector. Banking, which is a portion of this sector, takes the most important place in both the operation of economic system and the realization of the institutional or individual activities. It is well known that the foundation of banking system is based on trust, stability and strong capital formation. The birth and development of the banking sector in Turkey is relatively new. If the roots of the Turkish banking are traced, it is seen that the history goes back to the middle of the nineteenth century. Since the establishment of the Republic of Turkey, the targets of the economic development have been tried to be reached through supporting the industry and banking in the leadership of the State. But the obstacles in the financial system have limited the development of the Turkish banking sector. Since the application of the liberalization policies in the markets, particularly after 1980＇s, the banking sector has been one of the most affected sectors from the liberalization. When the fundamental problems of the Turkish banking sector have been analyzed, they can be enumerated as economic instability, being the financier of the public deficits, being too sensitive to the market risks and being fragile, high input costs, inefficient use of capital, defects in the booking system or weaknesses in the control, problems with restructuring, defects in domestic control, lack of risk management and institutional inner-management. In this study, the development of banking sector will be briefly analyzed for determined periods since 1923. The analysis will include the developments which create economic crises, the role of banks in this process, the defects of the banking sector and the financial system, and the effects of crises on the banking sector on the basis of the cause and effect relation. Economic crisis of February 2001 and the banking crisis will be examined in detail. The new arrangements after the 2001 crisis in the banking sector have be
文摘AIM:To adapt the low vision-related quality of life(LVQOL) instrument into Turkish language and to assess its validity and reliability.METHODS:The study was conducted in 387 patients attending the Centre of Low Vision Rehabilitation,Faculty of Medicine,Ankara University.For statistical analyses,the Spearman's correlation coefficient,Cronbach's alpha coefficient and Confirmatory Factor Analysis(CFA) were used.RESULTS:According to results of CFA,the item in the 'Adjustment' subscale because of having the factor loading below 0.40,was excluded from the questionnaire.The reliability of the questionnaire was assessed according to Cronbach's alpha coefficients.The reliability of the 'Distance Vision,Mobility,and Lighting' subscale was ?琢=0.863;of the 'Adjustment' subscale was ?琢=0.694;'Reading and Fine Work' was ?琢=0.791,and 'Activities of Daily Living' was ?琢= 0.770.So these results indicate that the questionnaire is reliable to measure the vision related quality of life of low-vision patients.The correlations between the subscales were also analyzed,and the correlation between 'Adjustment' and 'Reading and Fine Work' was found to be the lowest(rs=0.336,P <0.001),whereas the strongest correlation was found between the 'Reading and Fine Work',and 'Activities of Daily Living'.Additionally,the 'Adjustment' dimension showed the strongest correlation with only 'Distance Vision,Mobility,and Lighting' dimension.CONCLUSION:After removing the last item in the second dimension,the Turkish adaptation of all dimensions of the LVQOL has been shown to be reliable,valid and suitable for use in patients with low vision in Turkey.
文摘Introduction: DNA repair enzymes continuously monitor DNA to correct damaged nucleotide residues generated by exposure to environmental mutagenic and cytotoxic compounds or carcinogens. Our objective was to investigate the association among XRCC1 (Arg399Gln and Arg194Trp), XRCC3 (Thr241Met), XPD-ERCC2 (Lys751Gln), APE1 (Asp241Glu), PARP-ADPRT (Val762Ala) DNA repair gene polymorphisms and lung cancer in Turkish population. Materials and Methods: Our patient group consists of 90 patients with lung cancer and the control group had 100 healthy individuals all of those smoking. DNA was extracted using the whole blood samples. PCR- RFLP technique was used to investigate the polymorphisms on target genes. Results: There was no significant difference in the genotype distributions of XPD Lys751Gln, XRCC1 Arg194Trp, XRCC3 Thr241Met, APE1 Asp241Glu between lung cancer patients and controls for each polymorphism (p > 0.05). However, there was a significant difference between the genotype distributions of XRCC1 Arg399Gln, and PARP Val762Ala in patients and the control group (p > 0.05). Discussion: Only the polymorphisms of XRCC1 codon 399 and PARP Val762Ala alleles are associated with the risk of lung cancer. Other genotypes were not related to lung cancer.
文摘In musical instruments, the geometric design and material features of the instrument are the most important factors that determine the sound characteristics of the instrument. Traditional replication and experiment-based handcrafting methods are predominant in the production of Turkish Folk Music wind instruments. The instrument manufacturing and standardization approaches, which include the relevant rules of physics and engineering practices, are limited purely to prototype studies for scientific research purposes. It is almost impossible to find studies on Turkish Folk Music wind instrument design and production involving computer aided design and engineering applications. In this study, an example Turkish woodwind instrument, the Turkish Treble Recorder (dilli kaval) is considered, and the air flow behaviour and acoustic (sound) power magnitudes that occur at different air flow rates are simulated in a computer environment using a Computational Fluid Dynamics (CFD) simulation technique. In the study, numerical and visual outputs related to air behaviour at different air flow rates that may be used in the instrument manufacturing phases were obtained. Acoustic power level was also measured experimentally. Simulation outputs (the acoustic power level) were compared to experimental results in order to validate the simulation results. The comparison revealed that the highest relative difference was calculated as 13.32(%). This value indicated that the simulation results were reasonably consistent with the results of the experimental measurement. Additionally, this study was constructed as a case study that may provide reference for future research studies in this field.
文摘Ten most popular brands of commercial Turkish set-type yoghurts were collected from local retail outlets in Hatay, Turkey for two separate periods, and analyzed for basic nutrients, physico-chemical properties, volatile aroma compounds and free fatty acid profiles to compare their differences among the yoghurt products. The results showed that there were significant differences (P<0.05, 0.01, or 0.001) and variations in physico-chemical indices, volatile aroma compounds and volatile free fatty acid profiles among the yoghurt brands, which ultimately influence the flavor quality of the product. Acetaldehyde was predominant volatile compound in yoghurts, which followed by acetone, acetoin, diacetyl and ethanol. The level of diacetly was inversely related to titratable acidity, acetaldehyde and ethanoic acid. From ketones with high carbones 2-undecanone and 2-pentadecanone were higher than 2-butanone, 2-nanonane and 2-tridecanone. These ketones are related to fat content of yoghurt. Among short chain free fatty acids, ethanoic (acetic) acid was the most abundant in yoghurts, followed by hexanoic, octanoic and butanoic acids. These differences in detected chemical compositions of volatile compounds and free fatty acids would be applicable to predict flavor, nutritional value, quality control or shelf-life of the commmercial set-type Turkish yoghurts.
