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Search Results: 1 - 10 of 160871 matches for " Hikmet KO?Y???T "
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The Relationship Between Serum Levels of Anti-Cyclic Citrullinated Peptide Antibodies and Disease Activity in Patients With Rheumatoid Arthritis
K?ksal DEVEC?,Hu?lya DEVEC?,Korhan Bar?? BAYRAM,Hikmet KOY???T
Türkiye Fiziksel Tip ve Rehabilitasyon Dergisi , 2012,
Abstract: Objective: Although there is an opinion that anti-cyclic citrullinated peptide antibody (anti-CCP) is a reliable diagnostic and prognostic indicator in rheumatoid arthritis (RA), its association with disease activity and severity is uncertain. This study has been planned to determine the relationship between anti-CCP antibody levels and the disease activity in patients with RA. Materials and Methods: A total of 48 patients, who have been diagnosed with RA, were included in the study. After physical examination, all patients were evaluated with clinical and laboratory parameters. The clinical symptoms were assessed using visual analog scale (VAS), disease activity score (DAS-28) and Health Assessment Questionnaire (HAQ). Rheumatoid factor (RF), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), thrombocyte, leukocyte, hemoglobin and anti-CCP levels were investigated. Results: The anti-CCP results were positive in 33 patients (68.7%) and negative in 15 patients (31.3%). Anti-CCP was positive in 30.4% of RF-negative patients. A significant difference was observed in average RF levels when the anti-CCP positive and negative patients were compared, however, there was no significance between other parameters. In logistic regression analysis of multiple parameters, higher DAS-28 scores and RF positivity were associated with 5.95 and 5.4 times greater risk of being anti-CCP positive, respectively. Conclusion: Anti-CCP can be used in the diagnosis of patients with seronegative RA and also may be useful for reflecting disease activity. Turk J Phys Med Re-hab 2012;58:267-71.
Spontaneous Pneumothorax as a Complication of Cystic Bronchioloalveolar Carcinoma: Pathology, HRCT Findings and Review of the Literature
Ali Ko?yi?it,Erkan Y?lmaz,Akif Hikmet Cimrin,Aydanur Karg?
Turk Toraks Dergisi , 2012,
Abstract: We present a rare case of cystic bronchioloalveolar cacinoma (BAC) which was complicated by spontaneous pneumothorax. Descriptions about the mechanism of cysts and complications of pneumothorax in BAC are few in the literature. Check-valve mechanism is one of these factors which may be responsible for the cystic lesions and spontaneous pneumothorax in cystic BAC. Narrowing of the respiratory bronchioles by the tumor cells should be a cause of the check-valve mechanism. In our case, high resolution CT (HRCT) showed that some of the cysts have a connection with the airways, which was confirmed by pathology. This case is original because the connection between the airways and cysts was supported by not only pathology specimens but also HRCT.
A Study on Determining the Hydropower Potential of ?ine Dam in Turkey  [PDF]
Cengiz Ko, Y?ld?r?m Bayaz?t, Recep Bak??
Computational Water, Energy, and Environmental Engineering (CWEEE) , 2016, DOI: 10.4236/cweee.2016.52008
Abstract: This study has been conducted with the purpose of determining the hydroelectric potential that can be utilized by Cine dam which will be constructed for irrigation, overflow control and for energy production purposes on the Cine stream (which is located as an important arm of Büyük Menderes River in Turkey). The study will also compare other research conducted by various organizations. In order to determine the hydroelectric energy potential, the SIMAHPP 4 (Simulate and Assess the Feasibility of Hydropower Projects) professional software has been utilized. It has been observed that the calculated hydroelectric potential conforms to energy potential calculated by other organizations such as DSI (State Hydraulic Works). Especially the turbine power, installed power, turbine design flow rate and annual energy production values in the studies have been realized with close values to the real ones. The power plant which is planned to have an average of natural streams of the past 43 years has been designed with an annual power production capacity of 210.87 GWh/year (without regulation ratio) and with installed power of 48,144 MW along with a design flow rate of 35 m3/s. As a result, since these water structures have high costs associated with them and also since they will have to be functional for many years, it will be beneficial to use various different computational methods.
NOISE FACTORS IN HEALTHCARE FACILITIES: A SURVEY OF HOSPITALS IN TURKEY
Filiz BAL KOY???T
Middle East Technical University Journal of the Faculty of Architecture , 2012,
Abstract:
MONTESSOR E T M ALAN VE ALMAYAN ANAOKULU RENC LER N N SOSYAL BECER LER N N KAR ILA TIRILMASI
Sezai KOY???T,G?khan KAYILI
Selcuk Universitesi Sosyal Bilimler Enstitusu Dergisi , 2008,
Abstract: This study was conducted to compare the social abilities of kindergarden children who wereeducated through Montessori method and the mainstream children. The participants of this studyare 122 kindergarden children in Selcuk University Vocational Education Faculty IhsanDogramac Application Kindergarden in 2007 and 2008. Kindergarden Class and KindergardenBehaviour Scale developed by Merrell (1994) was used as the data collection mean. It is seen thatthere is a considerable difference between children who were educated through Montessorimethod and the mainstream children in their Social Cooperation, Social Interaction and SocialIndependence points.
Mapping of Precipitation, Temperature and Evaporation Distributions in the Porsuk Basin Using Distant Forecasting Methods  [PDF]
Recep Bak??, Y?ld?r?m Bayaz?t, Hakan Uygu?gil, Cengiz Ko
Computational Water, Energy, and Environmental Engineering (CWEEE) , 2017, DOI: 10.4236/cweee.2017.64021
Abstract: Geographical data are of great importance in meteorology and climate science. These data can create the areal distribution models analyzed by spatial interpolation methods. The values of the areas without measurement data are estimated with these distribution models. In this study, distribution of meteorological parameters such as precipitation, temperature and evaporation in Porsuk basin, which is determined as research area, was investigated by Inverse Distance Weighting (IDW) and Ordinary Kriging methods. Actual meteorological data analyzed of the basin do not show a normal distribution statistically. Therefore, the data were firstly subjected to normalization and then analyzed according to the IDW and Ordinary Kriging methods to create distribution maps of precipitation, temperature and evaporation data. Quadratic mean error values were compared to investigate the reliability of analyzes. In this study, the analysis results of precipitation, temperature and evaporation data have been calculated by two different methods. Ordinary Kriging method has been determined as the method making the most accurate estimation.
A Linear Programming Approach for Parallel Cell Scheduling with Sequence-Dependent Setup Times  [PDF]
Tu?ba Y?ld?z, Besim Türker ?zalp, ?lker Kü?üko?lu, Alk?n Yurtkuran, Nursel ?ztürk
American Journal of Operations Research (AJOR) , 2014, DOI: 10.4236/ajor.2014.43015
Abstract:

In this study, we consider the problem of scheduling a set of jobs with sequence-dependent setup times on a set of parallel production cells. The objective of this study is to minimize the total completion time. We note that total customer demands for each type should be satisfied, and total required production time in each cell cannot exceed the capacity of the cell. This problem is formulated as an integer programming model and an interface is designed to provide integrity between data and software. Mathematical model is tested by both randomly generated data set and real-world data set from a factory that produce automotive components. As a result of this study, the solution which gives the best alternative production schedule is obtained.


Effect of proton pump inhibitors on platelet inhibition activity of clopidogrel in Chinese patients with percutaneous coronary intervention
Kwan J, Htun WW, Huang Y, Ko W, Kwan T
Vascular Health and Risk Management , 2011, DOI: http://dx.doi.org/10.2147/VHRM.S22273
Abstract: t of proton pump inhibitors on platelet inhibition activity of clopidogrel in Chinese patients with percutaneous coronary intervention Original Research (3550) Total Article Views Authors: Kwan J, Htun WW, Huang Y, Ko W, Kwan T Published Date June 2011 Volume 2011:7 Pages 399 - 404 DOI: http://dx.doi.org/10.2147/VHRM.S22273 Joanne Kwan1, Wah Wah Htun2, Yili Huang3, Wilson Ko3, Tak W Kwan3 1Boston University, Boston, MA, USA; 2Lutheran Medical Center, Brooklyn, NY, USA; 3Beth Israel Medical Center, New York, NY, USA Background: The purpose of this study was to examine the effect of proton pump inhibitors (PPI) on the antiplatelet activity of clopidogrel in a consecutive series of Chinese patients after they had received coronary stents. Methods: A sample of 51 consecutive Chinese patients treated with coronary stents and taking PPI and clopidogrel for more than 30 days were enrolled in this study. Mean values for platelet residual units and percentage inhibition before PPI (+PPI) and 14 days after discontinuation of PPI (-PPI) were compared using the paired t-test. Results: There was no effect of concomitant use of esomeprazole and clopidogrel or omeprazole and clopidogrel on the inhibition assay, but platelet residual units and percentage inhibition showed statistically significant improvement after stopping lansoprazole in Chinese patients who were on chronic clopidogrel therapy. Clopidogrel resistance existed more frequently in the Chinese-American population examined, and was as high as 68% (+PPI) to 73% (-PPI). Conclusion: The clopidogrel resistance found is cause for concern, although its relationship with clinical events is currently unknown in this population. Further study with other thienopyridines or genetic variant analysis is suggested.
Dielectric behaviour of graded spherical cells with an intrinsic dispersion
Y. T. C. Ko,J. P. Huang,K. W. Yu
Physics , 2004, DOI: 10.1088/0953-8984/16/3/026
Abstract: The dielectric properties of single-shell spherical cells with an intrinsic dielectric dispersion has been investigated. By means of the dielectric dispersion spectral representation (DDSR) for the Clausius-Mossotti (CM) factor, we express the dispersion strengths as well as the characteristic frequencies of the CM factor analytically in terms of the parameters of the cell model. These analytic expressions enable us to assess the influence of various model parameters on the electrokinetics of cells. Various interesting behaviours have been reported. We extend our considerations to a more realistic cell model with a graded core, which can have spatial gradients in the conductivity and/or permittivity. To this end, we address the effects of a graded profile in a small-gradient expansion in the framework of DDSR.
Mapping of Stream Flow Trends in Porsuk Basin Using GIS Environment  [PDF]
Y?ld?r?m Bayaz?t, Recep Bak??, Cengiz Ko
Journal of Geoscience and Environment Protection (GEP) , 2019, DOI: 10.4236/gep.2019.79005
Abstract: In this study, trends of minimum, average and maximum flows were investigated in Porsuk basin, which is a sub-basin of Sakarya basin and then changes in flows were mapped using Geographical Information Systems (GIS). In the study, in 10 flow gauging stations across the Porsuk basin, monthly average, maximum and minimum flow data is used covering the period 1961-2013 (53 years). When analyzing the distribution of observed trends in the basin, a trend has been observed in most of the river flows. A decreasing trend has been observed overall in the basin. Trends are generally decreasing over time except for a few stations. As a result, increasing trends are observed in the west part of the basin; while in the east part of the basin decreasing trends are observed. When average and maximum monthly flows are investigated, decreasing trends are observed in the stations except DSI-12182. Trend analysis of 10 flow gauging stations across the Porsuk basin is investigated by Mann-Kendall method. Trend distribution was made according to flow trends of basin by transferring Z values to GIS.
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