Browsing by Author "Eroglu, S"
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Item ANALYSIS OF THE DETERMINANTS OF CUSTOMER SATISFACTION IN AN INTERNATIONAL MANUFACTURING FIRMSelim, H; Selim, S; Eroglu, SToday, applying an effective customer relationship management, which is one of the key processes of supply chain management, becomes a must to provide a sustainable competitive advantage. Customer relationship management is a customer-focused strategy, and it is based on collection, assessment and use of customer data. Under the implementation of customer relationship management in an international firm in food sector, factors that affect satisfaction levels of retailers and distributors, which take place in the supply chain, are investigated in this study. The results of the analysis, which are carried out by using factor analysis method and ordered probit model, shed light on the customer-related strategies and decisions of the firm by revealing the factors that affect customers' satisfaction levels as well as the level of importance of these factors.Item Effects of electrical pretreatment conditions on osmotic dehydration of apple slices: Experimental investigation and simulationYildiz, H; Icier, F; Eroglu, S; Dagci, GElectrical pretreatments at 9 different conditions consisting of the combination of 3 different voltage gradients (20, 27, and 32 V/cm) and 3 different application times (10, 20, and 30 s) were applied on apple slices. Apple slices were osmotically dehydrated in 50% sucrose solution at 40 degrees C until their total dry matter content (TDM) reached to 40%. The effect of pretreatment conditions on the change of water loss and solid gain during osmotic dehydration was investigated, and effective diffusion coefficients were determined. The time needed to reach up to 40% TDM content was predicted by using the numeric solution of unsteady state mass transfer equations and diffusion coefficients via MATLAB code written. The electrical pretreatments reduced the osmotic dehydration time by in the range of 26-64%. The final water and solid distributions of apple slices were simulated in ANSYS. Modeling and simulation results were in good agreement with experimental data (p < 0.05). Industrial relevance: Since the electrical pretreatment both shortens the osmotic dehydration time and increases the water removed per unit energy used, its application prior to osmotic dehydration processes in the commercial productions will be economical. The proposed modeling and simulation approach for assessment of the effects of electrical pretreatments on osmotic dehydration characteristics may provide valuable information on the scaling up of these conditions in the industrial scale systems. (C) 2016 Elsevier Ltd. All rights reserved.Item Effects of the Neuro-Linguistic Programing Technique Used in the Education Given to Nurses about Central Venous Applications and Blood Culture Collection on Their Knowledge LevelÇevik, K; Çetin, SP; Eroglu, SObjective: The present study was conducted as an experimental study and aimed at determining the effectiveness of the neuro-linguistic programing (NLP) technique used in the education given to nurses about central venous catheter (CVC) applications and blood culture collection on their knowledge level. Methods: This present study was conducted with 65 nurses in two state hospitals in the Manisa Province, Turkey, between April 2015 and May 2015. Data were collected using three questionnaires prepared by the researchers in accordance with the relevant literature: Nurses' Sociodemographic Characteristics Questionnaire, Nurses' Perceptions of CVC Care and Blood Culture Collection Questionnaire, and Nurses' Knowledge of CVC Care and Blood Culture Collection Questionnaire. Randomization was not performed in the experimental and control groups. The training with NLP techniques lasts longer than standard training. Because of the working conditions of the hospitals, some nurses had to leave early in training. The nurses who continued training formed the experimental group and those who had to leave early in training formed the control group. Results: The mean scores obtained from the Nurses' Knowledge of CVC Care and Blood Culture Collection Questionnaire were 0.62 +/- 0.13 in the control group and 0.63 +/- 0.08 in the experimental group before the training and 0.66 +/- 0.12 in the control group and 0.74 +/- 0.09 in the experimental group after the training. While there was no significant difference between the two groups (control and experimental) before the education (p>0.05), there was a significant difference between them after the education (p<0.05). Conclusion: In line with the study findings, it can be said that NLP techniques used in the training were effective.Item Identification of the Variations in the CPT1B and CHKB Genes Along with the HLA-DQB1*06:02 Allele in Turkish Narcolepsy Patients and Healthy PersonsCingoz, S; Agilkaya, S; Oztura, I; Eroglu, S; Karadeniz, D; Evlice, A; Altungoz, O; Yilmaz, H; Baklan, BBackground: The HLA-DQB1*06:02 allele across all ethnic groups and the rs5770917 variation between CPT1B and CHKB genes in Japanese and Koreans are common genetic susceptibility factors for narcolepsy. This comprehensive genetic study sought to assess variations in CHKB and CPT1B susceptibility genes and HLA-DQB1*06:02 allele status in Turkish patients with narcolepsy and healthy persons. Methods: CHKB/CPT1B genes were sequenced in patients with narcolepsy (n=37) and healthy persons (n=100) to detect variations. The HLA-DQB1*06:02 allele status was determined by sequence specific polymerase chain reaction. Results: The HLA-DQB1*06:02 allele was significantly more frequent in narcoleptic patients than in healthy persons (p=2x10(-7)) and in patients with narcolepsy and cataplexy than in those without (p=0.018). The mean of the multiple sleep latency test, sleep-onset rapid eye movement periods, and frequency of sleep paralysis significantly differed in the HLA-DQB1*06:02-positive patients. rs5770917, rs5770911, rs2269381, and rs2269382 were detected together as a haplotype in three patients and 11 healthy persons. In addition to this haplotype, the indel variation (rs144647670) was detected in the 5 ' upstream region of the human CHKB gene in the patients and healthy persons carrying four variants together. Conclusion: This study identified a novel haplotype consisting of the indel variation, which had not been detected in previous studies in Japanese and Korean populations, and observed four single-nucleotide polymorphisms in CHKB/CPT1B. The study confirmed the association of the HLA-DQB1*06:02 allele with narcolepsy and cataplexy susceptibility. The findings suggest that the presence of HLA-DQB1*06:02 may be a predictor of cataplexy in narcoleptic patients and could therefore be used as an additional diagnostic marker alongside hypocretin.Item The Score for Allergic Rhinitis study in Turkey, 2020Cingi, C; Muluk, NB; Susaman, N; Küçükcan, N; Kar, M; Altintas, M; Altin, F; Eroglu, S; Kef, K; Ipçi, K; Güven, SG; Dizdar, SK; Çayir, S; Salcan, I; Korkmaz, MÖ; Yilmaz, AS; Topuz, B; Basak, S; Ural, A; Çobanoglu, BY; Erkan, AN; Oghan, F; Eskiizmir, G; Çakir, BÖ; Coskun, BU; Kara, CO; Gültekin, E; Üçüncü, H; Selcuk, A; Altuntas, EE; Durmus, K; Özlügedik, S; Toros, SZ; Karamese, O; Bayindir, T; Baylan, MY; Iynen, I; Yilmaz, O; Yilmaz, N; Avci, D; Aysel, A; Bal, C; Baser, S; Bozkurt, Z; Çatli, T; Çetinkaya, EA; Öner, F; Coskun, ZÖ; Dizdar, D; Eksi, E; Gümüslü, BC; Kaplan, AK; Kinar, A; Parildar, H; Resuli, AS; Köroglu, E; Yazici, D; Kurt, Y; Dilber, M; Çukurova, I; Annesi-Maesano, IObjective: This study aimed to determine how prevalent allergic rhinitis (AR) is in Turkey and to compare the current prevalence with the figures obtained 10 years earlier. Methods: This study included 9,017 participants. The minimum number of participants required from each center was determined via a stratified sampling technique according to regional demographic characteristics as ascertained from the last census. For each region, both men and women were administered the score for allergic rhinitis (SFAR) questionnaire and a score for each participant was calculated based on the responses supplied. Results: A total of 9,017 individuals (55.3% men and 44.7% women) took part in this study. Of these, 94.4% were urban residents and 5.6% lived in a rural setting. Of the men, 38.5% self-reported as suffering from AR. The corresponding figure in women was 40.5%. The overall prevalence of AR, as deduced on the basis of the SFAR, was found to be 36.7%. Comparing the prevalence in different regions, we found that AR was the least prevalent in the Black Sea region with a frequency of 35.8%. The highest prevalence was in the Mediterranean region, where the prevalence was 37.7%. There was no statistical significance in the apparent differences in prevalence between different geographical regions. Despite this, however, there was a clear increase in the frequency of AR over the preceding decade. This increase was most pronounced in the South-Eastern Anatolian region, where the frequency rose from 21.0% to 36.9%. Conclusion: Our results indicate that there has been a marked increase in the prevalence of AR in every region in Turkey over the last 10 years. This could be related to living conditions in urban environments. Alterations in lifestyle, urban living, air pollution causing impairments in immune defense mechanisms, and other aspects of modern lifestyles may account for the increase in AR in Turkey.