TURKISH ECONOMY AND COMPARATIVE MAIN INDICATOR

Turgut ÖZKAN 동북아시아문화학회 2017 동북아 문화연구 Vol.1 No.52

TURKISH ECONOMY AND COMPARATIVE MAIN INDICATORS Turgut Ozkan After the global crisis which started in 2008, the production balance of the world shifted to Asia. Refraining from producing solutions for structural economic problems of Western countries caused them to be passive against this change. Turkey, analyzed the global change correctly, has canalized to have a correct position by making unimportant the policy of integration to the west which has maintained desperately for years. This study aims to determine whether Turkey has adequate economic and financial performance for the new roadmap or not. Thus, the main economic and financial indicators of Turkey are analyzed comparatively with other countries. A conclusion was reached that Turkey economy has a strong, effective and sustainable economic and financial performance except for the problems of unemployment and inflation.

Effects of Chronic Aluminum Administration on Blood and Liver Iron-Related Parameters in Mice

Gunfer Turgut,Bunyamin Kaptanoglu,Sebahat Turgut,Yasar Enli,Osman Genc 연세대학교의과대학 2004 Yonsei medical journal Vol.45 No.1

In this study, the effects of chronically administered aluminum on iron metabolism-related parameters of liver and blood of mice were investigated. An additional purpose to determine how chronic aluminum administration together with vitamin E as an antioxidant to mice changed the parameters related to iron metabolism. For these purposes, we used 21 adult female Balb-c mice in this study. The animals were divided into three groups: one group with aluminum administered chronically, another group with aluminum plus vitamin E administered chronically, and the control group. Serum levels of hemoglobin, ferritin, iron, transferrin, hematocrit, total iron binding capacity (TIBC), as well as percentage of transferrin saturation were determined in all groups. In addition, the liver tissue levels of ferritin and iron were analyzed. Hemoglobin and hematocrit levels of the aluminum group and aluminum plus vitamin E group were significantly decreased compared to the control. In conclusion, no changes occurred in the serum iron related parameters although Al induced anemia in mice when Al administered chronically. There was an increase in the levels of liver iron and ferritin with Al, but Vit E had no effect on the changes of all blood and liver parameters caused by Al.

Erratum- How will surface treatments affect the translucency of porcelain laminate veneers?

Sedanur Turgut,Bora Bagis,Elif Aydogan Ayaz,Fatih Mehmet Korkmaz,KıvançUtku Ulusoy,Yildirim Hakan Bagis 대한치과보철학회 2014 The Journal of Advanced Prosthodontics Vol.6 No.2

The article 'How will surface treatments affect the translucency of porcelain laminate veneers?' authored by Sedanur Turgut, Bora Bagis, Elif Aydogan Ayaz, Fatih Mehmet Korkmaz, KıvançUtku Ulusoy, and Yildirim Hakan Bagis published in February issue [Vol 6, No 1] of The Journal of Advanced Prosthodontics (2014), has an erratum.

Post-buckling analysis of Timoshenko beams with various boundary conditions under non-uniform thermal loading

Turgut Kocaturk,Seref Doguscan Akbas 국제구조공학회 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.40 No.3

This paper focuses on post-buckling analysis of Timoshenko beams with various boundary conditions subjected to a non-uniform thermal loading by using the total Lagrangian Timoshenko beam element approximation. Six types of support conditions for the beams are considered. The considered highly non-linear problem is solved by using incremental displacement-based finite element method in conjunction with Newton-Raphson iteration method. As far as the authors know, there is no study on the post-buckling analysis of Timoshenko beams under uniform and non-uniform thermal loading considering full geometric non-linearity investigated by using finite element method. The convergence studies are made and the obtained results are compared with the published results. In the study, the relationships between deflections, end rotational angles, end constraint forces, thermal buckling configuration, stress distributions through the thickness of the beams and temperature rising are illustrated in detail in postbuckling case.

Disorders Center, Fujieda Heisei Memorial Hospital, Fujieda, Shizuoka, Japan

Turgut Akgül,Kerim Sarıyılmaz,Murat Korkmaz,Okan Özkunt,Özcan Kaya,Fatih Dikici 대한척추외과학회 2018 Asian Spine Journal Vol.12 No.1

Study Design: Retrospective analysis of adolescent idiopathic scoliosis. Purpose: This study aimed to investigate the influence of distinct distal fusion levels on spinopelvic parameters in patients with adolescent idiopathic scoliosis (AIS) who underwent posterior instrumentation and fusion surgery. Overview of Literature: The distal fusion level selection in treatment of AIS is the one of milestone to effect on surgical outcome. Most of the paper focused on the coronal deformity correction and balance. The literature have lack of knowledge about spinopelvic changing after surgical treatment and the relation with distal fusion level. We evaluate the spinopelvic and pelvic parameter alteration after fusion surgery in treatment of AIS. Methods: A total of 100 patients with AIS (88 females and 12 males) were retrospectively reviewed. Patients were assigned into the following three groups according to the distal fusion level: lumbar 2 (L2), lumbar 3 (L3), and lumbar 4 (L4). Using a lateral plane radiograph of the whole spine, spinopelvic angular parameters such as thoracic kyphosis (TK), lumbar lordosis (LL), pelvic incidence (PI), sacral slope (SS), and pelvic tilt (PT) were radiologically assessed. Results: The mean age was 15±2.4 years, and the mean follow-up period was 24.27±11.69 months. Regarding the lowest instrumented vertebra, patients were categorized as follows: 30 patients in L2 (group 1), 40 patients in L3 (group 2), and 30 patients in L4 (group 3). TK decreased from 36.60±13.30 degrees preoperatively to 26.00±7.3 degrees postoperatively in each group (p =0.001). LL decreased from 52.8±9.4 degrees preoperatively to 44.30±7.50 degrees postoperatively (p =0.001). Although PI showed no difference preoperatively among the groups, it was statistically higher postoperatively in group 3 than in the other groups (p <0.05). In addition, in group 2, PI decreased from 50.60±8.74 degrees preoperatively to 48.00±6.84 degrees postoperatively (p =0.027). SS decreased from 35.20±6.40 degrees preoperatively to 33.40±5.80 degrees postoperatively (p =0.08, p >0.05). However, mean SS was significantly higher in group 3 (p =0.042, p <0.05). PT decreased from 15.50±7.90 degrees preoperatively to 15.2±7.10 degrees postoperatively. The positive relationship (28.5%) between LL and PI measurements was statistically significant (r =0.285; p =0.004, p <0.01). Furthermore, the positive relationship (36.5%) between LL and SS measurements was statistically significant (r =0.365; p =0.001, p <0.01). Conclusions: When the distal instrumentation level in AIS surgery is below L3, a significant change in PT and SS (pelvic parameters) is anticipated.

Analyses of plate perforation for various penetrator-target plate combinations

Turgut Akyürek 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.4

In this study, kinetics and kinematics of perforation process for various penetrator- target plate combinations is analyzed, a methodology in a flow chart format to decide on failure mode, and for each failure mode, an appropriate combined analytical model that requires only common test data is proposed. The proposed methodology and analytical models that are recommended for the related failure mode are assessed by using a huge amount of test data from the literature. The penetrator-target plate configurations cover the penetrators with ogive, conical, hemi-spherical and blunt noses, at different plate thicknesses, and plate thickness to penetrator diameter ratios, made of different metallic materials. Analyzed failure modes include ductile hole enlargement, plugging, dishing, and petal forming. Assessment is done for impact velocities ranging between 215-863 m/s. The estimations based on the proposed flow chart and recommended failure models are in good agreement with the related test data and numerical analysis results.

Effect of etoricoxib on experimental oxidative testicular ischemia–reperfusion damage in rats induced with torsion– detorsion

Turgut Yapanoglu,Fatih Ozkaya,Ali Haydar Yilmaz,Renad Mammadov,Ferda Keskin Cimen,Erkan Hirik,Durdu Altuner 대한약리학회 2017 The Korean Journal of Physiology & Pharmacology Vol.21 No.5

Etoricoxib features antioxidant and anti-inflammatory properties concomitantly, suggesting that it may be beneficial in testicular ischemia reperfusion (I/R) damage. Our aim is to investigate the effects of etoricoxib on testicular I/R damage induced with torsion-detorsion (TD). The etoricoxib + torsion-detorsion (ETD) groups of animals were given etoricoxib in 50 and 100 mg/kg of body weight (ETD- 50 and ETD-100), while the testes torsion-detorsion (TTD) and sham operation rat group (SOG) animals were given single oral doses of distilled water as a solvent. TTD, ETD-50 and ETD-100 groups were subjected to 720o degrees torsion for four hours, and detorsion for four hours. The SOG group was not subjected to this procedure. Biochemical, gene expression and histopathological analyses were carried out on the testicular tissues. The levels of malondialdehyde (MDA), myeloperoxidase (MPO), interleukin-1 beta (IL-1β) and tumor necrosis factor alpha (TNF-α) were significantly higher, and the levels of total glutathione (tGSH) and glutathione reductase (GSHRd) were significantly lower in the TTD group, compared to the ETD-50, ETD-100 and SOG groups. Etoricoxib at a dose of 100 mg/kg better prevented I/R damage than the 50 mg/kg dose. Etoricoxib may be useful in clinical practice in the reduction of I/ R damage on testes caused by torsion-detorsion.

Two-port laparoscopic appendectomy assisted with needle grasper comparison with conventional laparoscopic appendectomy

Turgut Donmez,Adnan Hut,Huseyin Avaroglu,Sinan Uzman,Dogan Yildirim,Sina Ferahman,Erdinc Cekic 대한외과학회 2016 Annals of Surgical Treatment and Research(ASRT) Vol.91 No.2

Purpose: The 2-port laparoscopic appendectomy technique (TLA) is between the conventional 3-port and single-port laparoscopic appendectomy surgeries. We compared postoperative pain and cosmetic results after TLA with conventional laparoscopic appendectomy (CLA) by a 3-port device. Methods: Patients undergoing TLA were matched with patients undergoing CLA between February 2015 and November 2015 at the same institution. Thirty-two patients underwent TLA with a needle grasper. The appendix was secured by a percutaneous organ-holding device (needle grasper), then removed through a puncture at McBurney’s point. Another 38 patients underwent CLA. Patient demographics, operative details, and postoperative outcomes were collected and evaluated. Results: One patient in the TLA group developed a wound infection and 1 patient in the CLA group developed a postoperative intra-abdominal abscess and 3 wound infections. There was no significant difference between the groups when comparing the length of hospital stay, time until oral intake, and other complications. The pain score in the first 12 hours after surgery was significanly higher in CLA group than the TLA group (P < 0.001). Operative time was significantly shorter in the CLA group compared to the TLA group (P < 0.001). Conclusion: TLA using a needle grasper was associated with a significantly lower pain score 12 hours after surgery, better cosmetic results, and lower cost, than the CLA 3-port procedure because of the fewer number of ports.

High School Teachers’ Perceptions Regarding Principals’ Ethical Leadership in Turkey

Turgut Karaköse 서울대학교 교육연구소 2007 Asia Pacific Education Review Vol.8 No.3

This study has been carried out in order to determine to what extent principals demonstrate ethical leadership behaviors, and to present suggestions on the strength of these findings. The study has a descriptive quality in evaluating the teachers’ perceptions and uses the Ethical Leadership Scale (ELS) developed by Yilmaz (2006), so as to determine the opinions of the participant teachers. The analysis of the data has been performed via the “SPSS for Windows ” package program. In addition, such statistical processes as a significance test, standard deviation, one-way variance analysis (ANOVA), Kruskal-Wallis H Test, Mann-Whitney U Test have also been carried out. The findings reveal that principalsadequately perform their ethical responsibilities like treating their staff justly and encouraging them, being fair, understanding, patient and humble, traits which all exist in the “communicative ethics, climatic ethics and ethics in decision making ” levels at the state high schools in the city of Kütahya, Turkey. On the other hand, the participant teachers in the study have clearly admitted that the principals engaged in such ethical behaviors in the “behavioral ethics ” level as self-evaluation, not lying and protecting individual rightspoorly.

Preparation of chitosan, sunflower and nano-iron based core shell and its use in dye removal

Turgut, Esra,Alayli, Azize,Nadaroglu, Hayrunnisa Techno-Press 2020 Advances in environmental research Vol.9 No.2

Many industries, such as textiles, chemical refineries, leather, plastics and paper, use different dyes in various process steps. At the same time, these industrial sectors are responsible for discharging contaminants that are harmful and toxic to humans and microorganisms by introducing synthetic dyes into wastewater. Of these dyes, methylene blue dye, which is classified as basic dyes, is accepted as a model dye. For this reason, methylene blue dye was selected in the study and its removal from the water was studied. In this study, two efficient biosorbents were developed from chitosan and sunflower waste, an agro-industrial waste and modified using iron nanoparticles. The biosorption efficiency was evaluated for methylene blue (MB) dye removal from aqueous solution under various parameters such as treating agent, solution pH, biosorbent dosage, contact time, initial dye concentration and temperature. We investigated the kinetic properties of dye removal from water for Chitosan-Sunflower (CS), Chitosan-Sunflower-Nanoiron (CSN). When the wavelength of MB dye was spectrophotometrically scanned, the maximum absorbance was determined as 660 nm. For the core shell biosorbents we obtained, we found that the optimum time for removal of MB from wastewater was 60 min. The pH of the best pH was determined as 5 in the studied pH. The most suitable temperature for the experiment was determined as 30℃. SEM-EDAX, TEM, XRD, and FTIR techniques were used to characterize biosorbents produced and modified in the experimental stage and to monitor the change of biosorbent after dye removal. The interactions of the paint with the surface used for removal were explained by these techniques. It was calculated that 80% of CS and 88% of CSN removed MB in optimum conditions. Also, the absorption of MB dye onto the surface was investigated by Langmiur and Frendlinch isotherms and it was determined from the results that the removal was more compatible with Langmiur isotherm.