A Nationwide Survey on the Facilities and Personnel for Endoscopic Sedation: Results from 50 Qualified Endoscopy Units of Teaching Hospitals Accredited by the Korean Society of Gastrointestinal Endoscopy (KSGE)

Seon-Young Park,이준규,Jung-Wook Kim,Tae Hee Lee,Chang-Hwan Park,Jae-Yong Jang,Byung-Wook Kim,Byung Ik Jang,Quality management and Endoscopic sedation committee of Korean Society of Gastrointestinal Endo 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.6

Background/Aims: This study aimed to determine the current status of facilities, equipment, and personnel for endoscopic sedationfrom endoscopy units of representative hospitals in South Korea. Methods: A questionnaire survey was conducted on 50 qualified endoscopy units accredited by the Korean Society of GastrointestinalEndoscopy. Results: All included endoscopy units had regulations and educational programs regarding sedation training for endoscopists andnursing personnel. There present one assisting nurse during endoscopy in 35 units (70%) and at least two nurses in 12 units (24.0%). All endoscopy units had examination rooms equipped with oxygen supply and suction systems. Endoscopist-directed sedationwas performed in 48 units (96.0%). Propofol-based sedation was the most used sedation method. All units had a separate recoverybay. The daily number of patients per bed was greater than 10 in 17 units (34.0%). In 26 (52.0%) units, a single nurse cared for ≥10patients per day. All the units fulfilled the discharge criteria. Conclusions: This study presents data regarding endoscopic sedation clinical practice in 50 endoscopy units in South Korea. Thisstudy presents the current status of endoscopic sedation clinical practice in 50 qualified endoscopy units accredited by the KSGE,which provide excellent quality management.

New sedatives and analgesic drugs for gastrointestinal endoscopic procedures

Jae Min Lee,Yehyun Park,Jin Myung Park,Hong Jun Park,Jun Yong Bae,Seung Young Seo,Jee Hyun Lee,Hyung Ku Chon,Jun-Won Chung,Hyun Ho Choi,Jun Kyu Lee,Byung-Wook Kim,Endoscopic Sedation Committee of the 대한소화기내시경학회 2022 Clinical Endoscopy Vol.55 No.5

Procedural sedation has become increasingly common in endoscopy. Sedatives and analgesics induce anxiolysis and amnesia. In addi- tion, an appropriate level of sedation is necessary for safe procedures including therapeutic endoscopy. Midazolam and propofol are the most commonly used drugs in sedative endoscopy. In recent years, the need to ascertain the safety and effectiveness of sedation has in- creased in practice. Therefore, new sedatives and analgesic drugs for optimal sedative endoscopy, have recently emerged. This article reviews the characteristics of sedatives and analgesics, and describes their clinical use in gastrointestinal endoscopy.

A Study on Optimum Machinability of NiTi Shape Memory Alloy Via AWJ

Sedat Güven,Meltem Altın Karataş,Hasan Gökkaya 한국정밀공학회 2024 International Journal of Precision Engineering and Vol.25 No.3

The high ductility behaviour and high hardening of Nickel–Titanium (NiTi) alloys during cutting make them one of the alloys with low machinability. In addition, poor chip breakage and high tool wear are observed when machining these materials with conventional manufacturing methods. One of the unconventional processing methods, abrasive water jet (AWJ), is an alternative method for cutting low machinability materials. In this study, NiTi shape memory alloy (SMA) was subjected to AWJ drilling under different machining parameters. The aim of the research is to determine the optimum kerf (K), surface roughness (Ra) and material removal rate (MRR) variables resulting from the drilling process by examining the effect of process variables such as water pressure (WP), stand-off distance (SoD) and feed rate used in AWJ machining of NiTi SMAs. Taguchi-based Gray Relational Analysis (GRA), one of the multi-criteria decision-making methods, was used to optimise machining parameters in the drilling of NiTi SMAs with AWJ. The effect percentages of the test levels in the drilling operations were determined using Analysis of Variance (ANOVA). As a result of the experimental study, optimum levels were obtained for K, MRR and Ra at low WP, medium SoD and high feed rate. According to the result obtained from ANOVA, the parameter with the highest effect on K, MRR and Ra was determined as feed rate with 34.65%.

Extraspinal Incidental Findings on Routine MRI of Lumbar Spine: Prevalence and Reporting Rates in 1278 Patients

Sedat Alpaslan Tuncel,Bekir Çaglı,Aslan Tekatas¸,Mehmet Yadigar Kırıcı,Ercüment Ünlü,Hakan Gençhellaç 대한영상의학회 2015 Korean Journal of Radiology Vol.16 No.4

The aim of the present study was to determine the prevalence and reporting rate of incidental findings (IF) in adult outpatients undergoing lumbar magnetic resonance imaging (MRI). Re-evaluation of a total of 1278 lumbar MRI images (collected from patients with a mean age of 50.5 years, range 16–91 years) captured between August 2010–August 2011 was done by a neuroradiologist and a musculoskeletal radiologist. IFs were classified according to organ or system (liver, gallbladder, kidney, bladder, uterus, ovary, lymph node, intestine and aorta). The rate of reporting of a range of IF was examined. The outcome of each patient’s treatment was evaluated based on review of hospital records and by telephone interviews. A total of 253 IFs were found in 241 patients (18.8% of 1278). Among these, clinically significant IFs (n = 34) included: 2 renal masses (0.15%), 2 aortic aneurysms (0.15%), 2 cases of hydronephrosis (0.15%), 11 adrenal masses (0.86%), 7 lymphadenopathies (0.55%), 6 cases of endometrial or cervical thickening (0.47%), 1 liver hemangioma (0.08%), 1 pelvic fluid (0.08%) and 2 ovarian dermoid cysts (0.15%). Overall, 28% (71/253) of IFs were included in the clinical reports, while clinically significant findings were reported in 41% (14/34) of cases. Extraspinal IFs are commonly detected during a routine lumbar MRI, and many of these findings are not clinically significant. However, IFs including clinically important findings are occasionally omitted from formal radiological reports.

Dielectric and proton conductivity studies in organic electrolytes based on 2-perfluoroalkyl-ethyl-azides

Sedat Cos gun,Sevim Ünügür Çelik,Abdulhadi Baykal,Ayhan Bozkurt 한국물리학회 2010 Current Applied Physics Vol.10 No.1

Intrinsically proton conducting organic electrolytes based on 2-perfluoroalkyl-ethyl-azides were synthesized via 1,3 cycloaddition between 2-perfluoroalkyl-ethyl-azide and alkynes. FT-IR, elemental analysis and NMR methods were used to characterize the resulting organic electrolytes. Thermal properties were analyzed with thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) and the morphology of the organic electrolytes was studied with X-ray diffraction (XRD). The effect of chain length on proton conductivity was investigated with impedance spectrometer. Dielectric constant and electrical modulus formalisms were analyzed and the maximum proton conductivity was measured as 10-2 mS/cm at 180 ℃.

Normality and quotient in crossed modules over groupoids and 2-groupoids

Sedat Temel 강원경기수학회 2019 한국수학논문집 Vol.27 No.1

The aim of this paper is to consider the categorical equivalence between crossed modules within groupoids and 2-groupoids; and then relate normality and quotient in these two categories.

The tension in Turkish teacher education: Conflict and controversy during the transformation from an academic approach to a professional approach

Sedat Yüksel 서울대학교 교육연구소 2008 Asia Pacific Education Review Vol.9 No.3

Most of the reforms, which have been undertaken in the last 30 years in the Turkish educational system, are about teacher education, When we examine the teacher education curriculum from the perspective of these reforms, it has been observed that there is a controversy between the academic and professional approaches used in these curricula. While the reforms undertaken in 1982 and 1997 were in favor of the academic approach, the latest reform undertaken in 2006 was made to strengthen the professional aspects of teacher education curriculum. In this paper, Turkish teacher education reforms are introduced in the light of the professional and the academic approaches, which have always been the topic of discussions about teacher education.

Evaluation and comparison of the marginal adaptation of two different substructure materials

Sedat Guven,Veysel Eratilla,Ebru Sumer,Ali Ihsan Zengingul,Sabiha Zelal Ulku,Tahir Karaman 대한치과보철학회 2015 The Journal of Advanced Prosthodontics Vol.7 No.3

PURPOSE In this study, we aimed to evaluate the amount of marginal gap with two different substructure materials using identical margin preparations. MATERIALS AND METHODS Twenty stainless steel models with a chamfer were prepared with a CNC device. Marginal gap measurements of the galvano copings on these stainless steel models and Co-Cr copings obtained by a laser-sintering method were made with a stereomicroscope device before and after the cementation process and surface properties were evaluated by scanning electron microscopy (SEM). A dependent t-test was used to compare the mean of the two groups for normally distributed data, and two-way variance analysis was used for more than two data sets. Pearson's correlation analysis was also performed to assess relationships between variables. RESULTS According to the results obtained, the marginal gap in the galvano copings before cementation was measured as, on average, 24.47 ± 5.82 µm before and 35.11 ± 6.52 µm after cementation; in the laser-sintered Co-Cr structure, it was, on average, 60.45 ± 8.87 µm before and 69.33 ± 9.03 µm after cementation. A highly significant difference (P<.001) was found in marginal gap measurements of galvano copings and a significant difference (P<.05) was found in marginal gap measurements of the laser-sintered Co-Cr copings. According to the SEM examination, surface properties of laser sintered Co-Cr copings showed rougher structure than galvano copings. The galvano copings showed a very smooth surface. CONCLUSION Marginal gaps values of both groups before and after cementation were within the clinically acceptable level. The smallest marginal gaps occurred with the use of galvano copings.

Comparative study on crown closure estimations using two different remote sensing data: Landsat ETM + and IKONOS

Sedat KELEŞ,Alkan GÜNLÜ,Emin Zeki BAŞKENT 한국산림과학회 2012 Forest Science And Technology Vol.8 No.4

In this paper, we developed empirical relationships between crown closure and Landsat Thematic Mapper (TM) and IKONOS spectral response in a forest ecosystem in Turkey. The linear relationships between the crown closure and satellite images were examined and for that the normalized difference vegetation index (NDVI) was generated for correlation analysis. Satellite images were georeferenced with respect to corresponding forest stand type maps for the same area. The digital numbers (DNs) in all bands were positively correlated with the crown closure in Landsat-7ETM image. Regarding the Landsat ETM+, the DN of NIR band (band 4) had the highest correlation coefficient value with the crown closure (r=0.715), and the DN of blue band (band 1) had the lowest correlation value with the crown closure (r=0.373) and explains 51.1% and 13.9% of data variability, respectively, in Landsat-7 ETM image. In IKONOS image, the DNs in three bands (red, green and NIR) were positively correlated with the crown closure at the level of r=0.385, r=0.359 and r=0.829, respectively. The NIR band of the Landsat-7-ETMþimage showed the highest correlation with the NDVI (r=0.886) and the red band had the lowest correlation with the NDVI (r=0.419),while the IKONOS image showed that the NIR band had the highest correlation with the NDVI (r=0.781) and the green band resulted in the lowest correlation with the NDVI (r=0.367). Results also indicated that the relationships between the crown closure and the NDVIs of Landsat-7 ETM and IKONOS were positively correlated with r=0.794and r=0.871, respectively.

Communication Education and Necessities: Visual Components

( Sedat Cereci ) 한국교육공학회 2014 한국교육공학회 학술대회발표자료집 Vol.2014 No.2

This study searches necessity of technology in communication education and evaluates increasing of productivity of education with technological facilities and emphasis causes of successful results in communication education with visual technological facilities. Technology is the most popular and the most common component of life in 21.st century and technology is used in almost all sectors in the world. Technology was firstly used in education in the United States in the first half of 20.th century and visual messages were used in military films in this education and than television was used in education and visual technology departments were began to set in universities. Many technological instruments are used in education like video or like television or like computer or like internet and all instruments ease to understand and to comprehend for students. Communication is the main action of people and base of civilization and communication education is often renewed because of contemporary technology. Different methods are applied in communication education and different instruments are used in lessons. Numerous people use images to tell and to comprehend and economical organizations also use images to attract people because of approach of people. Visual messages ease communication and communication education need technological visual facilities.