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Cura, M. Erkin,Kim, Seung Ho,Cho, Sung Hun,Suhonen, Tomi,Muukkonen, Tatu,Vaajoki, Antti,Sö,derberg, Outi,Kanerva, Ulla,Lee, Soo Wohn,Hannula, Simo Pekka Trans Tech Publications, Ltd. 2011 Materials science forum Vol.695 No.-
<P>High temperature low friction materials are sought for use in engines in order to reduce energy consumption of the machines. Due to the high service temperatures solid lubricating materials are necessary. This study is designed to find the optimal processing conditions for preparing these materials by pulsed electric current sintering. In this study, the Al2O3- 15wt% ZrO2(AZ) nanocomposite was modified with 3 wt% of self-lubricating component (CaF2, BaF2, MoS2, WS2, h-BN, or graphite). After the preparation of the alumina-zirconia powder mixture solid lubricant powder was added. Powders were then mixed in ethanol for 24 h, dried in a rotary evaporator, and in oven at 80°C for 24 h. The particle size distribution of the powders was established with the laser method. Powders were compacted by using pulsed electric current sintering technique at 1300 °C with 50 MPa for 5 min in vacuum. The structure of the materials was studied with XRD and SEM. Density of the compacts was measured with the Archimedes method and their hardness was evaluated by applying HV1 hardness with the instrumented indentation techniques. Their mechanical behavior was further studied with the instrumented scratch testing.</P>
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Üzen Cura Şengül,Kocatepe Vildan,Yıldırım Dilek,Küçükakgün Hilalnur,Atay Selma,Ünver Vesile 한국간호과학회 2020 Asian Nursing Research Vol.14 No.3
Purpose: The aim of this study was to compare the effect of different simulation modalities on knowledge, skill, stress, satisfaction, and self-confidence levels of students receiving undergraduate education in three nursing schools. Method: This was an experimental study. Students applied the scenario of “Respiratory Sounds Assessment” which was prepared according to three different simulation modalities. In the study, the standardized patient, high-fidelity simulation, and partial task trainer were used as simulation modalities. Results: An increase was observed in postpractice knowledge levels of the three groups which had similar knowledge levels before the practice. Virtual Analog Scale stress levels of the students in the standardized patient group were higher than those of others. The students’ mean scores of satisfaction in learning were higher in the standardized patient group. The students in the partial task trainer group had lower scores of self-confidence in learning. Skill scores of the students were lower in the standardized patient practice than those in others. Conclusion: Simulation-based experiences give students the opportunity of experiencing situations they may experience in the actual practice beforehand. Therefore, this may increase their performance in real practices, as reality increases in the standardized patient group.
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Musa Cura,Ahmet Koç,Nurten Aksoy,Zeynep Canan Özdemir 대한혈액학회 2016 Blood Research Vol.51 No.4
BackgroundImmune thrombocytopenia (ITP) is the most common cause of acquired childhood thrombocytopenia and is characterized by increased immune-mediated destruction of circulating thrombocytes. Oxidative damage may be involved in ITP pathogenesis; para-oxonase (PON) and arylesterase (ARE) enzymes are closely associated with the cellular antioxidant system. We investigated the effect of short-term high-dose methyl-prednisolone (HDMP) treatment on the total oxidant status (TOS), total antioxidant ca-pacity (TAC), oxidative stress index (OSI), and PON and ARE enzymatic activity in children with acute ITP.MethodsThirty children with acute ITP constituted the study group and 30 healthy children con-stituted the control group. Children with acute ITP were treated with HDMP: 30 mg/kg for 3 days, then 20 mg/kg for 4 days. The TOS, TAC, OSI, PON, and ARE levels were de-termined before and after 7 days of HDMP treatment.ResultsThe TAC level (P<0.001), and PON (P<0.001) and ARE (P=0.001) activities were lower and the TOS (P=0.003) and OSI (P<0.001) levels were higher in children with acute ITP than those in healthy children in the control group. We also observed statistically sig-nificant increases in the TAC (P<0.01), PON (P<0.001) and ARE levels (P=0.001) and decreases in the TOS (P<0.05) and OSI levels (P<0.05) with 7 days of HDMP treatment compared to their values before treatment.ConclusionOur study demonstrated increased oxidative stress (OSI and TOC) and decreased anti-oxidant capacity (TAC), PON, and ARE in ITP patients and that steroid treatment could be effective in reducing the oxidative stress.
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Chris George Cura Pales,안상현,Jan Paolo Cruz,김광민,김영완 대한대장항문학회 2019 Annals of Coloproctolgy Vol.35 No.4
Low anterior resection syndrome (LARS) refers to a disturbance of bowel function that commonly manifests within 1 month after rectal cancer surgery. A low level of anastomosis and chemoradiotherapy have been consistently found to be risk factors for developing LARS. Thorough history taking and physical examination with adjunctive procedures are essential when evaluating patients with LARS. Anorectal manometry, fecoflowmetry, and validated questionnaires are important tools for assessing the quality of life of patients with LARS. Conservative management (medical, physiotherapy, transanal irrigation), invasive procedures (neuromodulation), and multimodal therapy are the mainstay of treatment for patients with LARS. A stoma could be considered when other treatment modalities have failed. An initial meticulous surgical procedure for rectal cancer, creation of a neorectal reservoir during anastomosis, and proper exercise of the anal sphincter muscle (Kegel’s maneuver) are essential to combat LARS. Pretreatment counseling is a crucial step for patients who have risk factors for developing LARS.
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이상건,Cura, Lalain,이규숙 한국외식경영학회 2008 외식경영연구 Vol.11 No.3
본 연구의 목적은 패밀리레스토랑의 이미지가 고객만족 및 고객충성도에 미치는 영향을 규명하는 것이다. 연구의 목적을 달성하기 위하여 우선 문헌연구를 통해 레스토랑 이미지의 속성을 정하고 사전연구를 통해 도출된 속성을 검증하였다. 검증에 사용된 설문의 수는 397부이다. 설문은 서울에 있는 패밀리레스토랑의 방문고객을 대상으로 이루어졌고, 가설을 검증에 앞서 SPSS 11.5와 Amos 5.0을 이용하여 빈도분석, 기술분석, 탐색적 요인분석, 확인요인분석을 실시하였고, 다중회귀분석을 이용하여 가설검증을 실시하였다. 분석결과 레스토랑 이미지의 음식 및 가격 그리고 분위기 요인이 전반적인 만족, 비교만족, 그리고 가격대비 만족에 정의 영향을 미치는 것으로 나타났다. 추천에 영향을 미치는 레스토랑 이미지요인은 음식 및 가격 그리고 인적서비스요인이고, 재방문에 영향을 미치는 요인은 음식 및 가격 그리고 프로모션 이미지 요인으로 나타났다. 이에 분석결과를 토대로 경영적인 시사점을 제시하였다.
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Effect of Restaurant Image on Customer Satisfaction, and Loyalty -Cases of Casual Dining Restaurants
Lee SangGun,Cura,Lalain,Lee Kyu Sook 한국외식경영학회 2008 외식경영연구 Vol.11 No.3
본 연구의 목적은 패밀리레스토랑의 이미지가 고객만족 및 고객충성도에 미치는 영향을 규명하는 것이다. 연구의 목적을 달성하기 위하여 우선 문헌연구를 통해 레스토랑 이미지의 속성을 정하고 사전연구를 통해 도출된 속성을 검증하였다. 검증에 사용된 설문의 수는 397부이다. 설문은 서울에 있는 패밀리레스토랑의 방문고객을 대상으로 이루어졌고, 가설을 검증에 앞서 SPSS 11.5와 Amos 5.0을 이용하여 빈도분석, 기술분석, 탐색적 요인분석, 확인요인분석을 실시하였고, 다중회귀분석을 이용하여 가설검증을 실시하였다. 분석결과 레스토랑 이미지의 음식 및 가격 그리고 분위기 요인이 전반적인 만족, 비교만족, 그리고 가격대비 만족에 정의 영향을 미치는 것으로 나타났다. 추천에 영향을 미치는 레스토랑 이미지요인은 음식 및 가격 그리고 인적서비스요인이고, 재방문에 영향을 미치는 요인은 음식 및 가격 그리고 프로모션 이미지 요인으로 나타났다. 이에 분석결과를 토대로 경영적인 시사점을 제시하였다.
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