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RISS 인기검색어
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- 저자 : 최동일 ( Dong Il Choi ) (검색결과 41 건)
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최동일,공일승,이은정,소상수,양윤수,홍기환,Choi, Dong-Il,Kong, Il-Seung,Lee, Eun-Jung,So, Sang-Soo,Yang, Yoon-Soo,Hong, Ki-Hwan 대한후두음성언어의학회 2007 대한후두음성언어의학회지 Vol.18 No.1
Background and Objectives: It has been suggested that tonsillectomy possibly causes changes of voice because the morphology of the vocal tract is altered. This may cause serious problems for professional voice users. Materials and Method: Subjects were 26 patients. The oral and nasal sound spectrum of oral vowel /a/, /e/ and /i/ were measured before and after tonsillectomy. The formant frequencies and intensities for oral and nasal spectra were compared. The nasality and fundamental frequencies for oral vowel were measured. Results: The first formant frequencies for oral spectra of all vowels were not changed after surgery, but the second formant frequencies were increased significantly after surgery in the vowel /e/ and /i/. The first and second formant intensities for oral spectra were increased significantly after surgery in the all vowels. The first and second formant frequencies for nasal spectra of all vowels were not changed after surgery, but their intensities for nasal spectra were increased after surgery. The nasalities for oral vowel were not changed after surgery. Conclusion : Tonsillectomy appeared to change the spectral features of oral and nasal components of oral vowel, especially spectral intensities.
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최동일 ( Choi Dong-il ),이근모 ( Lee Keun-mo ),장승현 ( Jang Seung-hyun ) 부산대학교 과학교육연구소 2020 교사교육연구 Vol.59 No.1
본 연구는 초등체육전문지도자의 현실을 보다 근거리에서 보여주고 그것을 통해 현장에 존재하는 구조적 문제에 대해 논의의 기회를 제공하는 것이 목적이다. 따라서 자문화기술지를 통해 중초교사와 스포츠강사, 방과 후 강사를 경험한 연구자의 삶을 탐색적으로 살펴 보았고, 이를 ‘초대 받지 않은 손님’과 ‘우리는 을(乙)인가?’로 정리하였다. 보다 자세히, 중초교사, 스포츠강사, 방과 후 강사를 거치며 이방인이자 을의 입장에서 경험을 살펴보았는데, 그것은 연구자뿐만 아니라 주변 동료들 모두에게 해당되는 얘기였다. 중초교사, 스포츠강사, 방과 후 강사와 교사 간의 보이지 않는 벽이 존재함을 발견하였고, 그 중에서도 스포츠강사와 방과 후 강사와 같은 초등체육 전문지도자의 경우에 1년마다 계약하는 비정규직의 위치가 그들을 ‘을’로 만드는 주요한 환경임을 알 수 있었다. 결국, 연구자의 경험은 스포츠강사 또는 방과 후 강사들이 초등체육의 과도기적 변화가 야기한 모순을 몸소 받아내고 있었다는 사실을 여실히 보여주었고, 그것이 현재의 비정규직의 구조에서 비롯되었음을 보여주었다. The purpose of this study was to show the reality of elementary sports expert leaders from a close distance and thereby provide an opportunity to discuss the structural problems existing in the field. Therefore, the lives of the researchers who have worked as middle and elementary school teachers, sports instructors, and after-school instructors have been examined through auto-ethnography, and the results have been summarized as either 'uninvited guests' and 'are we are subordinates?'. Specifically, the experiences of middle and elementary school teachers, sports instructors, and after-school instructors have been studied from the perspective of an outsider as well as a subordinate, and this was found out to be true for not only the researcher but also for colleagues. Invisible walls existed between middle and elementary school teachers, sports instructors, and after-school instructors and teachers, and among them, professional elementary physical education instructors such as sports instructors and after-school instructors were in a position of temporary workers who makes contract based on a one-year term, and these conditions made them vulnerable to being regarded as a subordinated status. In the end, the researcher's experience showed that sports instructors or after-school instructors were personally accepting the contradictions caused by the transitional changes in elementary sports and showed that it stems from the current structure being dependent on temporary works.
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최동일 ( Dong Il Choi ) 대한간암학회 2011 대한간암학회지 Vol.11 No.1
The recent advance in CT is the multidetector (MD) CT scanner. MDCT increases scan coverage, and can take shorter scan time, thinner sections and longer scan range. Double arterial phase imaging could show the high sensitivity of in hepatic tumor detection. CT angiography by using MDCT is useful in a detailed assessment of hepatic arterial anatomy using a three-dimensional dataset. Dual-energy CT was more recently introduced and popularized. Dual-source CT uses two energies, 140 and 80 kVp. This technique can measure chemical composition by dual-energy index. Dual-energy CT provides the ability for CT to differentiate between different materials at imaging. The latest technologic advancements in MDCT and availability of commercial software allow perfusion CT to offer a variety of clinical and research applications. Perfusion CT imaging can be used for the characterization and treatment monitoring of hepatic malignancies.
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중증장애인의 보조기기 서비스 이용과정에 관한 사례비교 연구 : 거주유형 및 서비스 이해관계자 중심으로
최동일(Dong-il Choi),배영현(young-Hyeon Bae),송원경(Won-Kyung Song),이범석(Bum-Suk Lee) 한국사회복지학회 2020 한국사회복지학회 학술대회 자료집 Vol.2020 No.10
본 연구는 중증장애인의 보조기기 서비스 이용과정에 관하여 거주유형 및 서비스 이해관계자를 중심으로 중증장애인별 사례비교를 통해 실제 보조기기 서비스 이용과정에 대한 이해를 높이고 제한점을 파악하여 수요자 중심의 통합적인 보조기기 서비스 이용 방안을 제시하고자 한다. 본 연구는 질적 사례연구인 개별 면담을 이용해 중증장애인 4명을 대상으로 거주공간 정보, 이해관계자 정보, 사용하고 있는 보조기기에 대한 정보 수집 경로, 보조기기 공적급여 이용 정보, 자부담을 통한 보조기기 획득 경로, 보조기기 사용 교육 및 관리안내, 보조기기 활용 목적 등 보조기기와 관련된 종합적인 내용을 파악하였다. 사례별 면담내용을 기반으로 보조기기 사용자와 이해관계자 간 상호관계를 한눈에 볼 수 있도록 이용과정을 도식화하였고 이용과정 비교분석을 통해 중증장애인별 거주유형에 따른 서비스 이해관계자(이용자, 생산자, 서비스기관, 의사 결정기관 등) 유형 및 역할의 차이를 확인하였으며, 수요자 중심의 통합적인 보조기기 서비스 이용과정 방안을 제시하였다. This study is to analysis of the process of using the assistive technology service with focusing on type of residence and service stakeholder on Severe Disability Persons for providing comprehensive assistive technology service. This case study was used the individual interview with information of stakeholder, residence, process and management of using assistive technology for 4 severe disability persons. Based on the results of interviews by case, the process of the assistive technology service was illustrated so that the relationship between the type of residence and service stakeholder. Also, through the comparative analysis of process of using assistive technology service, there were to confirm the differences in the process of using assistive technology service and provide comprehensive assistive technology service for improving activities of daily living and quality of life in severe disability person.
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최동일(Choi, Dong-Il),이근모(Lee, Keun-Mo) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.2
The purpose of this study was to examine the process of sense of frustration of elementary school sports instructors and how those sense of frustration were formed. In order to accomplish the purpose of the study, qualitative study method was conducted, and 8 sports instructors from elementary school in B. city were selected as the object for study. In order to minimize subjective prejudice regarding environment, consultation with triangulation and experts were repeated numerously. For discussion with experts, through discussion with two sports instructors and two doctors of sports sociology whom can be of practical help to this study, the validity and credibility of the study were secured. The result drawn from this study is as follows. First, the ‘dual-licensed elementary school physical education teacher’ system of 1999 included in the sports instructor system that was first introduced to elementary schools in 2009 presented rosy hopes such as ‘elementary school physical education teacher’ and ‘elementary school teacher specialized in physical education’ to the people who hope to become sports instructors. Second, as years went by, sports instructors had to overcome the hardships and struggles in the reality of school. Third, they had the anxiety and fear for their positions that could be taken away if lay-offs of the sports instructors become a reality. Such anxiety and fear also made them to form sense of frustration by themselves thinking that the decision to become a sports instructor was their fault.
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최동일 ( Dong Il Choi ),임재훈 ( Jae Hoon Lim ) 대한간암학회 2010 대한간암학회지 Vol.10 No.-
C. sinensis induces adenomatous hyperplasia of the epithelium of the bile ducts, and the epithelium of the bile duct persistently exposed to biochemically altered bile may undergo the sequence, hyperplasia-metaplaisa-dysplasia-carcinoma. Cholangiocarcinomas were developed in most hamsters treated with an N-nitroso compound and then infected with C. sinensis. In the patients with intrahepatic duct stones, bile usually infected with bacteria. Mechanical stimuli due to stones, long-lasting bile stasis, and bacterial infection are considered to be the other significant causative factors in cholangiocarcinogenesis. Radiological examinations are essential in the diagnosis and treatment of biliary tree diseases including clonorchiasis, biliary stone disease, and cholangiocarcinoma. As both C. sinensis and intrahepatic duct stones are common, radiological and clinical findings should be attentively investigated for the possible presence of cholangiocarcinoma in patients with clonorchiasis or intrahepatic duct stones.
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최동일 ( Dong Il Choi ),임현철 ( Hyun Chul Rhim ),이민우 ( Min Woo Lee ) 대한간암학회 2012 대한간암학회지 Vol.12 No.1
Lots of recent technical advances in radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC) have introduced. First, contrast-enhanced ultrasound can help to detect the index tumors, residual tumor, and local recurrence. After contrast-enhanced ultrasound for subtle small tumors, we can perform RFA with high confidence. The use of artificial ascites in RFA is a simple and useful technique to minimize collateral thermal injury and to improve the sonic window. Fusion imaging between US and CT or MR during RFA is useful since US can provide real-time imaging and CT or MR provides high quality images with good contrast and spatial resolution. RFA can be performed with fluoroscopy guidance to lipiodol retention tumors.
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