Long-term Stability after Reduction of Mandible Fracture by Keyhole Plate: Evaluation at the Time of Plate Removal

Cheon, Kyeong-Jun,Cho, Seoung-Won,Jang, Won-Seok,Kim, Ju-Won,Yang, Byoung-Eun Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-

Background: Various types of miniplates have been developed and used for the reduction of facial bone fractures. We introduced Yang's Keyhole (YK) plate, and reported on its short-term stability. The purpose of this study was to evaluate the long-term stability of the YK plate, as a follow-up study, by examining the patients who had used the YK plate among the patients with the reduction of mandible fractures and who visited for plate removal. Methods: We reviewed the medical records of 16 patients who underwent mandibular fracture fixation using a YK plate (group I) and 17 patients who underwent mandibular fracture fixation using a conventional plate (group II). Assessment was then made on malunion, occlusal stability, discomfort during the application, and clinical symptoms. Results: From January 2015 to December 2017, a total of 36 patients underwent mandibular fracture surgery using a YK plate. A total of 16 patients received plate removal. Among them, 15 were male and 1 female. The average age was 26 years. The applied surgical sites were the 12 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of YK plate was an average of 335 days. During the same period, 45 people underwent surgery on the conventional plate. A total of 17 patients received plate removal. Among them, 15 were male and 2 females. The average age was 36 years. The applied surgical sites were the 8 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of the conventional plate was an average of 349 days. No malocclusion occurred at the time of removal, and occlusion was stable. No patient complained of joint disease or discomfort. Conclusion: The YK plate system, in which the screw was first inserted and the plate was applied, for clinical convenience did not cause any particular problem and no significant difference from the conventional plate.

Accent-Epenthesis Interaction Revisited

Hyun-ju Kim,In Young Yang 한국언어학회 2016 언어 Vol.41 No.2

Kim, Hyun-ju and In Young Yang. 2016. Accent-Epenthesis Interaction Revisited. Korean Journal of Linguistics, 41-2, 239-265. This study investigates the lexical statistical patterning in North Kyungsang Korean accent-epenthesis interaction. Previous phonetic studies of Korean epenthetic vowels showed that inserted vowels are not phonetically distinct from corresponding lexical vowels (Kim & Kochetov 2011; H-J. Kim 2015), suggesting that complete neutralization would not help NKK speakers access underlying representations of epenthetic vowels to avoid accenting epenthetic vowels. We performed a corpus study to examine whether other informative cues are available in the lexical probabilistic patterning, which might help NKK speakers with the covert interaction of accent and epenthesis. The results show that the lexical stochastic patterns would not provide a cue for the accent avoidance of epenthetic high vowels. Rather, it is assumed that there is a clear distinction of lexical strata in Korean phonology, helping NKK speakers learn the interaction. We propose a formal analysis adopting comparative phonotactics developed by Hayes (in press), based on two lexical strata: NATIVE and FOREIGN (e.g., Ito and Mester 1999). This analysis provides a better approach to accounting for the covert interaction that does not involve the learnability problem. (The State University of New York, Korea and Seoul National University)

S-580 : Vitamin D and carotid subclinical atherosclerosis in SLE

( Chang Bum Bae ),( Ju Yang Jung ),( Bo Ram Go ),( Hyun Ah Kim ),( Chang Hee Suh ) 대한내과학회 2013 대한내과학회 추계학술대회 Vol.2013 No.1

Vitamin D and carotid subclinical atherosclerosis in SLE Chang-Bum Bae, Ju-Yang Jung, Bo-ram Go, Hyun-Ah Kim, Chang-Hee Suh Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea Introduction Atherosclerosis develops earlier in systemic lupus erythematosus (SLE) and is the important cause of mortality. It has been suggested that vitamin D deficiency contributed cardiovascular disease and immune dysregulation in SLE. Methods One-hundred two female patients with SLE and 52 normal controls (NC) were recruited. The carotid artery intima-media thickness (cIMT) and plague were assessed by B-mode ultrasound at the carotid artery level. Vitamin 25(OH)D3 levels were checked by immunoradiometric assay using the Bio-Line 25(OH)D3-Ria CT kit (Bio-Line S.A., Belgium). Disease activity markers were checked at the time of enrollment. Results The cIMT of SLE is 0.41±0.08mm, which is higher than NC (0.37±0.11 mm, p=0.012). Also, carotid artery plague index (PI) of SLE is higher than NC (0.68±1.39 vs 0.26±0.87, p=0.026). The cIMT was correlated with age (r=0.442, p<0.001), body mass index (r=0.246, p=0.013), waist-hip ratio (r=0.245, p=0.013), SLE disease activity index (r=0.239, p=0.016), taking aspirin (r=0.244, p=0.013), and the carotid artery PI was correlated with renal involvement (r=0.224, p=0.023) in patients with SLE. Vitamin 25(OH)D3 was not showed correlation with cIMT and carotid artery PI. Also, it was not correlated with disease activity markers. Conclusion In patients with SLE, the risk of cardiovascular disease measured by cIMT and carotid artery plaque was higher than NC, which may be derived from systemic inflammation. However, vitamin D levels were not showed significant correlations with carotid subclinical atherosclerosis. It may be not suitable to assess vitamin D as marker of disease activity or subclinical atherosclerosis.

GC-ECD를 이용한 구기자의 농약잔류 분석

맹주양 외 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.2

In this paper, for analysis Dried chinese matrimony vine at domestically-grown samples for pesticide residues simultaneous were used by multicomponent analysis and GC / ECD. To analyze pesticides are Chlorothalonil, Pyridaphenthion, Azoxystrobin, Fluazinam, Propineb, Chlorfenapyr and Dinotefuran as written standards for the calibration curve after each sample were analyzed on the qualitative and quantitative. Regions are common in samples in Pyridaphenthion, Chlorothalonil, Azoxystrobin, Propineb, and Dinotefuran were not detected but the two pesticides(Fluazinam and Chlorfenapyr) were detected. ◁표 삽입▷(원문을 참조하세요) When the pesticide is detected as shown in the above table, Chlorfenapyr allowance does not go beyond the limits the Dried chinese matrimony vine hit 2.0ppm, Chlorfenapyr for all classified into five regions goods acceptance and Fluazinam was not detected the remaining four regions of the detected in terms of replacing, to replace the hit is detected the acceptance criteria across the 0.3ppm are classified throw-out.

Treadmill을 이용한 중년 여성들을 혈중지질의 변화

양주철,이일호 경남대학교 교육문제연구소 1999 敎育理論과 實踐 Vol.9 No.-

The Purpose of the study is to know the Relation of the disease of adult people. The plasma Lipoprotein after treadmill exercise routines. The subjects were 15 healthy woman in their 40s and proceeded the exercise 12 weeks at the 70%of their maximal heart rate. the training frequency was 5 times a week and exercise time the 30 minutes. 1. T.G are reduced significantly after 12-week training 30.4mg/dℓ comparing with them before training. (P< 0.05) 2. LDL-C are reduced signigicantly after 12-week 29.5mg/dℓ training comparing with them before training. (P< 0.05) 3. HDL-C are reduced significantly after 12-weektraining. (P< 0.05) 4. Hb are reduced significantly after 12-week 6.4mg/dℓ training comparing with them before training. (P< 0.05) In conclusion, when the subjects continued doing exercise for 12 weeks at the intensity of 70% their maximal heart rate, the serum lipid was chanced reducing significantly. Accordingly, the training intercity and duration of this study sill natice the importance if chronic exerese in their 40s woman.

임의의 각을 갖는 스트립 線路의 BEND 不連續 特性에 관한 연구

양승인,윤의중,전주성 崇實大學校 1988 論文集 Vol.18 No.-

The purpose of this study is to evaluate the discontinuity effects of the bend. The scattering parameters are compared at various frequencies to study bend discontinuity effects of the stripline with arbitrary bending angle. These results may be useful in the computer-aided design of microwave integrated circuits.

老人女性의 운동에 대한 認識 및 與件과 實態에 관한 調査硏究

梁順子,權永玉,元周淵 忠南大學校體育科學硏究所 1988 體育科學硏究誌 Vol.6 No.1

The purpose of this study was to provide a fundamental information for plan for positive and active participation or execution of exercise in Female elderly. Questionaire about the Leisure activities, the understanding for exercise and health, the actual and given condition of exercise participation and facilities was used for this study. 330 Aged women (over 60 year-old) who live in Seoul city were answered the Questionaire. Following conclusions were obtained were obtained : 1. Aged women's main daily works are managing house hold duties, attending a lecture in College for elderly, Seeing and Hearing of T. V. or Radio. And their Leisure activities are very simple (not various) and Static, for example seeing and Hearing of T. V. or Radio, gardening, reading, chess and Korean playing cards etc. 2. Aged women are very interested in Health and they point out illness and lack of exercise as a factor of weakness. Furthermore they understand the necessity of exercise for health and their daily life in old age, and also have a lot of intention to do exercise. 3. Exercises that aged women are enjoying or want to enjoy are taking a walk, mountain climbing, physical exercises, Aerobic dance, Badminton, and Jogging. 4. Almost aged women are doing exercise sometimes or usually, and also are seeing and hearing a T. V. or Radio for sports game. 5. Places that aged women are doing excercise are generally not well equipped place (e. g. medicinal water fountain, low hill, and around their house). Besides almost doing exercise alone or just with intimate friends and family. Club sports activities are not general. 6. As inconvinient factor for exercise, a lot of aged women pointed out the not specially equipped or established sports facilities for elderly, lack of number of equipment, and the long distance from home to facilities.

대학생들의 비서인식조사

양혜선,이영희,이주혜 이화여자대학교 법정대학 비서학과 1991 비서학연구 Vol.- No.11

센서 위치 보정을 통한 원추형 자기베어링 로터의 위치 제어

양승준,곽병철,김주영,이재응 중앙대학교 기술과학연구소 2001 기술과학연구소 논문집 Vol.31 No.-

이 논문에서는 원추형 자기베어링으로 지지된 고속 연삭기 로터의 정밀진동제어에 관한 연구를 수행하였다. 이러한 연구 목적으로 달성하기 위하여 전력증폭기와 원추형 자기베어링을 포함한 각 축에 대하여 이산시간 모델을 규명하였으며, 그 결과를 모의 제어기의 설계시 활용하였다. 또한 제어기의 입력값을 조절하여 자기베어링 공간내에 로터가 최적의 위치에 놓일 수 있도록 조정하였으며, 위치를 검출하는 센서와 전자기적 흡인력을 발생하는 액츄에이터 사이의 위치 불일치를 보정하는 방법을 개발하고 실험 대상에 적용하였다. 그 결과 front 방향과 rear 방향 사이의 연성 효과가 확연히 감소되었고, 로터 회전시의 진폭이 50,000 rpm에서 ±7㎛ 이내의 성능을 보이는 정밀 진동 제어를 수행하였다. In this paper, the precise vibration control problems of high speed grinding rotor supported by cone-shaped active magnetic bearings are investigated. Toward this end, each part of the system including power amplifiers and magnetic bearing systems are identified s discrete time models, and the results are used for controller design. In addition, the correction method of the position error between sensor and actuator are developed and implemented for the experiments. As a result, the coupling effect between front and rear axis are decreased and the amplitudes of rotor vibration are controlled within ±7㎛ at 50,000 rpm.

전문대학 교양영어 교육에 대한 실태 연구 : 대전지역을 중심으로 Focused on Students Attitudes in Daejeon Area

주양돈 한국현대영어영문학회 2002 현대영어영문학 Vol.46 No.1

This paper aims at analyzing the management situation of English program for liberal arts in junior colleges in the Daejeon area and analyzing students attitudes toward the English program they took. For the study, four instructors and 425 college students from four junior colleges in Daejeon were given questionaires in order to get the data. The result revealed as follows: 1) Fifty one percent of the subjects were not satisfied (very unsatisfied and mostly unsatisfied) with the English class for liberal arts and the difference of the degree of satisfaction from each college students were significantly different. 2) The surveyed students whose majors were social studies, engineering, arts and physical education preferred English conversation (listening and speaking) class (30%) for their liberal arts, however, the students majoring in nursing and health preferred practical English for their majors. 3) Most of the students complained of big class sizes and wanted to divide the students into smaller groups. 4) The colleges don't have effective management sytems of English program for liberal arts. The paper suggests that improved organization for the English program is required in order to arrange the budget and manpower for the effective management of the program. The big classes should be divided into smaller groups and the class division should be done based on the students levels. Various kinds of courses for English should be offered for the students to choose. The text should be well chosen or designed for the student-oriented and task-based lessons. The class should be more focused on improving students communicative ability.