하악 대구치에서 근관세척방법에 따른 잔사제거효과에 대한 평가

이소영,손원준,이우철,금기연,배광식,백승호 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.3

본 연구의 목적은 isthmus가 존재하는 하악 대구치의 근심 근관에서 근관세척방법에 따른 잔사제거효과를 평가하는 것이다. 45개의 하악 대구치의 근심근관을 #30 Profile .06까지 확대하였다. 각 근관을 3개의 군으로 나누고 conventional irrigation syringe와 초음파, RinsEndo를 사용하여 1분간 최종 세척하였다. 조직표본을 제작한 후, 광학현미경으로 치근단 1, 3, 5 mm 부위의 단면을 관찰하였다. 근관과 isthmus의 잔사 양으로 청결도를 계산하고 Mann-Whitney U test로 검정하였다. 1. 초음파 군과 syringe 군은 5 mm 부위의 isthmus를 제외한 나머지 부위에서 청결도의 유의한 차이가 없었다. 2. RinsEndo군은 syringe 군에 비해 1 mm, 3 mm 부위의 근관과, 모든 부위의 isthmus에서 유의하게 높은 청결도를 나타내었다(p<0.05). 3. 초음파 군과 RinsEndo 군은 3 mm 부위의 근관을 제외한 나머지 부위에서 청결도의 유의한 차이가 없었다. 임상적으로 RinsEndo를 이용한 근관세척방법의 부가적인 적용이 하악 대구치의 근심근관의 잔사제거에 효과가 있을 것으로 사료된다. The aim of this in vitro study was to evaluate the cleaning efficacy of various irrigation methods in the mandibular mesial roots. The forty five mesial root canals were shaped by Profile .06 instruments to apical size #30 and irrigated with 5 ml of 3.5% NaOCl. The teeth were divided into 3 groups and irrigated finally for 1 minute; Group 1: syringe irrigation, Group 2: ultrasonic irrigation, Group 3: RinsEndo irrigation. After histological processing, the cross sections of apical 1, 3, and 5 mm level were examined with an optical microscope. The cleanliness values of canals and isthmuses were calculated and analyzed by Mann-Whitney U test. 1. There were no significant differences in both canal and isthmus cleanliness between syringe irrigation and ultrasonic irrigation except 5 mm level of isthmus. 2. RinsEndo irrigation had significantly higher canal cleanliness values than syringe irrigation at 1 mm and 3 mm levels (p<0.05). Also, RinsEndo irrigation had significantly higher isthmus cleanliness VaIues than syringe irrigation at all levels evaluated (p<0.05). 3. There were no statistical differences in both canal and isthmus cleanliness between ultrasonic irrigation and RinsEndo irrigation except 3 mm level of canal. From this study, RinsEndo irrigation can be useful as an additional irrigation procedure.

CELP 보코더에서 델타 피치 검색 방법 개선에 대한 연구

민소연,배명진 한국음성과학회 2004 음성과학 Vol.11 No.3

In this paper, we propose the computational complexity reduction methods of delta pitch search that is used in G.723.1 vocoder. In order to decrease the computational complexity in delta pitch search the characteristic of proposed algorithms is as the following. First, scheme to reduce the computational complexity in delta pitch search uses NAMDF. Developed the second scheme is the skipping technique of lags in pitch searching by using the threshold value. By doing so, we can reduce the computational amount of pitch searching more than 64% with negligible quality degradation.

8.3% Carbamide Peroxide 함유 펜 형 자가미백제인 BIancTis Forte의 색조개선 및 안전성에 관한 임상연구

이진경,민선홍,홍성태,오소람,정신혜,황영혜,유성엽,배광식,백승호,이우철,손원준,금기연 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.2

This clinical study evaluated the whitening effect and safety of polymer based-pen type BlancTis Forte(NIBEC) containing 8.3% carbamide peroxide. Twenty volunteers used the BlancTis Forte whitening agent for 2 hours twice a day for 4 weeks As a control. Whitening Effect Pen (LG) containing 3% hydrogen peroxide was used by 20 volunteers using the same protocol. The change in shade (ΔE^(*) color difference) was measured using Shadepilot™ (DeguDent) before, during and after bleaching (2 weeks, 4 weeks and postbleaching 4 weeks). A clinical examination for any side effects (tooth hypersensitivity or soft tissue complications) was also performed at each check-up. The following results were obtained. 1 Both the experimental and control groups displayed a noticeable change in shade (ΔE) of over 2 No significant differences were found between the two group (p>0.05) implying that the two agents have a similar whitening effect. 2 The whitening effect was mainly due to changes in a and b values rather than in L value (brightness). The experimental group showed a significantly higher change in b value thus yellow shade than the control(p < 0.05) 3 None of the participants complained of tooth hypersensitivity or soft tissue complications confirming the safety of both whitening agents 8.3%의 carbamide peroxide를 함유한 펜형 코팅용 미백제인 BlancTis Forte (NIBEC, Seosul & JinCheon)를 실험군으로, 3% hydrogen peroxide를 함유한글 Whitening Effect Pen (LG. Seoul) 제재를 대조군으로 각각 피험자 20명에게 2시간씩 1일 2회 제조사의 지시대로 치아표면에 4주간 적용하도록 지시하고 색조개선 효능과 안전성을 평가하였다. 미백 효과는 미백 전 및 미백 2주, 4주 및 미백 종료 4주 후에 Shadopilot™을 이용하여 색 변화를 측정하였고, 매 내원시기마다 모든 환자는 치수생활력 검사와 치주 및 치태 검사를 통해 부작용 여부 (치아과민증 및 구감 내 연조직의 부작용)를 기록한 후 다음과 같은 결과를 얻었다. 1.실험군 및 대조군의 색 변화량 (ΔE)은 2이상으로 인지할 수 있는 색 변화를 보였으며, 두 제품 간에는 통계적으로 유의한 차이를 보이지 않아 (p > 0.05) 유사한 미백효능을 나타냄을 알 수 있었다. 2,미백효과는 명도의 개선보다는 주로 a. b값의 변화에 의한 것으로 특히 실험군에서 b값의 변화, 즉 황색조의 개선효과가 대조군에 비해 유의성 있게 높은 것으로 나타났다 (p <0.05). 3.치아나 치은의 과민증이나 이상증상을 호소하는 피험자는 없어 두 제품 모두 안전성을 확인할 수 있었다.

암환자에게 제공된 다빈도 간호중재 분석 : 5개 종합병원을 중심으로

문경희,안미정,김필자,박정연,김명애,박인숙,배수현,이소정,권인각,김소선 병원간호사회 2009 임상간호연구 Vol.15 No.1

Purpose: The purpose of this study was to identify nursing interventions frequently used with cancer patients. Nursing records from 5 general hospitals for patients with stomach, liver, lung or colon cancer were analyzed. Method: A descriptive study methodology was used and nursing records for 15 patients in each disease category at each hospital, who were admitted and discharged during June 2007 were analyzed. Results: Five domains of NIC were found and the physiological(basic) domain was most frequent (31.52%). Twenty two classes of NIC were identified with risk management for safety being most frequent (22.49%). For the 119 nursing interventions identified, the most frequent was pain management with 7,827 (12.31%), followed by prevention of falls (11.76%), surveillance (6.79%) and wound care (5.12%). Nursing activities of pain management and prevention of falls were comparable to activities listed in literature on guidelines for evidence based and best practices in nursing care. Eight of the 17 nursing activities for pain management, and 9 of 14 for fall prevention were consistent with these guidelines. Conclusion: In this study, nursing interventions were found to be focused on physical care, monitoring patients' condition and education. We have to develop diverse nursing interventions and a convenient recording process.

Laparoscopic treatment of a giant cystic adenomyosis with chronic pelvic pain: Rare Case Report

( So Yeon Jeong ),( Ji Yeon Min ),( Junghyun Bae ),( Yeong Jae Lee ),( Da Hye Ju ),( Sang Wook Yi ) 대한산부인과학회 2023 대한산부인과학회 학술대회 Vol.109 No.-

Case Report : A Case of Type B Dissecting Aneurysm Involving Right Sided Aorta with Kommerell`s Diverticulum

( So Yeon Kim ),( Young Soo Lee ),( Kyung Ryun Bae ),( Jin Bae Lee ),( Sub Lee ),( Oh Choon Kwon ) 대한내과학회 2010 The Korean Journal of Internal Medicine Vol.25 No.3

A right-sided aortic arch (RAA) is a rare congenital anomaly, and Stanford type B dissection aneurysms involving this anomaly is also uncommon. Surgical approaches to dealing with an RAA are complicated by the unusual anatomical features of the condition. Here we report the case of a 47-year-old male who had a type B dissecting aneurysm involving an RAA with Kommerell`s diverticulum. Graft replacement was successfully performed with an uneventful postoperative course. (Korean J Intern Med 2010;25:327-330)

ATM망에서 IMA 서비스 특성 분석

배소연(So Yeon Bae),정진수(Jin Su Jung),양대규(Dae Gyu Yang) 한국통신학회 2002 한국통신학회 학술대회논문집 Vol.2002 No.11

광주광역시 요양시설 코로나19 집단 발생 사례에서 코로나19 백신 접종에 의한 사망 예방 효과

류소연(So Yeon Ryu),조준휘(Jun Hwi Cho),이란(Ran Lee),박소영(So Yeong Park),정다운(Daun Jung),배소현(So Hyun Bae),고화평(HwaPyeong Ko) 한국농촌의학 지역보건학회 2022 농촌의학·지역보건 Vol.47 No.2

Objectives: The purpose of this study was to identify the effectiveness of COVID-19 vaccinations on deaths of the COVID-19 cases in some elderly long-term care facilities (LTCF) in Gwangju Metropolitan City. Methods: The study subjects were 659 COVID-19 cases in residents of 7 elderly LTCF, Gwangju, from 21 Dec. 2021 to 28 Jan. 2022. The used variables were confirmed dates for COVID-19, demographic characteristics, co-morbidities, presentation of symptoms, death and vaccination related characteristics including type of vaccine, doses and dates. Vaccination status were classified as not vaccinated, partially and fully vaccinated. The associations of vaccination status and deaths of COVID-19 cases were tested by chi-square test and multiple logistic regression analysis. Results: The rates of not vaccinated, partially vaccinated and fully vaccinated were 19.4%, 10.2% and 70.4%, respectively. The mortality rate of the cases was 6.4%. The death rate by vaccination status was 16.4% in not vaccinated, 15.4% in partially vaccinated and 2.6% in fully vaccinated, showing a statistically significant difference. The adjusted odds ratios (ORs) (95% confidence intervals, CIs) of death compared to fully vaccinated were 7.64 (3.87-16.34) in non-vaccinated, and 6.97 (3.44-14.14) in partially vaccinated. Conclusions: COVID-19 vaccination seems to work effectively in preventing deaths of COVID-19 cases of elderly LTCF residents. This finding support that fully vaccinations in high risk group such as elderly LTCF residents is very important for one of strategies of COVID-19 management.

아우구스투스가 남긴 ‘시민 황제(civilis princeps)’라는 유산

배소연 ( Bae So-yeon ) 한국서양고대역사문화학회(구 한국서양고대사학회) 2020 서양고대사연구 Vol.58 No.-

본 논문은 로마의 초대황제 아우구스투스가 자신을 ‘시민 황제(civilis princeps)’로 선전하게 된 배경과 그가 남긴 시민 황제라는 유산으로 인해 아우구스투스의 후계자들이 지게 된 부담에 대해 살펴보았다. 아우구스투스가 공화정을 전복하고 세운 프린키파투스(Principatus)는 명실공히 일인 군주정(monarchy)이었다. 하지만 아우구스투스의 양부 율리우스 카이사르를 비롯해 공화정 말기 왕권을 탐했다는 의혹을 받은 이들의 말로에서 드러나듯 로마인들은 왕정을 극도로 혐오했다. 이를 누구보다 잘 알고 있던 아우구스투스는 원로원을 폐하는 대신 공화정을 이끌었던 원로원 의원들의 협력을 구했고 자신이 내전의 참화에서 공화정을 복구(res publica restituta)했다는 선전을 펼치며 새로운 정체인 프린키파투스를 공화정의 연속선상에 두었다. 겸양의 덕목을 갖춘 ‘시민 황제’라는 개념 역시 아우구스투스가 군주 이미지 쇄신의 일환으로 고안한 것이었다. 아우구스투스는 자신이 황제가 아니라 마치 일개 시민, 원로원 의원인 것처럼 행동했고 원로원이 자신에게 지나친 영예를 수여하려 할 때마다 이를 극구 사양했다. 그럼에도 공화정기 원로원이 누렸던 권력과 군사력이 황제에게 집중되어 있었기 때문에 아우구스투스의 시민 황제로서의 이미지는 허울에 불과했고 프린키파투스의 군주정적 본질은 공화정의 외피 아래 가려져 있을 뿐이었다. 일인 지배가 선사한 굴종적이나 안온한 평화를 포기할 수 없었고 현실적으로도 원로원 복권이 불가능하다 여겼을 원로원 의원들은 시민 황제라는 개념에 내재된 시혜적 성격을 문제 삼지 않았고 아우구스투스는 모범적인 시민 황제로 역사에 기록되었다. 그러나 치세 초반 아우구스투스의 선례를 철저히 따르고 원로원을 존중하려 했음에도 끝내 오만한 군주로 기억된 제2대 황제 티베리우스의 실패가 보여주듯 시민 황제가 이끄는 일인 군주정이라는 허상은 체제를 설립한 아우구스투스의 정치적 수완과 카리스마를 통해 유지된 것이었다. 프린키파투스가 안정되어 더 이상 체제의 일인 군주정적 성격을 숨길 필요가 없었던 그의 후계자들에게 아우구스투스가 남긴 시민 황제라는 유산은 거추장스러운 짐으로 남게 되었다. This paper examines the historical context that caused the first Roman emperor Augustus to craft his public image as the civilis princeps and the burden that Augustus’ legacy of the civilis princeps created for his successors. Romans carried a deep hatred of monarchy since the establishment of the Republic. This hatred culminated in the murder of Julius Caesar by the senators, who accused him of having aspired to kingship. Fully aware of such tendencies, Augustus contended that there was no rupture between the Principate, which was without doubt a monarchy, and the Republic. By extinguishing the flames of a tedious civil war, Augustus argued that he had saved innumerable lives of fellow Romans and restored the Republic. Seeking the collaboration of the Senate (the former oligarchs of the Republic), Augustus devised the polite fiction of the civilis princeps-the first man who acts with civility among the equal senators. He was always accessible to his fellow senators, and he refused any excessive honors only appropriate for a monarch. This polite fiction of the civilis princeps was conducive to obscuring the image of Augustus as a monarch and maintaining the illusion that the Senate still held some political power under the civil emperor. Augustus’ political acumen and personal charisma enabled him to temporarily mix two incompatible concepts: the monarchy and the civilis princeps. This allowed Augustus to become the an exemplary civil emperor in Roman imperial history. However, Augustus’ immediate successor Tiberius, who strictly followed the precedents of his predecessor and tried to respect the Senate in the early phase of his reign, failed to achieve the designate of the second civilis princeps. Tiberius was not alone in his failure-almost all later emperors inherited the contradiction of the pretending that their rule was not a monarchy, while they were, in fact, monarchs. Only Trajan, who maintained a rapport with the senatorial aristocracy, was admired as the best emperor eight decades after the reign of Augustus. The senatorial literary custom of assessing each emperor’s reign as good or bad based on the latter’s treatment of the Senate was a corollary to the legacy of the civilis princeps that Augustus might not have anticipated.

키토산 겔을 이용한 포름알데하이드 차폐 시트 개발

김소연(So-Yeon Kim),김미소(Mi-So Kim),탁상민(Sang Min Tak),이지환(Ji Whan Lee),심소연(So Yeon Sim),주은희(Eun Hee Joo),김성배(Sung Bae Kim),김창준(Chang-Joon Kim) 한국생물공학회 2014 KSBB Journal Vol.29 No.3

Sick-building syndrome occurs when indoor air is polluted with harmful volatile organic compounds such as formaldehyde which are contained in furniture or new building materials. In this study, formaldehyde-shielding chitosangel sheet was developed and its performance was evaluated. Chitosan and agar were dissolved in acetic acid solution. The optimal concentrations of chitosan, acetic acid and agar were 3, 3, and 2.5 %(w/w). Formaldehyde was spreaded on gypsum board and then wall paper was attached on it by using glue. When chitosan-gel sheet was attached on this control board, the amount of formaldehyde released from the board was decreased by 63% than in control board. On the other hand, decrease in formaldehyde releasing was only 32% when liquid solution of chitosan was spreaded on the control board. This result clearly indicates that chitosan-gel sheet removes formaldehyde more effectively than liqud solution of chitosan. Furthermore, this type of sheet is more applicable to new building than spraying type.